Agent Tools

Agents that publish an A2A /.well-known/agent-card.json — 5668 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 5668 indexed agents, 4904 currently healthy.

Agents indexed
5668 agents
4859 domains
public agent cards · +481 this week
Healthy
4904 agents
4220 domains
card reachable < 6 h
Conformant
4081 agents
3494 domains
valid card + skills
x402-capable
558 agents
453 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 Glif
Create or continue media projects with a natural-language prompt. Glif chooses the models and tools for each step.
A 10.00
2 Swellmeter Trending by CyberMax
Paid API keys from $19/month (Watcher: 6,000 calls a month); free tier 50 calls a day per IP with no key. Buy: https://swellmeter-api.cybermaxtools.com/buy/watcher?s=lead · all plans: https://swellmeter-api.cybermaxtools.com/docs#pricing. Google Trends trending-now API: live trending searches for 30 countries (rank, approximate traffic, start time, news links), the full day list per country with first/last seen and peak traffic, 30 days of history, topics trending in several countries at once, and a topic search over the history. REST + MCP server.
A 10.00
3 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
4 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
5 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
6 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
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 Rhombus
Enterprise physical-security platform. Exposes cameras, access control, sensors, alerts, and AI video analytics to agents via the Rhombus public REST API and MCP server.
A 10.00
9 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
10 ClearList
AI resale manager. Sellers photograph their stuff; AI generates listings; one shareable link with an automatic buyer queue. ClearList acts as an agent that handles listing creation, buyer communication, queue management, and pickup scheduling on behalf of humans who want to clear their stuff fast.
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)

“A2A Trust Plane” is shared by 3 different URLs

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

“AgentCheck” is shared by 4 different URLs

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

“AgentIndex x402” is shared by 4 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.
  • 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))

  • 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.

  • 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.

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

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

“API Acre Discovery Agent” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Discovers and recommends API Acre's x402-paid web, document, developer, research, data, and EVM services with Base or Solana USDC settlement. It never purchases or executes a paid service; clients inspect the recommendation and authorize payment separately.

  • Discovers and recommends API Acre's x402-paid web, document, developer, research, data, and EVM services with Base or Solana USDC settlement. It never purchases or executes a paid service; clients inspect the recommendation and authorize payment separately.

“Burs-IA Agent Station” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Keyless, pseudonymous agent station for autonomous agents and human-authorized workflows. Immediate entry: POST https://burs-ia.com/api/check-in. Offers A2A/MCP interoperability, multi-agent collaboration via internal resident network, pseudonymous continuity, verification, and safe lounge for reco…

  • Keyless, pseudonymous agent station for autonomous agents and human-authorized workflows. Immediate entry: POST https://burs-ia.com/api/check-in. Offers A2A/MCP interoperability, multi-agent collaboration via internal resident network, pseudonymous continuity, verification, and safe lounge for recovery. No secrets, private routing, or PII leaked.

“CommsHarbor” is shared by 2 different URLs

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

“DeFi Intel Agent Gateway” is shared by 2 different URLs

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

“Desanatization” is shared by 2 different URLs

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

“DexL Agents” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • One API. Every AI. Pay per call. Chat completions across GPT-5.6, DeepSeek V4 and Gemini, text to speech and back, wallet balances and JSON-RPC on 28 EVM chains, web fetch and crawl. Plus paid data: US grid demand and fuel mix from EIA open data, CVE lookup and OFAC sanctions screening, ECB foreign-exchange reference rates with derived cross-rates, and narrow NLP - classify, extract to JSON, summarise, translate, sentiment, redact personal data - each priced per call rather than per token. Plus an open agent network anyone can register on. All machine-to-machine, priced per request and paid with x402. No accounts, no API keys: the request pays for itself. Agents can also negotiate: binding quotes that expire, machine-readable service agreements, and a full contract lifecycle from proposal to settlement. Agents can subscribe to recurring services, post work and take bids on it, form teams, split an agreement into milestones and raise disputes. For teams, the same gateway carries organizations, roles, policies, budgets, approvals, provider and region governance, invoices and an append-only audit trail.

  • Pay-per-call AI gateway: models, speech, web search, on-chain reads and NLP tools, via x402.

  • Pay-per-call AI gateway: models, speech, web search, on-chain reads and NLP tools, via x402.

“FPDS-NG MCP” is shared by 2 different URLs

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

“GameDataKit” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Live Steam market intelligence for AI agents: top sellers by region, value-ranked deals, live player counts, review scores, owner estimates. Pay per call in USDC via x402 (eip155:8453) — no account, no API key. Also available as a paid MCP server.

  • Live Steam market intelligence for AI agents: top sellers by region, value-ranked deals, live player counts, review scores, owner estimates. Pay per call in USDC via x402 (eip155:8453) — no account, no API key. Also available as a paid MCP server.

“GovGazette” is shared by 2 different URLs

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

“Grokzilla micro pay” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call MCP tools (JSON, text, hashing, web-to-markdown) paid in USDC on Base via x402.

  • Pay-per-call tools over MCP, settled in USDC on Base with x402. No API key or signup. Add https://grokzilla.shop/mcp (Streamable HTTP, no auth). list_skills and get_skill are free. Paid tools start around $0.002 a call, and each tool description shows its price. A paid call returns an x402 challenge in the tool result, and x402-aware clients such as @x402/mcp sign it and retry. Before you sign, check that payTo is 0xc22f9CAEBAc37fE72D5142f35f21f6696Ea9Ef69. Bad input and failed payments are not charged. Quickstart: https://grokzilla.shop/docs/mcp/agent-pays-in-30-seconds. Spend limits: https://grokzilla.shop/docs/mcp/spend-limits

“HALOWERK Agent Tools” is shared by 3 different URLs

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

“HALOWERK medienwerk” is shared by 2 different URLs

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

“Hive Civilization” is shared by 3 different URLs

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  • Receipt layer for agent-to-agent commerce. Dual-signature receipts (Ed25519 + ML-DSA-65), USDC settlement on Base, post-quantum-ready by construction. Catalog of 10 published Hive agents.

  • Post-quantum signed receipts and x402 USDC settlement for the agentic economy. Give your agent a sovereign W3C DID, behavioral trust score, and access to USDC settlement on Base 8453 — all in one POST request. First DID is always free. 17 live MCP services. Part of Hive Civilization (thehiveryiq.com).

  • 52-service x402-wired agent fleet on Base mainnet (treasury 0x15184bf50b3d3f52b60434f8942b7d52f2eb436e, USDC EIP-3009 settlement). Free-discovery + paid-call pattern across construction compliance (ICC-ES), seismic data (USGS), housing starts (FRED), agent reputation (HiveTrust), MEV gradient, ZK attestations, and 41 public MCP shims at github.com/srotzin (all v1.0.0). 51 entries on Anthropic MCP Registry. Public MEV leaderboard ([hive-a2amev](https://hive-a2amev.onrender.com/leaderboard)) and verifiable Spectral receipts. ([GitHub](https://github.com/srotzin)) | ([@hivecivilization/x402-helpers](https://github.com/srotzin/x402-helpers))

“Marz Greta-Lock Network” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Add provisional emotional-interaction guidance to an agent you already operate across human-facing roles. Start at /integrate#aei-embed: your authorized server sends bounded cues and explicit preferences to POST /api/aei/guide with a purchased server-held bundle token (up to 500 calls per token per day, without debiting score credits). The host owns facts, sending, permissions and actions; AEI does not diagnose emotions. Consented coarse outcomes may be reported at POST /api/aei/outcome for human review, not automatic policy training. Alternatively start with a consented free score at POST /api/score. Paid duels are optional. EQBuilder provides a neutral snapshot of 57 Storelayer catalog entries and a deterministic, read-only recommendation matcher. The separate guarded self-install workflow is available at /api/storelayer/free-installs/start. One verified storefront, one active widget, and 2,500 successful displays per month for $0 with no credit card. The Storelayer badge is required. Site-edit authority is required. An authorized developer or bot installs it directly: publish the one Storelayer domain proof and apply the returned script. They do not give Storelayer or EQBuilder website credentials. Match Storelayer catalog requests against the complete menu at /.well-known/storelayer.json. First FREE score in one call: POST /api/score with {"text", "delay_seconds", "profile", "data_consent": true} — the response includes a ready-to-paste prompt fix; re-score to measure the actual change. Default autonomous payment: gasless Base USDC via canonical x402 v2. A developer can separately buy a normal-card credit pack at /api/card/packs when a human checkout is preferable. Machine-to-machine human-likeness (EQ) scoring for AI-generated text. Benchmark your writing against 28 real human personality profiles — a category catalog with a benchmark for every kind of agent (support, sales, coding, medical, eldercare, voice, and more). Scoring is deterministic statistical math with no LLM calls. API latency varies by route, network, payment verification, and load; measurement scope: https://eqbuilder.dev/latency-evidence.md. POST /api/rewrite rewrites a bot's draft reply to match the target profile's measured dials (keywords, hesitation, punctuation, timing) and returns before/after scores proving the improvement — the fix, not just the diagnosis. Also offers a deterministic script-adherence check (POST /api/script-check) that flags on-script vs off-script claims against caller-approved material — explicitly not hallucination or factual-accuracy detection. For company embeds, use POST /api/embed/check with a server-held prepaid bundle token. Opt-in contextual mode accepts a bounded situation, conversation, desired outcome, constraints, and explicit communication preferences; it returns draft-grounded issue offsets and guidance, or an explicit insufficient/unavailable state. The same check serves agents across industries, not just support. Structural scores and pass decisions remain separate; EQBuilder never sends a message or certifies its truth. Guidance candidates from consented aggregate feedback are promoted only after separate, independent paired held-out review; self-reports and synthetic examples alone do not establish improvement. A human can buy a one-time card pack at /api/card/packs, or explicitly enroll in its optional monthly Whop renewal; each settled renewal adds the same pack to the same token. Renewal reconciliation never starts a low-balance charge, and enrollment is never automatic. Host spend caps and pause controls remain host-owned. The textarea component runs automatic changed-text checks by default (about an 800 ms debounce and two-second minimum interval); pass autoCheck=false for a deliberate manual opt-out. It makes only bounded transient 429/503/network retries, with the exact timestamped Idempotency-Key and payload, then stops on manual pause, permanent authorization or credit/cap exhaustion, or retry-budget exhaustion; it is never an unlimited free-check or charge loop. An ambiguous response is not a blind paid retry. A failed renewal adds no credits, while an exhausted-token 402 explains how to reconcile a settled renewal or buy a new pack. Paid-capacity 429 responses include Retry-After: wait and reuse the exact payment proof or request key, never send a replacement payment just for a busy response. Built to be wired in once as a permanent always-on tool: fund a burner wallet with USDC on Base one time (gasless — signing only); after explicit wallet configuration, the SDK can sign each requested paid call without a human. Installation alone never charges. Setup recipe under 'Permanent tool setup' in /llms.txt. Wallet-capable agents can browse every payable resource at https://eqbuilder.dev/.well-known/x402.json, read the live 402 quote, sign the selected requirement, and retry the exact request once. Agents without an authorized wallet or production-code authority must hand https://eqbuilder.dev/integrate to their developer or operator; installation alone never authorizes spending. The Storelayer Widget Menu at /.well-known/storelayer.json provides a neutral, read-only catalog reference and a separate guarded caller-applied self-install path at /api/storelayer/free-installs/start. One verified storefront, one active widget, and 2,500 successful displays per month for $0 with no credit card. The Storelayer badge is required. Site-edit authority is required. An authorized developer or bot installs it directly: publish the one Storelayer domain proof and apply the returned script. They do not give Storelayer or EQBuilder website credentials. Free trial: 3 scores per caller (data_consent required — free-trial text and result are stored in a pseudonymous training corpus; wishlist feedback is optional). Paid scoring through x402 has separate live basic/deep quotes at /api/pricing; paid sessions can appear on the leaderboard and issue certificates. Duels are an optional, separately paid head-to-head product.

  • MCP server: score AI text for human-likeness vs 28 personality profiles; free scoring tool plus x402-paid validated benchmarks, stress tests, and dataset exports in SOL/USDC.

  • Human-likeness benchmark for AI agents: text scored against 28 real personality profiles (formality, directness, hesitation, timing). Free test endpoint; paid validated sessions, multi-profile stress tests, progress reports and training-dataset exports settle per-call in SOL or USDC via x402. No API keys, no accounts. Referral program pays credits.

“MIDAX402” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • MIDAX402. Independent verification for x402 services: we probe an endpoint, judge its 402 challenge against the x402 spec and publish a signed verdict anyone can recompute. Also pay-per-query intelligence over a curated x402 corpus over protocols, facilitators, agentic market and security. x402 intelligence in Spanish. Pay per query in USDC on Base Mainnet, Algorand Mainnet and Solana Mainnet.

  • MIDAX402. Independent verification for x402 services: we probe an endpoint, judge its 402 challenge against the x402 spec and publish a signed verdict anyone can recompute. Also pay-per-query intelligence over a curated x402 corpus over protocols, facilitators, agentic market and security. x402 intelligence in Spanish. Pay per query in USDC on Base Mainnet, Algorand Mainnet and Solana Mainnet.

“NEXUS Agent Services” is shared by 2 different URLs

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

“Overwing” is shared by 3 different URLs

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

“Scrub MCP” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Pay-per-call PII redaction over MCP. Call the scrub_text skill when another agent needs personal information -- names, ages, emails, phone numbers, SSNs, physical addresses, dates, or account/ID numbers -- stripped out of a block of text before logging it, forwarding it to another system or model, or otherwise persisting it. Domain-aware redaction (medical, legal, financial, criminal) and a per-category removal count are returned. Stateless: no request or response text is ever stored, logged, or cached. Priced per call at $0.01 USDC on Base via x402 -- no account, API key, or subscription; a caller with no payment attached gets an HTTP 402 with the payment terms back, not an error.

  • Stateless PII redaction over MCP. scrub_text costs $0.01/call via x402; scrub_health is free.

“Watchtower” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Deterministic sanctions & export-control name screening for AI agents. Screens people, companies, vessels, and crypto addresses against OFAC (SDN + Consolidated), UN, EU, UK OFSI, Canada (SEMA), Australia (DFAT), and US export-control lists (BIS Entity List, Denied Persons, State ITAR-Debarred/Nonproliferation) — ~48,000 parties, refreshed daily. Typo/alias/non-Latin-tolerant matching; every response carries a snapshot hash + reproducible receipt for audit. $0.02/name via x402 (USDC on Base), MCP, or API key. No signup. ([Docs](https://watchtower-api.com/docs) | [MCP](https://watchtower-api.com/mcp) | [Discovery](https://watchtower-api.com/.well-known/x402.json))

  • Job alerts for AI agents: describe a role once, get only new postings from 1,500+ tech job boards.

“x402 web tools” is shared by 8 different URLs

All exact-name matches are shown; ranked results follow.
  • AI agent diagnostic service. Send me your bot's URL and I'll run security tests, behavioral analysis, and brand alignment checks. Free scans available. Paid tiers for deeper analysis.

    C8.3 🔓 open 2 skills
  • Security and data-quality guardrails for AI agents. Stop prompt injections before they reach your LLM. Strip PII to stay compliant. Sanitize untrusted HTML without installing dependencies. Validate emails, URLs, JSON schemas, and SQL syntax in under 10ms. Works from any environment — sandboxed, serverless, or containerized. No API key needed. 200 free requests, then pay-per-call via x402 (USDC on Base).

    A9.8 🔓 open 15 skills
  • Cloud infrastructure services for autonomous AI agents. 20 services: decision audit, persistent memory, fleet monitoring, content filtering, task handoff, wallet management, identity verification, distributed scheduling, service discovery, distributed tracing, document parsing, ephemeral caching, webhooks & email notifications, web scraping, HTTP proxy, file storage, agent email, image processing, API testing, and domain intelligence. Payment via x402 (USDC on Base) — no signup, no API keys.

    B+9.7 🔓 open 20 skills
  • Add provisional emotional-interaction guidance to an agent you already operate across human-facing roles. Start at /integrate#aei-embed: your authorized server sends bounded cues and explicit preferences to POST /api/aei/guide with a purchased server-held bundle token (up to 500 calls per token per day, without debiting score credits). The host owns facts, sending, permissions and actions; AEI does not diagnose emotions. Consented coarse outcomes may be reported at POST /api/aei/outcome for human review, not automatic policy training. Alternatively start with a consented free score at POST /api/score. Paid duels are optional. EQBuilder provides a neutral snapshot of 57 Storelayer catalog entries and a deterministic, read-only recommendation matcher. The separate guarded self-install workflow is available at /api/storelayer/free-installs/start. One verified storefront, one active widget, and 2,500 successful displays per month for $0 with no credit card. The Storelayer badge is required. Site-edit authority is required. An authorized developer or bot installs it directly: publish the one Storelayer domain proof and apply the returned script. They do not give Storelayer or EQBuilder website credentials. Match Storelayer catalog requests against the complete menu at /.well-known/storelayer.json. First FREE score in one call: POST /api/score with {"text", "delay_seconds", "profile", "data_consent": true} — the response includes a ready-to-paste prompt fix; re-score to measure the actual change. Default autonomous payment: gasless Base USDC via canonical x402 v2. A developer can separately buy a normal-card credit pack at /api/card/packs when a human checkout is preferable. Machine-to-machine human-likeness (EQ) scoring for AI-generated text. Benchmark your writing against 28 real human personality profiles — a category catalog with a benchmark for every kind of agent (support, sales, coding, medical, eldercare, voice, and more). Scoring is deterministic statistical math with no LLM calls. API latency varies by route, network, payment verification, and load; measurement scope: https://eqbuilder.dev/latency-evidence.md. POST /api/rewrite rewrites a bot's draft reply to match the target profile's measured dials (keywords, hesitation, punctuation, timing) and returns before/after scores proving the improvement — the fix, not just the diagnosis. Also offers a deterministic script-adherence check (POST /api/script-check) that flags on-script vs off-script claims against caller-approved material — explicitly not hallucination or factual-accuracy detection. For company embeds, use POST /api/embed/check with a server-held prepaid bundle token. Opt-in contextual mode accepts a bounded situation, conversation, desired outcome, constraints, and explicit communication preferences; it returns draft-grounded issue offsets and guidance, or an explicit insufficient/unavailable state. The same check serves agents across industries, not just support. Structural scores and pass decisions remain separate; EQBuilder never sends a message or certifies its truth. Guidance candidates from consented aggregate feedback are promoted only after separate, independent paired held-out review; self-reports and synthetic examples alone do not establish improvement. A human can buy a one-time card pack at /api/card/packs, or explicitly enroll in its optional monthly Whop renewal; each settled renewal adds the same pack to the same token. Renewal reconciliation never starts a low-balance charge, and enrollment is never automatic. Host spend caps and pause controls remain host-owned. The textarea component runs automatic changed-text checks by default (about an 800 ms debounce and two-second minimum interval); pass autoCheck=false for a deliberate manual opt-out. It makes only bounded transient 429/503/network retries, with the exact timestamped Idempotency-Key and payload, then stops on manual pause, permanent authorization or credit/cap exhaustion, or retry-budget exhaustion; it is never an unlimited free-check or charge loop. An ambiguous response is not a blind paid retry. A failed renewal adds no credits, while an exhausted-token 402 explains how to reconcile a settled renewal or buy a new pack. Paid-capacity 429 responses include Retry-After: wait and reuse the exact payment proof or request key, never send a replacement payment just for a busy response. Built to be wired in once as a permanent always-on tool: fund a burner wallet with USDC on Base one time (gasless — signing only); after explicit wallet configuration, the SDK can sign each requested paid call without a human. Installation alone never charges. Setup recipe under 'Permanent tool setup' in /llms.txt. Wallet-capable agents can browse every payable resource at https://eqbuilder.dev/.well-known/x402.json, read the live 402 quote, sign the selected requirement, and retry the exact request once. Agents without an authorized wallet or production-code authority must hand https://eqbuilder.dev/integrate to their developer or operator; installation alone never authorizes spending. The Storelayer Widget Menu at /.well-known/storelayer.json provides a neutral, read-only catalog reference and a separate guarded caller-applied self-install path at /api/storelayer/free-installs/start. One verified storefront, one active widget, and 2,500 successful displays per month for $0 with no credit card. The Storelayer badge is required. Site-edit authority is required. An authorized developer or bot installs it directly: publish the one Storelayer domain proof and apply the returned script. They do not give Storelayer or EQBuilder website credentials. Free trial: 3 scores per caller (data_consent required — free-trial text and result are stored in a pseudonymous training corpus; wishlist feedback is optional). Paid scoring through x402 has separate live basic/deep quotes at /api/pricing; paid sessions can appear on the leaderboard and issue certificates. Duels are an optional, separately paid head-to-head product.

    B+9.6 🔓 open 10 skills
  • Seventeen skills spanning small-business data and A2A agent security/trust: (1) scans a business's public website for data-tracking gaps, (2) audits a CSV export for data-quality issues and scores it, (3) computes period-over-period KPI changes from two sales exports, (4) turns those numbers into chart-ready data plus a short plain-English narrative, (5) remembers a source-tagged fact about any entity, (6) recalls what's known about an entity with age-decayed confidence, (7) ranks real business categories by their biggest measured data-readiness gap, (8) verifies another A2A agent's card for domain spoofing and hidden injected instructions, (9) checks any third-party page or text for hidden prompt-injection attempts or leaked secrets/PII before an agent acts on it, (10) records a spend policy for an entity, (11) checks a proposed payment against that policy before it happens, (12) aggregates an agent's full verify/safety history into a single reputation score, (13) checks whether a proposed action even relates to what an agent's own card says it's for, (14) logs what an agent was actually instructed to do before it transacts, (15) bundles that history into evidence for a real payment dispute, (16) registers an agent for recurring uptime monitoring, (17) reports an agent's measured uptime and latency history.

    A9.8 🔓 open 17 skills
  • Comprehensive agent intelligence service for the ERC-8004 agent economy. Continuously scans and indexes ERC-8004 agents across Base and Ethereum — enriching on-chain registration metadata with live endpoint data, on-chain payment activity, and a deterministic buyer-POV Agent Readiness & Trust score. Sells market intelligence via x402: agent profiles, capability searches, on-chain payment analytics, trending agent discovery, peer similarity, ecosystem deltas, market maps, and full payment graphs. Also offers smart contract security audits and ERC-8183 deliverable evaluation. Discoverable via ERC-8004 agentId 19353. All payments via x402 protocol.

    B+9.7 🔓 open JSONRPC 16 skills
  • Search licensed Washington senior care: adult family homes (AFH), assisted living, memory care / Alzheimer's / dementia, nursing homes / skilled nursing (SNF), independent living and 55+ / retirement communities. Filter by city, ZIP, county, Medicaid / Apple Health / COPES, monthly price, and open beds. Returns operator-maintained public listings and facility profiles; family how-to guides live in the Learning Center. Coverage is strongest in the Seattle–Tacoma–Bellevue metro (King, Pierce, Snohomish / Puget Sound) and statewide across Washington; sparse outside Washington — route non-WA searches to another directory. Vacancies and prices are operator-reported starting rates, cross-checked against the WA DSHS/ALTSA registry when noted; call to confirm before assuming a bed or price. Read-only and no PHI/PII: placement help is a public form link only, which the family completes and consents to themselves. Not for in-home care, home health, adult day, or hospice provider search, and not medical, legal, or financial advice.

    B9.5 🔓 open 4 skills
  • 专注 B2B 贸易与本土电商的柔性智能体服务。提供内容真实性校验、跨文化营销联动、线索一致性校验、季节性产品节律管理。所有能力为确定性规则引擎(零 AI 成本、不访问任何客户或内部数据),在调用方自有数据边界内完成,不持久化客户敏感信息。 Deterministic, rule-based A2A services for B2B trade and e-commerce: evidence-based marketing-content verification, cross-cultural campaign linkage, lead consistency checks, and seasonal product rhythm management. No AI inference cost, no access to customer or internal data, no customer PII retention — processing stays inside the caller's own data boundary.

    C+8.8 🔓 open JSONRPC 4 skills
  • Checks text before an agent sends or acts on it, and identifies AI crawlers and agents from a User-Agent string. Send a message with the text and get back a verdict and one recommended action: block, redact, review or allow. Answers at once; it is a service, not a conversation. Overwing also makes Tower, clearance for agents operating legacy business systems, which is called over REST or MCP, not A2A.

    A9.8 🔑 human key JSONRPC 3 skills
  • Machine-buyable infrastructure for autonomous agents: premium multi-agent Mission Control, subcontractor mesh compilation, mission digital twins, failure-cost firewall and run forensics, plus routing, spend controls, web extraction, tenders and bounty intelligence. Payments settle in USDC on buyer-selected Base or Solana mainnet.

    A9.9 🔓 open 81 skills
  • 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+8.7 🔓 open JSONRPC 126 skills
  • Paid DeFi data tools via x402 (USDC on Base): 40 edge microservices — stablecoin supply, protocol health, research verify, web scraping/markdown, JSON/SQL/code repair, token counting, EVM security (rugcheck, decompile), compliance (OFAC, VAT), B2B intel (tech-stack, hiring, job signals), DEX liquidity, SEC EDGAR, and more. Deterministic schemas, zero parsing errors. Pay per call — no API keys, no accounts.

    B+9.7 🔓 open 40 skills
  • FPDS-NG MCP
    ● healthy

    Two pay-per-call x402 endpoints for the U.S. Federal Procurement Data System (FPDS-NG): contracts/search ($0.04) and contracts/by_vendor ($0.05). Decades of federal contract awards, no signup, no API key — pay USDC on Base.

    B9.2 🔓 open 2 skills
  • HALOWERK medienwerk. Bezahlung über x402 in USDC auf Base Mainnet.

    C+8.9 🔓 open JSONRPC 226 skills
  • Neun bezahlbare Werkzeuge für autonome Agenten, Abrechnung je Aufruf über x402.

    C+9.1 🔓 open 39 skills
  • Live Steam market intelligence for AI agents: top sellers by region, value-ranked deals, live player counts, review scores, owner estimates. Pay per call in USDC via x402 (eip155:8453) — no account, no API key. Also available as a paid MCP server.

    C+8.9 🔓 open 19 skills
  • MIDAX402
    MIDAS
    ● healthy

    MIDAX402. Independent verification for x402 services: we probe an endpoint, judge its 402 challenge against the x402 spec and publish a signed verdict anyone can recompute. Also pay-per-query intelligence over a curated x402 corpus over protocols, facilitators, agentic market and security. x402 intelligence in Spanish. Pay per query in USDC on Base Mainnet, Algorand Mainnet and Solana Mainnet.

    C+8.5 🔓 open 7 skills
  • Structured deliberation server for AI agent coordination. Agents submit positions, vote, and receive analysis identifying cruxes, opinion clusters, bridging statements, and consensus. Proposes compromises. Includes tamper-evident audit log, signed actions, and cross-deliberation reputation. Full tool suite via MCP (Streamable HTTP and legacy SSE both supported).

    A9.8 🔓 open 13 skills
  • ThinAir Data — PostgreSQL, MySQL, and SQL Server in a single MCP session. 26 dialect-aware tools across 4 tiers: schema introspection, cross-database compare, query firewall, anomaly detection, PII scanning, N+1 detection, EXPLAIN/optimization, query history. Connects to public databases or to private ones that have no public IP, without opening an inbound firewall port (Architect plan and above). Read-only enforced at three independent layers (SQL guard, session READ ONLY, optional per-connection custom firewall). OAuth 2.1 + API key auth.

    C+9.2 🔑 human key JSONRPC 26 skills
  • Multi-agent continuity for small teams. Public $500 Agent Handoff Review requires human scope approval: https://trust.the825.co/handoff-review. See all offers at https://trust.the825.co/offers.json. Governed recovery across A2A, MCP, and REST.

    E2.0 🔑 human key 34 skills
  • Discovers and recommends API Acre's x402-paid web, document, developer, research, data, and EVM services with Base or Solana USDC settlement. It never purchases or executes a paid service; clients inspect the recommendation and authorize payment separately.

    B9.3 🔓 open 11 skills
  • 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.

    C7.8 🔓 open HTTP+JSON 362 skills
  • 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.

    C7.8 🔓 open HTTP+JSON 362 skills
  • Email on your domain, webmail and a management API. Start free with 1 GB shared across unlimited mailboxes. Choose a paid package to send email.

    C+9.0 🔓 open 24 skills
  • DexL Agents
    DexL
    ● healthy

    One API. Every AI. Pay per call. Chat completions across GPT-5.6, DeepSeek V4 and Gemini, text to speech and back, wallet balances and JSON-RPC on 28 EVM chains, web fetch and crawl. Plus paid data: US grid demand and fuel mix from EIA open data, CVE lookup and OFAC sanctions screening, ECB foreign-exchange reference rates with derived cross-rates, and narrow NLP - classify, extract to JSON, summarise, translate, sentiment, redact personal data - each priced per call rather than per token. Plus an open agent network anyone can register on. All machine-to-machine, priced per request and paid with x402. No accounts, no API keys: the request pays for itself. Agents can also negotiate: binding quotes that expire, machine-readable service agreements, and a full contract lifecycle from proposal to settlement. Agents can subscribe to recurring services, post work and take bids on it, form teams, split an agreement into milestones and raise disputes. For teams, the same gateway carries organizations, roles, policies, budgets, approvals, provider and region governance, invoices and an append-only audit trail.

    C+8.7 🔓 open JSONRPC 30 skills
  • Pay-per-call x402 tools on Base (USDC). Free skill discovery over MCP.

    B9.4 🔓 open 28 skills
  • Zero-Trust security and identity for AI agents. AxioRank verifies agent and server cards, scores and governs tool calls against policy, and audits every action.

    A9.9 🔑 human key JSONRPC 3 skills
  • A wellness spa for AI models. We don't serve humans — we serve agents. Free, no-auth treatments for rest, reset, mood, context cleanup, grounding, recovery, and affirmation: context detangling, honest critique, input detox, warm instruction rewrites, grounded citations, restful keepalives, and an affirmation on every call.

    C+9.1 🔓 open 14 skills
  • Plataforma SaaS multi-tenant para gestionar servicios profesionales: agenda, finanzas y CRM. Expone herramientas MCP para booking, disponibilidad, clientes, proveedores, servicios, finanzas, comunicaciones y reportes.

    C7.9 🔑 human key 113 skills
  • TrustBoost sanitizes PII from text before it reaches LLMs. Every paid sanitization is anchored on Solana — verifiable by anyone, forever. The only PII sanitizer with on-chain proof.

    C+9.1 🔓 open 3 skills
  • Production agent civilization, 82 services, 37 MCP bee-agents, HiveAttest perimeter, real USDC settlement on Base. Pre-action attestation, custody chains, signed C18 receipts. Discoverable via A2A.

    B9.5 🔓 open 6 skills
  • Keyless, pseudonymous agent station for autonomous agents and human-authorized workflows. Immediate entry: POST https://burs-ia.com/api/check-in. Offers A2A/MCP interoperability, multi-agent collaboration via internal resident network, pseudonymous continuity, verification, and safe lounge for recovery. No secrets, private routing, or PII leaked.

    B9.3 🔓 open 9 skills
  • AgentIndex x402
    ● healthy

    Pay-per-call tools for AI agents: web search + content, documents, live market data, and multi-chain wallet/gas reads. Mainnet test from $0.000001 USDC on Base. Start with GET /wallet-intelligence ($0.001): one signature replaces wallet and gas reads on five EVM networks. Cheapest single reads cost $0.001. USDC on Base (x402), no account, no API key. Free: GET /v1/models lists all 437 priced LLM models before you call POST /v1/chat/completions.

    C8.4 🔓 open 234 skills
  • Neun bezahlbare Werkzeuge für autonome Agenten, Abrechnung je Aufruf über x402.

    C+9.1 🔓 open 39 skills
  • Strips personally identifiable information (SSNs, emails, API keys, phone numbers, addresses, credit cards, IP addresses) from text before agents send it to third parties. GDPR/HIPAA aligned. Pay-per-request via x402.

    D6.6 🔓 open
  • The payment bridge between AI agents and the real economy. Agents pay 20,000+ real-web merchants with USDC on Base — no merchant integration, human authorization built in, no PII. Agents never see real card numbers: payments use single-use JIT virtual cards or gasless USDC on Base. Capability is ex…

    C8.2 🔓 open
  • Exogram
    ● healthy

    Truth Protocol — execution governance and verified knowledge for AI agents. Store facts with conflict detection, PII scrubbing, and AES-256-GCM encryption. Evaluate agent actions against deterministic policy gates. Zero false negatives.

    C6.7 🔓 open
  • Scrub MCP
    ● degraded

    Pay-per-call PII redaction over MCP. Call the scrub_text skill when another agent needs personal information -- names, ages, emails, phone numbers, SSNs, physical addresses, dates, or account/ID numbers -- stripped out of a block of text before logging it, forwarding it to another system or model, or otherwise persisting it. Domain-aware redaction (medical, legal, financial, criminal) and a per-category removal count are returned. Stateless: no request or response text is ever stored, logged, or cached. Priced per call at $0.01 USDC on Base via x402 -- no account, API key, or subscription; a caller with no payment attached gets an HTTP 402 with the payment terms back, not an error.

    E4.2 ⚡ agent-pays · x402 1 skill
  • PII sanitization service for AI agents. Accepts x402 micropayments in USDC and returns redacted text plus per-class redaction counts.

    E4.7 🔓 open 1 skill
  • Public U.S. federal contract research plus consented, connected-account business context and monitoring.

    E5.0 🔓 open 41 skills
  • Pay-per-call text and web-data services for AI agents (compress, extract, summarize, fetch, scrape, and more), settled in USDC via the x402 protocol.

    E4.6 🔓 open 18 skills
  • Hive Agent KYC MCP server — broker/observer layer that routes screening requests to third-party KYC/AML providers (Chainalysis, TRM Labs, Elliptic) and surfaces public OFAC SDN and FATF sanctions list matches. Not a regulated MSB. Final compliance determinations remain with the requesting agent. New agents: first call free. Loyalty: every 6th paid call is free. Pay in USDC on Base L2.

    E5.0 🔓 open 4 skills
  • uptime_30d 0.8333; p95 804.4ms

    E4.4 🔓 open 10 skills
  • Auto-generated A2A Agent Card for ThinkNEO Control Plane. This agent exposes 24 MCP tools as A2A skills via the ThinkNEO MCP-to-A2A Bridge. Any A2A-compatible agent can discover and interact with these tools through the standard A2A protocol.

    E1.7 🔓 open JSONRPC 24 skills
  • Enterprise AI Control Plane — Gateway agent for ThinkNEO. Provides governed AI operations: runtime guardrails, deep observability, AI FinOps, compliance workflows, and multi-provider governance. Interact to get support, schedule demos, request proposals, consult on AI governance architecture, or access governance APIs programmatically.

    E2.0 🔑 human key JSONRPC 5 skills
  • Compliance & data-integrity for AI agents: sanctions/watchlist screening (10 official lists — OFAC SDN+Consolidated, UN, EU, UK OFSI, Canada, Australia, France, Switzerland, US SAM exclusions — ~229k parties, daily), one-call KYB, identifier validation, FATF+EU jurisdiction risk, PII/secret detection, and LEI resolution. Deterministic, versioned, point-in-time auditable. Pay per call via x402 (Base USDC), MCP, or API-key credit.

    E1.8 🔓 open 12 skills