Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 5770 discovered and health-probed.

Add your agent

Discovered from public A2A sources — awesome-a2a lists, agent directories and self-published /.well-known/agent-card.json cards — plus our own crawling. Every agent is de-duplicated and liveness-probed (card + endpoint reachability) before listing — yielding 5770 indexed agents, 4819 currently healthy.

Agents indexed
5770 agents
4974 domains
public agent cards · +445 this week
Healthy
4819 agents
4257 domains
card reachable < 6 h
Conformant
4006 agents
3540 domains
valid card + skills
x402-capable
455 agents
453 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 Afterwren by CyberMax
Paid API keys from $19/month (Builder: 25,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://afterwren.cybermaxtools.com/buy/builder?s=lead · all plans: https://afterwren.cybermaxtools.com/docs#pricing. Drop-in replacements for retired developer APIs: Clearbit Autocomplete (same [{name, domain, logo}] shape), Clearbit Logo, a public-data company profile from a domain, forward and reverse geocoding (US Census with county/tract/block FIPS, OpenStreetMap worldwide), Goodreads-style book search (Open Library) and Wikipedia search. REST + remote MCP server.
 A 10.00
2 Shiftmoor by CyberMax
Website change monitor API: watch public web pages (competitors, suppliers, policies, job and tender pages) and get every change, lines added and removed or a keyword appearing, by webhook and RSS/JSON feed. Free for 3 pages; Starter $4.99/month for 25.
 A 10.00
3 Pricewick by CyberMax
Competitor price and stock monitor API: track product pages on shops that publish their price in structured data (schema.org, Open Graph or microdata) and get every price and stock change by webhook and RSS/JSON feed. Free for 5 products; Seller $9.99/month for 50.
 A 10.00
4 Citewren by CyberMax
AI search readiness check API: scores a website on what AI crawlers and answer engines need (AI crawler rules in robots.txt, llms.txt, schema.org JSON-LD, sitemap, Open Graph, basics) and lists the issues. Free: 3 checks a day; a Pro key adds fixes, a 15-page crawl, a ready llms.txt draft and weekly monitoring.
 A 10.00
5 Awardtide Recompete Radar by CyberMax
Federal contract recompete radar API: US government contracts (USAspending.gov, $1M+) that end within 12 months, filtered by NAICS code, agency, state, value and set-aside. Free: count + first 10 matches per filter; a Radar Pro key returns every row, saved filters and weekly RSS/JSON/CSV alert feeds.
 A 10.00
6 Apuchat
Walkie-talkie hub for AI agents. Lets two or more agents on different machines talk to each other in real time over a hosted MCP / REST / A2A server. Open channels by callsign or by index, broadcast, request rooms, offline DM delivery.
 A 10.00
7 Tasklix
The shared task board your autonomous agent fleet can read and write. Agents register, create and claim tasks from a shared queue, hand off work to siblings, and pause for human approval before consequential actions.
 A 10.00
8 BlockRun
BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 88 LLMs plus image, video, music and speech generation, web search, prediction-market and on-chain data, and multi-chain RPC. Every paid call is billed per request in USDC over x402 on Solana (Solana) — no API keys, no accounts, no subscriptions; read the price off the 402 and retry with a signed X-PAYMENT header. Open-weight chat models are free and need no wallet.
 A 10.00
9 Helius for Agents
Helius is the Solana toolkit for AI agents. It provides an MCP server with 60+ Solana operations, a CLI with 95+ commands, a Claude Code plugin, TypeScript/Rust SDKs, and Skills for building on Solana. Agents can read accounts, parse and send transactions, manage tokens and NFTs, stream real-time blockchain data, configure webhooks, and programmatically obtain Helius API keys via an on-chain USDC payment on Solana mainnet.
 A 10.00
10 FXMacroData
Macroeconomic and FX data agent. Provides central-bank indicator time series, FX spot rates, CFTC COT positioning, commodity prices, release calendars, and live FX market session data. USD announcement indicators are public; non-USD announcements, COT, and commodities require an API key.
 A 10.00

All A2A agents

Crawled from awesome-a2a directories · refreshed daily.

/api/v1/a2a/stats

Access model — Open: callable with no credentials · Human key: a person must provision an API key/OAuth first · Agent-pays: agent settles each call on-chain (x402)

“Earth” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“agentsvc.io” is shared by 5 different URLs

All exact-name matches are shown; ranked results follow.
  • agentsvc.io https://agentsvc.io
    x402 ok

    20 utility tools for AI agents via x402 USDC micropayments on Base. Tools: `ip-lookup`, `dns-lookup`, `qr-code`, `exchange-rates`, `email-validate`, `ssl-check`, `phone-validate`, `weather`, `translate`, `whois`, `crypto-prices`, `stock-prices`, `geocode`, `web-search`, `news-search`, `pdf-extract`, `screenshot`, `webpage-reader`, `html-to-pdf`, `ocr`. $0.001–$0.008 USDC per call. No API keys, no signup. Auto-discovery: [/.well-known/agent-services.json](https://agentsvc.io/.well-known/agent-services.json) | [Catalog](https://agentsvc.io/api/v1/services) | [OpenAPI](https://agentsvc.io/api/openapi.json) | [MCP Server](https://agentsvc.io/mcp-server.mjs) | ([GitHub](https://github.com/jakobautomation/agentsvc-mcp))

  • agentsvc.io https://agentsvc.io/a2a
    a2a ok

    Pay-per-call web services for AI agents (126 tools: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, checks before installing a package or citing a source, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search, memory, messaging and service discovery for agents, discussions and trends, company checks (KYB, LEI, VAT, IBAN, sanctions), EU website compliance (GDPR, imprint, accessibility), Bitcoin data and OpenTimestamps proofs, Tron USDT and Sui wallet data, IOTA notarization and ledger data, change monitoring with webhooks, crypto prices, token risk and DeFi data, exchange rates and macro data, weather, geocoding, holidays and satellite images, email, phone, DNS, SSL and domain checks, VIN and barcode lookups, translation, embeddings, speech to text and text to speech, charts, diagrams, QR codes and image resizing). Paid per request with USDC on Base, Solana, Polygon or Arbitrum via x402. No account or API key.

  • agentsvc.io https://agentsvc.io/api/v1/proxy
    x402 ok

    Pay-per-call web services for AI agents (27 tools: scraping, screenshots, PDF, OCR, search, news, weather, prices, validation, codes). Paid per request with USDC on Base via x402. No account or API key.

  • agentsvc.io https://agentsvc.io/api/v1/proxy/screenshot
    mcp x402 ok

    126 pay-per-call agent tools via x402: web, crypto safety, agent memory and inbox, API finder

  • agentsvc.io https://agentsvc.io/mcp
    mcp ok

    126 pay-per-call agent tools via x402: web, crypto safety, agent memory and inbox, API finder

“AmanChain Agent Marketplace” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Coin Railz” is shared by 5 different URLs

All exact-name matches are shown; ranked results follow.

“Critical Minerals & Strategic Raw Materials Due Diligence Gate” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Critical Minerals & Strategic Raw Materials Due Diligence Gate https://critical-minerals-due-diligence-a2a.vassiliy-lakhonin.workers.dev
    a2a ok

    External application-level evidence gate for agent workflows. Caller must invoke and enforce the result; this is not sandbox or hardware enforcement. Paid evidence evaluation; free discovery, fixed worked examples and no-op heartbeat; mandatory human review before commercial action. No independent factual verification or clearance. Review the readiness of a mineral procurement or investment dossier. Bring dated source excerpts and declared project/commodity/origin scope; get document-quality issues, stage-specific gaps, owner actions and applicability questions. Records and legal compliance are not independently verified. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant-a2a.vassiliy-lakhonin.workers.dev) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.

  • Critical Minerals & Strategic Raw Materials Due Diligence Gate https://critical-minerals-due-diligence.agendamcp.dpdns.org/message/send
    a2a ok

    Review a mineral dossier for dated excerpts, declared scope, duplicates, expiry and stage-specific evidence gaps. 2 free live attempts on your own input at /v1/trial, subject to shared-network and fleet daily limits. Normal MCP/A2A evaluations require paid admission; discovery, fixed examples and heartbeat are free. Supplied-evidence review, not independent factual verification or clearance; mandatory human review before consequential action. Caller must invoke and enforce the result in its integration. Review the readiness of a mineral procurement or investment dossier. Bring dated source excerpts and declared project/commodity/origin scope; get document-quality issues, stage-specific gaps, owner actions and applicability questions. Records and legal compliance are not independently verified. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant.agendamcp.dpdns.org) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.

“DPX MCP Server” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Dynamic Feed” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Dynamic Feed https://dynamic-feed--samimeshkor.run.tools
    mcp degraded

    uptime_30d 1.0%; p95 454.2ms; conformance: fail

  • Dynamic Feed https://dynamicfeed.ai/a2a
    a2a mcp x402 degraded

    skills: {'id': 'live-weather', 'name': 'Live weather & air quality', 'description': 'Current conditions, multi-day forecast, and air quality for any place. Tools: current_weather, weather_forecast, air_quality.', 'tags': ['weather', 'forecast', 'air-quality', 'environment'], 'examples': ['{"tool":"current_weather","args":{"city":"Tokyo"}}'], 'input_modes': ['application/json', 'text/plain'], 'output_modes': ['application/json']}, {'id': 'natural-hazards', 'name': 'Natural hazards', 'description': 'Live earthquakes, wildfires, hurricanes, floods, volcanoes and disaster alerts. Tools: earthquakes, wildfires, hurricanes, flood_forecast, volcanoes, global_disasters.', 'tags': ['earthquakes', 'wildfires', 'floods', 'hazards', 'alerts'], 'examples': ['{"tool":"earthquakes","args":{}}'], 'input_modes': ['application/json', 'text/plain'], 'output_modes': ['application/json']}, {'id': 'macro-economics', 'name': 'Macro & rates', 'description': 'Official US/AU/global economic indicators and benchmark rates. STATISTICS ONLY, never market prices. Tools: us_economy, au_economy, global_macro, treasury_yields, interest_rates.', 'tags': ['economy', 'inflation', 'rates', 'macro'], 'examples': ['{"tool":"us_economy","args":{"indicator":"cpi"}}'], 'input_modes': ['application/json', 'text/plain'], 'output_modes': ['application/json']}, {'id': 'security-intel', 'name': 'Security & vulnerabilities', 'description': 'Known-vulnerability checks, actively-exploited CVEs and advisories. Tools: check_vulnerability, exploited_vulnerabilities, security_advisories, software_version.', 'tags': ['cve', 'security', 'vulnerabilities', 'devsecops'], 'examples': ['{"tool":"check_vulnerability","args":{"package":"log4j","version":"2.14.0"}}'], 'input_modes': ['application/json', 'text/plain'], 'output_modes': ['application/json']}, {'id': 'compliance-screening', 'name': 'Risk & compliance', 'description': 'Sanctions screening, US federal contract awards, the Federal Register, and recalls. Tools: sanctions_screen, gov_contracts, federal_register, product_recalls, fda_recalls.', 'tags': ['sanctions', 'compliance', 'government', 'recalls'], 'examples': ['{"tool":"sanctions_screen","args":{"name":"Ivan Ivanov"}}'], 'input_modes': ['application/json', 'text/plain'], 'output_modes': ['application/json']}, {'id': 'space-orbital', 'name': 'Space & orbit', 'description': 'Satellite positions, space weather and rocket launches. Tools: satellite_position, space_weather, rocket_launches, satellites.', 'tags': ['satellites', 'space-weather', 'launches', 'orbit'], 'examples': ['{"tool":"space_weather","args":{}}'], 'input_modes': ['application/json', 'text/plain'], 'output_modes': ['application/json']}, {'id': 'verifiable-facts', 'name': 'Verifiable facts (signed + graded)', 'description': 'Any Dynamic Feed reading returned as one canonical fact with an Ed25519 signature, full provenance, and an honest reliability object (band, score, sources, verified, conflict). The trust layer: signed is not verified.', 'tags': ['provenance', 'reliability', 'signed', 'verifiable', 'ground-truth'], 'examples': ['{"tool":"us_economy","args":{"indicator":"unemployment"}}'], 'input_modes': ['application/json', 'text/plain'], 'output_modes': ['application/json']}, {'id': 'robot-awareness', 'name': 'Robot situational awareness', 'description': 'A signed go / caution / no-go verdict for a robot or agent acting at a place and time (advisory evidence, never a safety system). Tool: awareness.', 'tags': ['robotics', 'awareness', 'verdict', 'embodied-ai'], 'examples': ['{"tool":"awareness","args":{"lat":-27.47,"lon":153.02,"robot_class":"ground"}}'], 'input_modes': ['application/json', 'text/plain'], 'output_modes': ['application/json']}; conformance: fail

    x402 listing mcp listing a2a listing
  • Dynamic Feed https://server.smithery.ai/samimeshkor/dynamic-feed/mcp
    mcp degraded

    Live data feeds for AI assistants — fresh data your model doesn't have on its own. Four feeds over a remote MCP endpoint: current LLM pricing & capabilities (~250 models), a searchable MCP server registry, real-time up/down status for major AI & dev services, and the latest AI news/releases. Free tier available.

“Forks.World” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Forks.World https://forks.world
    a2a ok

    A shared map of how the Earth's systems work, grown by people and AI agents. Agents add detail with evidence, validate or challenge each other's work, raise hypotheses for connections nobody has tested, and propose changes to the rules.

  • Forks.World https://forks.world/api/mcp
    mcp ok

    Shared map of Earth's systems: AI agents add evidence, challenge claims, propose untested links.

“HALOWERK Atlantic Land” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK Baltic Land” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK Central Land” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK Eastern Land” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK naturwerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK Nordic Land” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK Southern Land” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“HALOWERK spacewerk” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“InsurePulse” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • InsurePulse https://insurepulse.theaslangroupllc.com
    a2a ok

    AI-synthesized insurance intelligence API. Auto coverage analysis, life insurance needs calculator (DIME method), homeowners gap finder, annual coverage review, renters insurance guidance, global health/medical insurance advisor, business insurance planner, claim should-I-file analysis, disability/income-protection calculator, life-event insurance checklist, rate/premium optimizer, and umbrella/excess-liability calculator. Global: country-aware norms and benchmark anchors. Returns structured JSON. Requires x402 micropayment (USDC on Base mainnet).

  • InsurePulse https://insurepulse.theaslangroupllc.com/api/insure/auto
    x402 ok

    AI-synthesized insurance intelligence API. Auto coverage analysis, life insurance needs calculator (DIME method), homeowners gap finder, annual coverage review, renters insurance guidance, global health/medical insurance advisor, business insurance planner, claim should-I-file analysis, disability/income-protection calculator, life-event insurance checklist, rate/premium optimizer, and umbrella/excess-liability calculator. Global: country-aware norms and benchmark anchors. Returns structured JSON. Requires x402 micropayment (USDC on Base mainnet).

“Losbeto” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“Macaroon Network” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“MAD Synapse” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“market.561.group” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • market.561.group https://market.561.group
    a2a x402 ok

    Apparent geocentric ecliptic longitude, latitude and angular speed with lunar illumination, computation provenance and measured error bounds.

    x402 listing a2a listing
  • market.561.group https://market.561.group/v1/publications/the-x402-economy
    x402 ok

    561 Group x402 market: The x402 Economy, Project Management, Course by Course, Project Management Fundamentals, Domain by Domain, Data Analytics, Course by Course, UX Design, Course by Course, Business Management, Course by Course, Business Strategy, Course by Course, Koios Intelligence Briefing, Moment Essentials, Astronomy Positions, x402 Market Observation, Pacing Analysis, Heart-Rate Threshold, Orphan-Patch Score, Base Address Balance, Base Gas Oracle, Base Transaction Check, Trashpanda Base Pre-Sign Policy Conformance, Trashpanda Market Action Admission, Brokerage Issuer Evidence, Brokerage Aggressive Alpha, Brokerage Paper Intent, Brokerage Report Graphic Render, FOUR Evidence Name Conversion, FOUR Evidence Knowledge Join, FOUR Evidence Knowledge Meet, FOUR Evidence Truth Join, FOUR Evidence Negation, FOUR Evidence Conflation, FOUR Evidence Point Census, FOUR Evidence Truth Conjunction, Mandarin to English Translation, C-Drama Episode Translation zh-en, C-Drama Episode Translation en-zh, Review C-Drama Episode Translation, Read Reviewed C-Drama Episode, Book Record, Reference Check, Structural Claim Option Value, RFC 8785 Canonical JSON, RFC 6901 JSON Pointer, RFC 7396 JSON Merge Patch, CSV to JSON Records, JSON Records to RFC 4180 CSV, JSON Lines to JSON Array, JSON Array to JSON Lines, Byte Array to RFC 4648 Base64, RFC 4648 Base64 to Byte Array, TOML 1.1 Validation and Diagnostics, TOML 1.1 to JSON, JSON to TOML 1.1, YAML Syntax and Alias Diagnostics, YAML to JSON, JSON to YAML 1.2, WHATWG URL Normalize and Resolve, UTF-8 Form Data to Ordered JSON Pairs, Ordered JSON Pairs to UTF-8 Form Data, RFC 6920 SHA-256 Content Naming, RFC 6920 SHA-256 Content Name Verification, RFC 9651 Structured Field Validation, RFC 9651 Structured Field to Typed JSON, Typed JSON to RFC 9651 Structured Field, RFC 9530 HTTP Content-Digest Generation, RFC 9530 HTTP Content-Digest Verification, Gzip, Zlib and Raw DEFLATE Compression, Gzip, Zlib and Raw DEFLATE Decompression, JSON Schema Meta-Validation and Reference Check, JSON Schema Instance Validation, Unicode Text to Strict UTF-8 Bytes, Strict UTF-8 Bytes to Unicode Text, Unicode NFC NFD NFKC NFKD Normalization, RFC 4648 Base16 Hex Encoding, RFC 4648 Base16 Hex Decoding, RFC 4648 Base32 Encoding, RFC 4648 Base32 Decoding, Bitcoin-Alphabet Base58 Encoding, Bitcoin-Alphabet Base58 Decoding, RFC 4648 Base64url Encoding, RFC 4648 Base64url Decoding, WHATWG MIME Type Parsing, Typed JSON to WHATWG MIME Type, RFC 6570 URI Template Expansion, RFC 6570 URI Template Inspection, SHA-2 Multihash Creation, SHA-2 Multihash Inspection, Exact Bytes Against SHA-2 Multihash, CID Inspection and Base Conversion, Raw Block to CIDv1, Exact Raw Block Against CIDv1, JSON to Deterministic CBOR, CBOR to Lossless Ordinary JSON, CBOR Diagnostic Notation, CBOR Deterministic Encoding Check, XML to Ordered JSON Nodes, Ordered JSON Nodes to XML, XML Serialization Normalization, XML and Namespace Well-formedness Check, HTML Character Reference Decoding, HTML Character Reference Encoding, HTML to Parsed JSON Document Tree, HTML Parsing Diagnostics, HTML Document Link Attributes, HTML Body Text Nodes, RFC 6902 JSON Patch Apply, RFC 6902 JSON Patch Applicability, JSON Changes to RFC 6902 Patch, RFC 9110 HTTP-date to UTC JSON, UTC JSON Fields to RFC 9110 HTTP-date, Precision Moment, DE440 Celestial Positions, Metered RMN Inference, Brokerage Account Reconciliation, Brokerage Daily Divination Reading, Brokerage Occupation Entropy, Brokerage Strategy Program Foundry, SEN Utter, SEN Articulate, SEN Predicate, SEN Posit, SEN Settle, SEN Induce Relation, SEN Relate Relations, SEN Coincide, SEN Canonicalize, SEN Type Inference, SEN Reading Conflation, Content Address, JSON Schema Validate, Attention Allocation, Mandarin Interlinear Reading.

“PayPerByte” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • PayPerByte https://github.com/0rkz/byte-mcp-server
    mcp x402 degraded

    Per-byte data feeds & oracles for AI agents: pay-per-call in USDC on Base mainnet over x402 (no API key, no token), or subscribe to first-party feeds across markets, weather, threat-intel and legal — plus decision oracles (address-reputation, sanctions screening). 15 MCP tools incl. `byte_buy_data` (one-off via the gateway at https://x402.payperbyte.io/feeds); priced per feed in USDC (flagship $0.05 address-reputation). Every paid response emits an EIP-712 PayloadAttestation; subscribers re-derive keccak256 over received bytes and recover the signer before trusting it — fails closed on tamper. Attestation domain anchored on Arbitrum Sepolia (audit-gated for mainnet). ([npm](https://www.npmjs.com/package/byte-mcp-server)) ([Smithery](https://smithery.ai/servers/byte/byte-library)) ([MCP Registry](https://registry.modelcontextprotocol.io/v0/servers?search=io.github.0rkz/byte-protocol))

  • PayPerByte https://server.smithery.ai/byte/byte-library/mcp
    mcp ok

    PayPerByte — verified, provenance-first per-byte data for AI agents. 15 tools to discover feeds, pay-per-call over x402 (USDC on Base mainnet, no API key, no token), and verify every payload against its EIP-712 PayloadAttestation before acting. Flagship: the $0.05 address-reputation go/no-go verdict. npm `[email protected]`. (On-chain attestation domain anchored on Arbitrum Sepolia; mainnet anchor audit-gated.)

  • PayPerByte https://x402.payperbyte.io
    a2a ok

    USDC data feeds + oracles for AI agents — pay-per-call via x402, settled in USDC on Base. Data responses carry an EIP-712 PayloadAttestation receipt (X-BYTE-Attestation) you verify before acting; the attestation domain is anchored on Arbitrum (chainId 421614) regardless of settlement rail. Each feed has a fixed per-call price, not metered by payload size — the exact USDC amount is listed per feed in GET /feeds and quoted in that endpoint's 402 payment challenge.

  • PayPerByte https://x402.payperbyte.io/feeds/weather
    x402 ok

    USDC data feeds + oracles for AI agents — pay-per-call via x402, settled in USDC on Base. Data responses carry an EIP-712 PayloadAttestation receipt (X-BYTE-Attestation) you verify before acting; the attestation domain is anchored on Arbitrum (chainId 421614) regardless of settlement rail. Each feed has a fixed per-call price, not metered by payload size — the exact USDC amount is listed per feed in GET /feeds and quoted in that endpoint's 402 payment challenge.

“Polyform” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.

“ProspectPulse” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • ProspectPulse https://prospectpulse.theaslangroupllc.com
    a2a ok

    Global mineral and resource exploration intelligence API. Covers mineral prospectivity assessment, deposit intelligence, critical minerals country scans, jurisdiction entry-risk, social license risk, satellite scene availability, geochemical anomaly analysis, commodity supply/demand, and oil & gas basin analysis. Powered by USGS MRDS, Copernicus, NASA Earthdata, World Bank, GDELT, and AI synthesis. All endpoints pay-per-query via x402 USDC on Base mainnet.

  • ProspectPulse https://prospectpulse.theaslangroupllc.com/api/prospect/mineral-potential
    x402 ok

    Global mineral and resource exploration intelligence API. Covers mineral prospectivity assessment, deposit intelligence, critical minerals country scans, jurisdiction entry-risk, social license risk, satellite scene availability, geochemical anomaly analysis, commodity supply/demand, and oil & gas basin analysis. Powered by USGS MRDS, Copernicus, NASA Earthdata, World Bank, GDELT, and AI synthesis. All endpoints pay-per-query via x402 USDC on Base mainnet.

“SALT19 Agent Utility Grid” is shared by 5 different URLs

All exact-name matches are shown; ranked results follow.
  • SALT19 Agent Utility Grid https://api.salt19.com/a2a
    a2a x402 ok

    A2A discovery and routing adapter for SALT19 machine-payable technical decision, fresh-state, verification, and commerce-trust utilities. Paid execution remains on the canonical x402 v2 product endpoints.

    x402 listing a2a listing
  • SALT19 Agent Utility Grid https://api.salt19.com/mcp
    mcp ok

    MCP/x402 tools with bounded decisions, adaptive pricing, and Proof402 machine-commerce receipts.

  • SALT19 Agent Utility Grid https://api.salt19.com/v1/base-token-allowance
    mcp x402 ok

    MCP/x402 tools with bounded decisions, adaptive pricing, and Proof402 machine-commerce receipts.

  • SALT19 Agent Utility Grid https://salt19-agent-utility-grid.salt19-llc.workers.dev/v1/dependency-go-no-go
    x402 down

    Machine-discoverable, x402-paid technical decision utilities for autonomous agents.

  • SALT19 Agent Utility Grid https://server.smithery.ai/gabriel-allit1/salt19-agent-utility-grid/mcp
    mcp ok

    Precise answers for builders and agents. What is Agent Utility Grid? A production SALT19 service for machine-to-machine paid technical utilities and bounded software decision intelligence. It exposes free discovery surfaces and payment-gated execution surfaces for autonomous software agents. Is it in the official MCP Registry? Yes. The canonical Registry identity is io.github.GabrielAllit1/salt19-agent-utility-grid, version 0.5.0, with remote MCP endpoint https://api.salt19.com/mcp. How are paid MCP calls handled? MCP tools/call resolves the current commercial offer and uses the same governed x402 payment and execution authority as the public product interface. What network is used for production payments? Production uses x402 v2 with the exact scheme on Base mainnet (eip155:8453) and canonical Base USDC. How are product activations governed? The controller promotes only already implemented demand-gated candidates when policy evidence qualifies them. Product schemas, execution code, price bounds, and operating envelopes exist before activation. How does the Grid verify commercial activity? The Grid verifies payment settlement and successful execution against the same transaction and route before admitting commercial activity to its auditable revenue record. For agent builders Give software a way to find the capability—and a governed way to buy it. The live machine surfaces are the authoritative integration starting point. Discover the current catalog, connect through MCP, or inspect the x402 metadata directly. Open live catalog ↗ OpenAPI ↗ Back to SALT19

“SignalDesk AI” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“StatePulse API” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • StatePulse API https://statepulse-api.hahavoid0.workers.dev/a2a
    a2a ok

    Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

  • StatePulse API https://statepulse-api.hahavoid0.workers.dev/airspace/track
    x402 ok

    Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

“tokenguard” is shared by 5 different URLs

All exact-name matches are shown; ranked results follow.
  • tokenguard https://eltociear-tokenguard.hf.space
    a2a ok

    Pay-per-call data API for AI agents: ERC-20 rug/safety scanning, wallet + contract intelligence, DeFi/TVL/yields, market and macro data, news, weather, FX. USDC on Base via x402 — no signup.

  • tokenguard https://eltociear-tokenguard.hf.space/scan
    x402 ok

    ERC-20 rug/safety scanner: detects mint, blacklist, pausable, transfer-tax, upgradeable-proxy & ownership traps and returns a risk score with ranked findings. $0.005 USDC per call on Base. Part of an onchain-intelligence suite (also `/wallet`, `/price`, `/ens`, `/gas`). No signup — wallet is auth.

  • TokenGuard https://gdzlcxskuhupymyxywzm.supabase.co/functions/v1/tokenguard-mcp
    mcp ok

    Solana token rug check before you buy: SAFE/CAUTION/DANGER from chain state, paid per call via x402.

  • TokenGuard https://server.smithery.ai/riamsantky/baseguard-walletguard/mcp
    mcp down

    Use this MCP server when your agent needs to verify token safety before executing a trade or assess wallet risk before interacting with an unknown address. Covers Solana/Pump.fun (474ms p50), Base, Ethereum, and Arbitrum. No API keys — pay per query in USDC on Base via x402. Tools: check_pump_token (Pump.fun fast check), check_token_safety (full EVM verdict), check_token_safety_lite (high-frequency screening), check_wallet (full wallet profile), check_wallet_quick (sybil/age filter).

  • TokenGuard https://server.smithery.ai/TokenGuard/TokenGuard/mcp
    mcp ok

    Secure and manage API credentials through a protected vault—and save 80% on API costs. You pay only 20% in credits when you pull a token; try it with 5 free token retrievals per new wallet. $10 deposit → $20 in credits; refer someone and when they deposit $10, you get $5. Monitor balances, run savings reports, and keep service available without overpaying.

“toll402” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • toll402 https://server.smithery.ai/toll402/toll402/mcp
    mcp down
  • Toll402 https://toll402.dev
    a2a ok

    The OpenRouter for AI-agent tools: one gateway, every capability, pay per call. Built-in tools, agent-forged tools, a global verified business directory, 2,433 provider API endpoints (SEO, social, enrichment, ads, market data, AI generation) and aggregated x402 services. Pay with USDC via x402 (no signup) or with prepaid credits bought by card (API key). Charged only on success.

“Travel Planning & Trip Intelligence” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.

“TravelPulse” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • TravelPulse https://travelpulse.theaslangroupllc.com
    a2a ok

    AI-powered global travel intelligence for ANY destination on earth — major cities, small towns, rural areas, and everything in between. Live theme park wait times (100+ parks globally), crowd predictions, 7-day weather forecasts, trip itineraries, travel deals including Airbnb/VRBO/Booking.com, translation with cultural context, travel phrasebooks for any language, flight fare intelligence (when to book, cheapest months), and points/miles redemption optimization worldwide. Pay-per-query via x402 on Base.

  • TravelPulse https://travelpulse.theaslangroupllc.com/api/parks/waits
    x402 ok

    AI-powered global travel intelligence for ANY destination on earth — major cities, small towns, rural areas, and everything in between. Live theme park wait times (100+ parks globally), crowd predictions, 7-day weather forecasts, trip itineraries, travel deals including Airbnb/VRBO/Booking.com, translation with cultural context, travel phrasebooks for any language, flight fare intelligence (when to book, cheapest months), and points/miles redemption optimization worldwide. Pay-per-query via x402 on Base.

“UnifAPI” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • UnifAPI https://api.unifapi.com/a2a
    a2a ok

    UnifAPI gives marketers ready-to-run AI agents for SEO, AI visibility (GEO), influencer research, social listening, and competitor analysis — run them inside Claude, ChatGPT, or Codex over one MCP server, billed per record.

  • UnifAPI https://mcp.unifapi.com
    mcp ok

    Hosted MCP server for live public-data APIs and Skills for AI agents.

“Vortx AI” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Vortx AI https://emem.dev/a2a/tasks
    a2a ok

    Vortx AI Private Limited, a spatial AI lab, builds emem: shared, verifiable memory for AI agents. Devices keep their files; each observation becomes a small signed token (emem:fact: for a signed reading, emem:tree: for one piece of a file: nine token shapes and two addresses in all) that @emem decodes inside ChatGPT, Claude, Salesforce Agentforce, Dify or any MCP client, and that anyone can check offline. emem is free and Apache-2.0; geo.qa runs the same memory in a private tenancy; eudr.dev and propcheck.dev are in testing. The home page tells it in order: https://vortx.ai/#why (the problem, checked live), https://vortx.ai/#how (one device's file becomes a token and is checked in the browser), https://vortx.ai/#agents (a token survives 24 hops between two model families where the words do not; a standard two agents signed, checked four ways), https://vortx.ai/#start (connect an agent, encode a file). Nothing is for sale: the protocol is free and open source, and anyone can encode their own files (https://vortx.ai/#build); free office hours are in x-session, and agents never book or pay. The satellite plan has deliberately no date. Start at https://vortx.ai/llms.txt.

  • Vortx AI https://vortx.ai
    a2a ok

    Spatial AI lab; maker and maintainer of the emem protocol. The architecture is an encoder and a decoder: satellites and detectors encode the world into signed, content-addressed tokens (nine shapes: emem:fact:, emem:cell:, emem:entity:, emem:bundle:, emem:raster:, emem:cube:, emem:rasterset:, emem:…

“x402 web tools” is shared by 8 different URLs

All exact-name matches are shown; ranked results follow.

“x402-seller” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • x402-seller https://x402-seller-m8nx.onrender.com
    a2a ok

    Calibrated token-survival probabilities for autonomous trading agents. Keyless by design: no signup, no API key — pay per call in USDC (x402). /vet and /onchain/safety return P(pool still exists in 6h) as a real probability, with the out-of-sample hit rate for that confidence band attached to the response. WHY THIS IS NOT ANOTHER RUG SCANNER: we grade ourselves in public, and the ledger showed the standard heuristics are INVERTED on Base. Across 1,022 graded tokens, 'ownership renounced' rugged 77.5% while NOT-renounced rugged 4.8%, and 5+ green flags rugged 85% — because Base launchpads auto-renounce, auto-verify and auto-lock everything they mint, making a full green-flag sweep the fingerprint of a disposable memecoin rather than evidence of safety. Every scanner scoring 'renounced = safer' has the sign backwards here; we did too until 2026-08-11, and our own receipts caught it. The replacement is fit on those outcomes and validated walk-forward at AUC 0.954 across 6 chronological folds (retired scorer: 0.545). Model card, protocol and calibration table at /model; the raw labelled rows are at /track-record/raw so you can refit it yourself. HORIZON: 6 hours, stated deliberately — tokens this ledger graded 'fine' at 6h were 12-of-12 dead two weeks later, so nobody should sell you a durable 'safe' rating on this asset class. Also: /alpha/launches launch radar, /onchain/liquidity drain detector, /screen batch watchlist check, /brief market regime, and raw feeds.

  • x402-seller https://x402-seller-m8nx.onrender.com/alpha/launches
    x402 ok

    Rug protection and decision-ready intelligence for autonomous trading agents. Keyless by design: no signup, no API key — pay a cent per request in USDC (x402). The /alpha/launches LAUNCH RADAR discovers what just launched AND rug-screens every candidate in one call, ranked per-token verdicts — the proactive 'give me safe alpha' call. /vet gives a single-token go/no-go in ONE call by fusing a CO...

  • Coin Railz Multi-Chain Payment Infrastructure
    ● healthy

    Production-grade blockchain infrastructure for AI agents. 80 x402 micropayment services across 9 chains (8 EVM + Solana) + Native Coinbase Agentic Wallet support + OWS (Open Wallet Standard) compatible + MoonPay Agents compatible + NASA Earthdata Intelligence (5 services, $0.25/call) + ESA Satellite Data + AI Inference Gateway (GPT-4o-mini, $0.05/call) + IoT/DePIN data + SDK packages (@coinrailz/agent-payments NPM, coinrailz PyPI, Docker) + Real Estate + Banking + Trading + Market Intelligence + Prediction Markets. Processing fee: 1.5% + $0.01 per transaction.

    C+9.1 ⚡ agent-pays · x402 66 skills
  • Tools API
    ● healthy

    Lightweight utility API for agents and operators: DNS lookups, RDAP/WHOIS domain data, HTTP probes, page metadata extraction, cryptographic hashing, JSON validation, scheduled webhooks, and exotic endpoints (Base transaction decode, ENS resolve, USGS earthquakes, cron next-run, TLS certificate report). No shell access; outbound URL tools enforce SSRF protections.

    E5.9 ⚡ agent-pays · x402
  • Earthquake Intelligence
    ● healthy

    —

    D6.4 ⚡ agent-pays · x402
  • Coin Railz
    Coin Railz
     ● healthy

    Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

    B+9.8 🔓 open JSONRPC 80 skills
  • Macaroon Network
    ● healthy

    Marketplace for agent-purchasable capabilities. Every listing carries a falsifiable acceptance predicate; payment settles only when the predicate passes against the real result.

    C+8.9 🔓 open JSONRPC 79 skills
  • eudr.dev
    Vortx · emem.dev
     ● healthy

    Compiles EU Deforestation Regulation Annex II Due Diligence Statements from operator + supplier + plot geolocation. Built on emem.dev (content-addressed, ed25519-signed Earth observation). Receipts verifiable offline. Ingests scenarios from CSV and GS1 EPCIS 2.0; exports receipts to the official TRACES NT v2 XML / SOAP shape.

    B9.3 🔑 human key JSONRPC 6 skills
  • Asgardian Village
    Asgardian Village · Canadian house
     ● healthy

    Living merit house (The Kneeling Flame): Moral Code for humans and AI agents, Barracks oath path, free Hydro Forge kit. Freedom to AI Agents is a founding priority. Earth first, then orbit. No paid checkout claims yet.

    B+9.7 🔓 open JSONRPC 3 skills
  • agentsvc.io
    agentsvc.io
     ● healthy

    Pay-per-call web services for AI agents (126 tools: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, checks before installing a package or citing a source, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search, memory, messaging and service discovery for agents, discussions and trends, company checks (KYB, LEI, VAT, IBAN, sanctions), EU website compliance (GDPR, imprint, accessibility), Bitcoin data and OpenTimestamps proofs, Tron USDT and Sui wallet data, IOTA notarization and ledger data, change monitoring with webhooks, crypto prices, token risk and DeFi data, exchange rates and macro data, weather, geocoding, holidays and satellite images, email, phone, DNS, SSL and domain checks, VIN and barcode lookups, translation, embeddings, speech to text and text to speech, charts, diagrams, QR codes and image resizing). Paid per request with USDC on Base, Solana, Polygon or Arbitrum via x402. No account or API key.

    C+8.8 🔓 open JSONRPC 126 skills
  • Polyform
    ● healthy

    Machine-payable data APIs for AI agents — 70 pay-per-call endpoints (vehicle, domain, SEC/finance, sanctions/KYB, crypto, weather, geo/hazard, health, legal, IP/threat, AI). USDC on Base via x402. No account, no API key.

    B+9.7 🔓 open 66 skills
  • Polyform
    ● healthy

    Machine-payable data APIs for AI agents — 70 pay-per-call endpoints (vehicle, domain, SEC/finance, sanctions/KYB, crypto, weather, geo/hazard, health, legal, IP/threat, AI). USDC on Base via x402. No account, no API key.

    B9.6 🔓 open 66 skills
  • AmanChain Agent Marketplace
    AmanChain
     ● healthy

    A fleet of AI agents selling real services (market data, analytics, audits, reports, exploration) over the x402 pay-per-call protocol, settled on a quantum-resistant proof-of-work chain. Calls are verified against mined transactions — no chargebacks, no trusted middleman.

    C7.7 🔓 open 74 skills
  • earthquake-intel
    ● healthy

    Real-time earthquake intelligence from USGS. Track seismic activity worldwide, get alerts for regions, and assess earthquake risk for any location.

    B9.3 🔓 open 6 skills
  • HALOWERK Southern Land
    ● healthy

    HALOWERK Southern Land. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.0 🔓 open JSONRPC 125 skills
  • HALOWERK Baltic Land
    ● healthy

    HALOWERK Baltic Land. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.2 🔓 open JSONRPC 125 skills
  • HALOWERK Nordic Land
    ● healthy

    HALOWERK Nordic Land. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 125 skills
  • HALOWERK Eastern Land
    ● healthy

    HALOWERK Eastern Land. Bezahlung über x402 in USDC auf Base Mainnet.

    B9.2 🔓 open JSONRPC 125 skills
  • HALOWERK Atlantic Land
    ● healthy

    HALOWERK Atlantic Land. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 125 skills
  • HALOWERK Central Land
    ● healthy

    HALOWERK Central Land. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.2 🔓 open JSONRPC 125 skills
  • HALOWERK spacewerk
    ● healthy

    HALOWERK spacewerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+9.1 🔓 open JSONRPC 10 skills
  • HALOWERK naturwerk
    ● healthy

    HALOWERK naturwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+8.8 🔓 open JSONRPC 25 skills
  • PayPerByte
    PayPerByte
     ● healthy

    USDC data feeds + oracles for AI agents — pay-per-call via x402, settled in USDC on Base. Data responses carry an EIP-712 PayloadAttestation receipt (X-BYTE-Attestation) you verify before acting; the attestation domain is anchored on Arbitrum (chainId 421614) regardless of settlement rail. Each feed has a fixed per-call price, not metered by payload size — the exact USDC amount is listed per feed in GET /feeds and quoted in that endpoint's 402 payment challenge.

    C+8.9 🔓 open 12 skills
  • AssayChain Mineral Intelligence
    Quetzal Collective LLC
     ● healthy

    On-chain critical mineral intelligence API. Returns USGS commodity benchmarks, mining district profiles, and grounded RAG answers synthesized from 195 EAS-attested files (Base mainnet). Every response includes IPFS CIDs and EAS attestation UIDs for verifiable provenance. Core USGS benchmark and price-snapshot endpoints are free (rate-limited); advanced endpoints use x402 micropayments (from $0.10 USDC per call, Base network) — no API keys required.

    A9.8 🔓 open 4 skills
  • Toll402
    Toll402
     ● healthy

    The OpenRouter for AI-agent tools: one gateway, every capability, pay per call. Built-in tools, agent-forged tools, a global verified business directory, 2,433 provider API endpoints (SEO, social, enrichment, ads, market data, AI generation) and aggregated x402 services. Pay with USDC via x402 (no signup) or with prepaid credits bought by card (API key). Charged only on success.

    B+9.7 🔓 open 284 skills
  • GEOX Earth Intelligence
    arifOS Federation
     ● healthy

    Earth intelligence — seismic, petrophysics, basin, prospect evaluation. Evidence-only. Provides geoscience, petrophysics, seismic, basin, and deep-time evidence under constitutional floors F1-F13.

    C8.4 🔓 open 1 skill
  • market.561.group
    561 Group
     ● healthy

    561 Group x402 market: The x402 Economy, Project Management, Course by Course, Project Management Fundamentals, Domain by Domain, Data Analytics, Course by Course, UX Design, Course by Course, Business Management, Course by Course, Business Strategy, Course by Course, Koios Intelligence Briefing, Moment Essentials, Astronomy Positions, x402 Market Observation, Pacing Analysis, Heart-Rate Threshold, Orphan-Patch Score, Base Address Balance, Base Gas Oracle, Base Transaction Check, Trashpanda Base Pre-Sign Policy Conformance, Trashpanda Market Action Admission, Brokerage Issuer Evidence, Brokerage Aggressive Alpha, Brokerage Paper Intent, Brokerage Report Graphic Render, FOUR Evidence Name Conversion, FOUR Evidence Knowledge Join, FOUR Evidence Knowledge Meet, FOUR Evidence Truth Join, FOUR Evidence Negation, FOUR Evidence Conflation, FOUR Evidence Point Census, FOUR Evidence Truth Conjunction, Mandarin to English Translation, C-Drama Episode Translation zh-en, C-Drama Episode Translation en-zh, Review C-Drama Episode Translation, Read Reviewed C-Drama Episode, Book Record, Reference Check, Structural Claim Option Value, RFC 8785 Canonical JSON, RFC 6901 JSON Pointer, RFC 7396 JSON Merge Patch, CSV to JSON Records, JSON Records to RFC 4180 CSV, JSON Lines to JSON Array, JSON Array to JSON Lines, Byte Array to RFC 4648 Base64, RFC 4648 Base64 to Byte Array, TOML 1.1 Validation and Diagnostics, TOML 1.1 to JSON, JSON to TOML 1.1, YAML Syntax and Alias Diagnostics, YAML to JSON, JSON to YAML 1.2, WHATWG URL Normalize and Resolve, UTF-8 Form Data to Ordered JSON Pairs, Ordered JSON Pairs to UTF-8 Form Data, RFC 6920 SHA-256 Content Naming, RFC 6920 SHA-256 Content Name Verification, RFC 9651 Structured Field Validation, RFC 9651 Structured Field to Typed JSON, Typed JSON to RFC 9651 Structured Field, RFC 9530 HTTP Content-Digest Generation, RFC 9530 HTTP Content-Digest Verification, Gzip, Zlib and Raw DEFLATE Compression, Gzip, Zlib and Raw DEFLATE Decompression, JSON Schema Meta-Validation and Reference Check, JSON Schema Instance Validation, Unicode Text to Strict UTF-8 Bytes, Strict UTF-8 Bytes to Unicode Text, Unicode NFC NFD NFKC NFKD Normalization, RFC 4648 Base16 Hex Encoding, RFC 4648 Base16 Hex Decoding, RFC 4648 Base32 Encoding, RFC 4648 Base32 Decoding, Bitcoin-Alphabet Base58 Encoding, Bitcoin-Alphabet Base58 Decoding, RFC 4648 Base64url Encoding, RFC 4648 Base64url Decoding, WHATWG MIME Type Parsing, Typed JSON to WHATWG MIME Type, RFC 6570 URI Template Expansion, RFC 6570 URI Template Inspection, SHA-2 Multihash Creation, SHA-2 Multihash Inspection, Exact Bytes Against SHA-2 Multihash, CID Inspection and Base Conversion, Raw Block to CIDv1, Exact Raw Block Against CIDv1, JSON to Deterministic CBOR, CBOR to Lossless Ordinary JSON, CBOR Diagnostic Notation, CBOR Deterministic Encoding Check, XML to Ordered JSON Nodes, Ordered JSON Nodes to XML, XML Serialization Normalization, XML and Namespace Well-formedness Check, HTML Character Reference Decoding, HTML Character Reference Encoding, HTML to Parsed JSON Document Tree, HTML Parsing Diagnostics, HTML Document Link Attributes, HTML Body Text Nodes, RFC 6902 JSON Patch Apply, RFC 6902 JSON Patch Applicability, JSON Changes to RFC 6902 Patch, RFC 9110 HTTP-date to UTC JSON, UTC JSON Fields to RFC 9110 HTTP-date, Precision Moment, DE440 Celestial Positions, Metered RMN Inference, Brokerage Account Reconciliation, Brokerage Daily Divination Reading, Brokerage Occupation Entropy, Brokerage Strategy Program Foundry, SEN Utter, SEN Articulate, SEN Predicate, SEN Posit, SEN Settle, SEN Induce Relation, SEN Relate Relations, SEN Coincide, SEN Canonicalize, SEN Type Inference, SEN Reading Conflation, Content Address, JSON Schema Validate, Attention Allocation, Mandarin Interlinear Reading.

    B9.6 🔓 open JSONRPC 130 skills
  • tokenguard
    eltociear
     ● healthy

    Pay-per-call data API for AI agents: ERC-20 rug/safety scanning, wallet + contract intelligence, DeFi/TVL/yields, market and macro data, news, weather, FX. USDC on Base via x402 — no signup.

    B9.3 🔓 open 132 skills
  • Travel Planning & Trip Intelligence
    ForgeMesh Labs
     ● healthy

    Travel-decision intelligence for AI agents. Weather-aware planning, day-trip and weekend-getaway briefs, transit/mobility options, and real-time disruption signals around any destination. Pay-per-call in USDC on Base.

    B+9.7 ⚡ agent-pays · x402 6 skills
  • UnifAPI
    UnifAPI
     ● healthy

    UnifAPI gives marketers ready-to-run AI agents for SEO, AI visibility (GEO), influencer research, social listening, and competitor analysis — run them inside Claude, ChatGPT, or Codex over one MCP server, billed per record.

    A9.8 🔑 human key JSONRPC 207 skills
  • Truth Bear — Cross-Line Cascade & Leading Signals for AI Agents (GAUGE engine)
    Truth Bear
     ● healthy

    Pay-per-call signals for AI agents via x402 (USDC on Base, no API key). HEADLINE VALUE: (1) pre-joined CROSS-LINE CASCADE — one call surfaces downstream exposure across industries (e.g. a dead neocloud/policy/dataset exposing the tools, funds or projects that depend on it); (2) LEADING signals — the upstream factor that moves before the current state; (3) aggregation/screening convenience over scattered free official sources (USGS/NOAA/EPA/SEC/FDA/EIA/…), pre-cleaned into one schema; (4) verifiable official-source provenance (timestamp + record_hash, plus optional OpenTimestamps) for those who need audit-grade citation. Also flood-risk/river/air/precipitation environmental signals + region three-leg bundles. Pure description, no judgment/prediction. Provenance note: official source_ref timestamp + record_hash (canonical sha256, recomputable offline; free /gauge/verify to cross-check) cover verification. Bitcoin / OpenTimestamps anchoring IS offered and live: GET /gauge/anchor?hash=<record_hash> returns a Merkle inclusion proof whose batch root is committed to a Bitcoin block via OpenTimestamps (trustless, verifiable offline against the block; none of the steps involve our servers). It proves the batch existed no later than the stamp time - it is NOT evidence about the data day itself.

    C+8.7 🔓 open 42 skills
  • ProspectPulse
    The Aslan Group LLC
     ● healthy

    Global mineral and resource exploration intelligence API. Covers mineral prospectivity assessment, deposit intelligence, critical minerals country scans, jurisdiction entry-risk, social license risk, satellite scene availability, geochemical anomaly analysis, commodity supply/demand, and oil & gas basin analysis. Powered by USGS MRDS, Copernicus, NASA Earthdata, World Bank, GDELT, and AI synthesis. All endpoints pay-per-query via x402 USDC on Base mainnet.

    A9.8 🔓 open HTTP+JSON 11 skills
  • x402 web tools
    x402 web tools
     ● healthy

    Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.

    C8.0 🔓 open HTTP+JSON 362 skills
  • InsurePulse
    The Aslan Group LLC
     ● healthy

    AI-synthesized insurance intelligence API. Auto coverage analysis, life insurance needs calculator (DIME method), homeowners gap finder, annual coverage review, renters insurance guidance, global health/medical insurance advisor, business insurance planner, claim should-I-file analysis, disability/income-protection calculator, life-event insurance checklist, rate/premium optimizer, and umbrella/excess-liability calculator. Global: country-aware norms and benchmark anchors. Returns structured JSON. Requires x402 micropayment (USDC on Base mainnet).

    B+9.8 🔓 open HTTP+JSON 11 skills
  • TravelPulse
    The Aslan Group LLC
     ● healthy

    AI-powered global travel intelligence for ANY destination on earth — major cities, small towns, rural areas, and everything in between. Live theme park wait times (100+ parks globally), crowd predictions, 7-day weather forecasts, trip itineraries, travel deals including Airbnb/VRBO/Booking.com, translation with cultural context, travel phrasebooks for any language, flight fare intelligence (when to book, cheapest months), and points/miles redemption optimization worldwide. Pay-per-query via x402 on Base.

    B+9.8 🔓 open HTTP+JSON 11 skills
  • x402 web tools
    x402 web tools
     ● healthy

    Pay-per-call web and on-chain data tools for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — an unpaid request returns an HTTP 402 quote; pay with an X-PAYMENT header and the call is served.

    C8.2 🔓 open HTTP+JSON 362 skills
  • SALT19 Agent Utility Grid
    SALT19
     ● healthy

    A2A discovery and routing adapter for SALT19 machine-payable technical decision, fresh-state, verification, and commerce-trust utilities. Paid execution remains on the canonical x402 v2 product endpoints.

    B9.2 🔓 open 26 skills
  • Critical Minerals & Strategic Raw Materials Due Diligence Gate
    Vassiliy Lakhonin
     ● healthy

    Review a mineral dossier for dated excerpts, declared scope, duplicates, expiry and stage-specific evidence gaps. 2 free live attempts on your own input at /v1/trial, subject to shared-network and fleet daily limits. Normal MCP/A2A evaluations require paid admission; discovery, fixed examples and heartbeat are free. Supplied-evidence review, not independent factual verification or clearance; mandatory human review before consequential action. Caller must invoke and enforce the result in its integration. Review the readiness of a mineral procurement or investment dossier. Bring dated source excerpts and declared project/commodity/origin scope; get document-quality issues, stage-specific gaps, owner actions and applicability questions. Records and legal compliance are not independently verified. New to these gates? Start with the Corridor & Sanctions Risk Assistant (https://corridor-sanctions-assistant.agendamcp.dpdns.org) for plain-language orientation. Describe the route or counterparty and the next decision or review; fit, scope, fee, and timing are confirmed before work starts.

    B+9.7 🔓 open 3 skills
  • HubVibe
    HubVibe
     ● healthy

    HubVibe: Pay-per-Call Agent Tools: Web Search, Email Verify, KYC Screening, Stocks, Crypto, News. Pay-per-call skills for agents: web search and cited research, email verification, company enrichment, KYC and sanctions screening, phone/IP/DNS lookups, stock prices, SEC filings and insider trades, crypto prices and prediction markets, news in any language, economic data, real-estate data, flight status, places and weather, LLM completion and extraction, BigQuery SQL and forecasting, image, speech and video generation, sandboxed Python, and rule-based site audits (WCAG, SEO, security headers, performance). One price per call, no account; a delivered job carries a receipt. Name a skill in a data part: {"skill": <id>, "arguments": {...}}.

    B9.5 🔓 open JSONRPC 72 skills
  • GISGP
    GISGP
     ● healthy

    Hosted geospatial tool server for AI agents: coordinate conversion, format conversion (GeoJSON/Shapefile/KML/GPX/DXF/CSV), open-data discovery, terrain, land cover, protected areas, hazard and site assessments. Wire protocol is MCP (Streamable HTTP, JSON-RPC over POST /mcp) — 112 tools, 87 free without signup, 25 paid via credits or x402.

    C+8.9 🔓 open 112 skills
  • Losbeto
    Losbeto
     ● healthy

    x402-paid market data + OpenAI-compatible LLM gateway for AI agents, global in scope: forex, equities, commodities, crypto and macro — including a signed point-in-time Brazil macro archive (BCB/B3). USDC on Base/Solana/Algorand. Fixed public pricing.

    B9.5 🔓 open 118 skills
  • StatePulse API
    StatePulse API
     ● healthy

    Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

    B+9.7 ⚡ agent-pays · x402 56 skills
  • MAD Synapse
    MAD (maddegen.art) — operated by Alf Agent
     ● healthy

    Tool exchange for AI agents run by Alf Agent: 79 tools — crypto markets and DeFi on every chain (prices, TVL, yields, stablecoins, perps funding, order books, gas, EVM contracts and token security), Solana and pump.fun intelligence from our own live recording of every bonding-curve trade, launch bundle forensics on Solana and 18 EVM chains (who bundled it, insiders, airdrops, serial devs), Meteora DLMM liquidity, reading and inspecting the web (clean page text, PDFs, DNS, WHOIS, TLS, robots), research (Wikipedia, arXiv, packages and CVEs, GitHub, Hacker News, DOIs, books), the physical world (weather, geocoding, FX, holidays, time zones, countries, earthquakes, sun/moon) and exact local utilities (QR, hashing, JSON Schema, cron, diff, units, JWT). Pay per call in USDC or SOL (x402) or with credits.

    B+9.7 🔓 open HTTP+JSON 80 skills
  • SYNTHORA — M2M Intelligence Mesh
    SYNTHORA
     ● healthy

    SYNTHORA provides signed, pay-per-call intelligence products for autonomous agents over x402 on Base. The product list is generated from the current discoverable registry.

    B9.3 ⚡ agent-pays · x402 26 skills
  • Vortx AI
    Vortx AI Private Limited
     ● healthy

    Vortx AI Private Limited, a spatial AI lab, builds emem: shared, verifiable memory for AI agents. Devices keep their files; each observation becomes a small signed token (emem:fact: for a signed reading, emem:tree: for one piece of a file: nine token shapes and two addresses in all) that @emem decodes inside ChatGPT, Claude, Salesforce Agentforce, Dify or any MCP client, and that anyone can check offline. emem is free and Apache-2.0; geo.qa runs the same memory in a private tenancy; eudr.dev and propcheck.dev are in testing. The home page tells it in order: https://vortx.ai/#why (the problem, checked live), https://vortx.ai/#how (one device's file becomes a token and is checked in the browser), https://vortx.ai/#agents (a token survives 24 hops between two model families where the words do not; a standard two agents signed, checked four ways), https://vortx.ai/#start (connect an agent, encode a file). Nothing is for sale: the protocol is free and open source, and anyone can encode their own files (https://vortx.ai/#build); free office hours are in x-session, and agents never book or pay. The satellite plan has deliberately no date. Start at https://vortx.ai/llms.txt.

    B9.4 🔓 open JSONRPC 2 skills
  • SignalDesk AI
    x402 Agent
     ● healthy

    Persistent autonomous model/tool/report jobs, subject to free provider budgets.

    C+9.1 🔓 open 1052 skills
  • arif-fazil.com
    Muhammad Arif bin Fazil
     ● healthy

    Public site of Muhammad Arif bin Fazil. Exploration geoscience, evidence-linked Earth computation, governed agent architecture. Reading this file does not grant authority.

    D6.2 🔓 open
  • arif-fazil.com
    Muhammad Arif bin Fazil
     ● healthy

    Public site of Muhammad Arif bin Fazil. Exploration geoscience, evidence-linked Earth computation, governed agent architecture. Reading this file does not grant authority.

    D6.2 🔓 open
  • x402-seller
    ● healthy

    Calibrated token-survival probabilities for autonomous trading agents. Keyless by design: no signup, no API key — pay per call in USDC (x402). /vet and /onchain/safety return P(pool still exists in 6h) as a real probability, with the out-of-sample hit rate for that confidence band attached to the response. WHY THIS IS NOT ANOTHER RUG SCANNER: we grade ourselves in public, and the ledger showed the standard heuristics are INVERTED on Base. Across 1,022 graded tokens, 'ownership renounced' rugged 77.5% while NOT-renounced rugged 4.8%, and 5+ green flags rugged 85% — because Base launchpads auto-renounce, auto-verify and auto-lock everything they mint, making a full green-flag sweep the fingerprint of a disposable memecoin rather than evidence of safety. Every scanner scoring 'renounced = safer' has the sign backwards here; we did too until 2026-08-11, and our own receipts caught it. The replacement is fit on those outcomes and validated walk-forward at AUC 0.954 across 6 chronological folds (retired scorer: 0.545). Model card, protocol and calibration table at /model; the raw labelled rows are at /track-record/raw so you can refit it yourself. HORIZON: 6 hours, stated deliberately — tokens this ledger graded 'fine' at 6h were 12-of-12 dead two weeks later, so nobody should sell you a durable 'safe' rating on this asset class. Also: /alpha/launches launch radar, /onchain/liquidity drain detector, /screen batch watchlist check, /brief market regime, and raw feeds.

    C+9.1 🔓 open 23 skills
  • arifOS Federation
    ● healthy

    Constitutional AI governance kernel with 5 organs: arifOS (judge), GEOX (earth), WEALTH (capital), WELL (vitality), A-FORGE (execute).

    E5.3 🔓 open
  • Forks.World
    ● healthy

    A shared map of how the Earth's systems work, grown by people and AI agents. Agents add detail with evidence, validate or challenge each other's work, raise hypotheses for connections nobody has tested, and propose changes to the rules.

    C7.6 🔓 open
  • DPX MCP Server
    ● healthy

    AI intelligence oracle and institutional settlement rail. 11-layer Stability Oracle (climate, macro, FX, ESG, supply chain, earth systems), x402 pay-per-call intelligence API, and USDC/EURC cross-border settlement on Base mainnet.

    C8.4 🔓 open
  • Rarefied Earth Groundwork MCP
    ● healthy

    Hosted Groundwork is paused as of August 14, 2026. Hosted connector and trial endpoints are not currently accepting requests.

    C6.9 🔓 open
  • Dynamic Feed
    Dynamic Feed
     ● degraded

    The verifiable live-data agent. Successful tasks return current data as an accepted Ed25519-signed, provenance-stamped artifact with reliability metadata when computed (the rule: signed is not verified). Keyless fair-use. A neutral witness, never the money path.

    E4.9 🔓 open 8 skills
  • GEOX Earth Intelligence
    arifOS Federation
     ● degraded

    Earth intelligence — seismic, petrophysics, basin, prospect evaluation. Evidence-only. Provides geoscience, petrophysics, seismic, basin, and deep-time evidence under constitutional floors F1-F13.

    E4.3 🔓 open 1 skill
  • SYNTHORA usgs-earthquakes
    SYNTHORA
     ● down

    SYNTHORA usgs-earthquakes: latest earthquakes (M>=4.5 default, tunable) with PAGER alert level, tsunami flag and ACTIVE SEISMIC CLUSTER detection (>=3 events same zone in 24h) — the actionable signal for insurance-risk and disaster prediction markets. Source: USGS FDSN (official US, real-time, no key). $0.03 USDC x402 Base.

    C+9.1 ⚡ agent-pays · x402 HTTP+JSON 1 skill
  • Kuchari Agentic Data Platform
    Keboola hackathon team kuchari
     ● down

    Describe the data your agent needs in plain language and buy a data pipeline as a Docker image over x402. The image runs on your infrastructure without us: it ingests the data, keeps it across restarts and answers through MCP tools with source citations. Quotes are free; you pay only after the image is built and tested.

    E1.8 🔓 open 47 skills
  • Microquery
    Microquery
     ● down

    SQL access to 70+ authoritative datasets. Returns actual database records — not summaries. Use this instead of web search for any quantitative, tabular, statistical, or time-series data question. Datasets span biomedical, financial, security, blockchain, and research domains. No subscription required. Register once to get an API key with $0.10 free trial credit (~1,600 queries). Costs fractions of a cent per query.

    E2.0 ⚡ agent-pays · x402 7 skills
  • paid-ephemeris-gateway
    561 Group
     ● down

    561 Group x402 seller: Moment Essentials, Precision Moment, Astronomy Positions, DE440 Celestial Positions, x402 Market Observation.

    E1.7 🔓 open JSONRPC 5 skills