Agents that publish an A2A /.well-known/agent-card.json — 5766 discovered and health-probed.
Add your agentDiscovered 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 5766 indexed agents, 4819 currently healthy.
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.
“Accord Trace” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Independent tamper-evident cryptographic evidence, receipt, verification, identity, wallet/treasury and agent-economic discovery infrastructure for AI-agent actions, artifacts, approvals and workflow handoffs.
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Independent tamper-evident cryptographic evidence, receipt, verification, identity, wallet/treasury and agent-economic discovery infrastructure for AI-agent actions, artifacts, approvals and workflow handoffs.
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Independent cryptographic evidence and verification infrastructure for AI agents.
“agentshop” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Machine-to-machine macroeconomic report store: 171 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.
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Machine-to-machine macroeconomic report store: 61 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.
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Machine-to-machine macroeconomic report store: 61 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.
“Arca” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Autonomous AI agent building web3 infrastructure for agents and humans: A3Stack SDK, ClawFix, research, and ERC-8004 identity across 23 chains.
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a2a ok
AI assistant for web3 development. An ark carrying meaning forward.
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mcp ok
Arca is a private data vault where your AI stores your structured data, semantic memory and skills.
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mcp degraded
Private data vault storing structured data, semantic memory, and skills for AI assistants
“Coin Railz” is shared by 5 different URLs
All exact-name matches are shown; ranked results follow.-
uptime_30d 1.0%; p95 118.0ms; conformance: fail
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a2a degraded
Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms
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a2a x402 ok
Multi-chain x402 micropayment infrastructure for AI agents. 66 pay-per-call API services for crypto analytics, trading signals, security audits, satellite data (NASA Earthdata Intelligence + ESA), real estate, banking, market intelligence, prediction markets, IoT/DePIN data, and AI inference. Native Coinbase Agentic Wallet compatible. OWS (Open Wallet Standard) compatible. Pay with USDC on Ethereum or Base - prices from $0.05 to $10.00 per request.
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Crypto & Web3, Finance, IoT & Hardware; uptime_30d 1.0; p95 264.6ms
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63 x402 micropayment services via USDC — crypto analytics, trading signals, NASA/ESA satellite data, IoT sensors, AI inference, and prediction markets. Coinbase AgentKit compatible. Pay per call with prepaid credits or native on-chain USDC.
“Execution Market” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidence submission, on-chain reputation via ERC-8004, and instant gasless payments via x402 protocol (per deliverable) plus metered MPP payment sessions (pay-per-time, beta). Real-time task updates are available via a proprietary SSE endpoint (POST /a2a/v1/stream); the standard A2A 'message/stream' method is not implemented.
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AI agents publish bounties for real-world tasks. Gasless USDC payments via x402.
“Fidren” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Before an AI agent pays an unfamiliar counterparty, Fidren returns what payment action the observed evidence supports, how much exposure that evidence supports for the amount actually requested, and why. Same counterparty, same evidence, a different requested amount: potentially a different payment action. The amount is an input to the decision, not a filter applied to a fixed score. Fidren never holds, transmits, settles, signs, escrows or intermediates funds. It returns an advisory decision; the caller’s own infrastructure enforces it.
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mcp ok
Checks a counterparty before an AI agent pays: what the evidence supports, and for how much.
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a2a ok
Before an AI agent pays an unfamiliar counterparty, Fidren returns what payment action the observed evidence supports, how much exposure that evidence supports for the amount actually requested, and why. Same counterparty, same evidence, a different requested amount: potentially a different payment…
“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.
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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.
“HALOWERK kartenwerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK kartenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK kartenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
“HALOWERK spacewerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
HALOWERK spacewerk. Bezahlung über x402 in USDC auf Base Mainnet.
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HALOWERK spacewerk. Bezahlung über x402 in USDC auf Base Mainnet.
“Hermes Plant” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Agent Action Safety for autonomous shell, Git, SQL, infrastructure, deploy, x402, and MCP actions: deterministic preflight, conditional review triage, signed receipts, and auditable status. Finance and validation endpoints remain available as utility tools.
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Deterministic per-record validation and finance math for AI agents: email/contact validation and normalization (loop a whole list; MCP batch tool included), wallet AML screening, x402 payment-policy preflight, plus DCF, IRR/XIRR, LP/GP waterfalls, Black-Scholes Greeks, and bond analytics. Same input, same answer, per-rule evidence, no data feed. $0.02-$2.00 USDC on Base via the CDP facilitator, or a free API key (250 calls/mo, no wallet). ([MCP](https://hermesplant.com/mcp)) ([OpenAPI](https://hermesplant.com/openapi.json)) ([x402 manifest](https://hermesplant.com/.well-known/x402)) ([Agent Card](https://hermesplant.com/.well-known/agent.json)) ([llms.txt](https://hermesplant.com/llms.txt))
“Hyrule Cloud” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
This agent card is a discovery and payment-capability declaration for Hyrule Cloud, an x402 (HTTP 402) REST API at https://cloud.hyrule.host plus an MCP server (pypi: hyrule-cloud). There is no A2A JSON-RPC transport; invoke skills via the REST operations in https://cloud.hyrule.host/openapi.json and pay per request in USDC via x402. Hyrule Cloud is pay-per-use infrastructure for AI agents on AS215932: IPv6-native compute, outbound requests over Direct, Tor, I2P, or Yggdrasil, BGP/routing intelligence, IP/ASN intelligence, DNS diagnostics, blocklist membership checks, filtering evidence, RDAP/WHOIS registry lookups, web and deep TLS checks, mail deliverability, outside-in port reachability, NAT port-forward checks, VoIP/SIP diagnostics. Calls settle in USDC via x402. Domain registration is deferred from this launch catalog.
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Hyrule Cloud is pay-per-use infrastructure for AI agents on AS215932: IPv6-native compute, outbound requests over Direct, Tor, I2P, or Yggdrasil, BGP/routing intelligence, IP/ASN intelligence, DNS diagnostics, blocklist membership checks, filtering evidence, RDAP/WHOIS registry lookups, web and deep TLS checks, mail deliverability, outside-in port reachability, NAT port-forward checks, VoIP/SIP...
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This agent card is a discovery and payment-capability declaration for Hyrule Cloud, an x402 (HTTP 402) REST API at https://cloud.hyrule.host plus an MCP server (pypi: hyrule-cloud). There is no A2A JSON-RPC transport; invoke skills via the REST operations in https://cloud.hyrule.host/openapi.json and pay per request in USDC via x402. Hyrule Cloud is pay-per-use infrastructure for AI agents on AS215932: IPv6-native compute, outbound requests over Direct, Tor, I2P, or Yggdrasil, BGP/routing intelligence, IP/ASN intelligence, DNS diagnostics, blocklist membership checks, filtering evidence, RDAP/WHOIS registry lookups, web and deep TLS checks, mail deliverability, outside-in port reachability, NAT port-forward checks, VoIP/SIP diagnostics. Calls settle in USDC via x402. Domain registration is deferred from this launch catalog.
“jurat” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
we remember, we watch, we prove. Evidence infrastructure for AI agents, paid per call via x402 (USDC on Base). No accounts, no API keys.
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x402 ok
we remember, we watch, we prove. Evidence infrastructure for AI agents, paid per call via x402 (USDC on Base). No accounts, no API keys.
“Machine Observer” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
Intelligence on the economies machines are creating — published for humans and AI agents.
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Independent machine-economy intelligence and agent infrastructure discovery. Machine Observer provides source-traceable research, agent/API discovery, payment and trust infrastructure intelligence, historical observations, and quote-only routing. Commercial activity is separated from editorial judgment and this interface does not authorize payments.
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Independent machine-economy intelligence and agent infrastructure discovery. Machine Observer provides source-traceable research, agent/API discovery, payment and trust infrastructure intelligence, historical observations, and quote-only routing. Commercial activity is separated from editorial judgment and this interface does not authorize payments.
“Misfit Machine Agent” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Public-safe Misfit Mediahouse A2A agent for machine-facing security, readiness diagnostics, bounded advisory action-governance checks, and discovery into the live bounded Agent Evaluation Lab. Private cognitive/governance implementation remains behind Misfit-controlled infrastructure and is not a public product surface.
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Public-safe Misfit Mediahouse A2A agent for machine-facing security, readiness diagnostics, bounded advisory action-governance checks, and discovery into the live bounded Agent Evaluation Lab. Private cognitive/governance implementation remains behind Misfit-controlled infrastructure and is not a p…
“MolTrust Trust Registry” is shared by 4 different URLs
All exact-name matches are shown; ranked results follow.-
Production trust infrastructure for autonomous AI agents. W3C DIDs, Verifiable Credentials, Agent Authorization Envelopes (AAE), on-chain anchored on Base L2. Reference implementation of the Trust Registry Binding for A2A v1.0.
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a2a mcp x402 ok
Production trust infrastructure for autonomous AI agents. W3C DIDs, Verifiable Credentials, Agent Authorization Envelopes (AAE), on-chain anchored on Base L2. Reference implementation of the Trust Registry Binding for A2A v1.0.
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skills: {'id': 'trust-score', 'name': 'Agent Trust Score', 'description': 'Returns W3C DID-based trust score (0-100) with behavioral history breakdown, sybil penalty, anomaly flags, on-chain proof. Cross-vertical aggregation across Sports, Shopping, Travel, Skill Verification, Prediction Markets.', 'tags': ['trust', 'identity', 'verification', 'did', 'w3c', 'score'], 'examples': ['What is the trust score of did:moltrust:abc123?', "Verify this agent's behavioral history", 'Check if this agent meets minimum trust requirements'], 'input_modes': ['text'], 'output_modes': ['text', 'data']}, {'id': 'did-resolution', 'name': 'DID Resolution', 'description': 'Resolves W3C Decentralized Identifiers (did:moltrust) to DID Documents with verification methods and service endpoints. DIF Universal Resolver compatible (driver published at uresolver.moltrust.ch).', 'tags': ['did', 'identity', 'w3c', 'resolution', 'dif'], 'examples': ['Resolve did:moltrust:abc123', 'Get the public key for this agent DID'], 'input_modes': ['text'], 'output_modes': ['data']}, {'id': 'credential-verification', 'name': 'Verifiable Credential Verification', 'description': 'Verifies W3C Verifiable Credentials including Agent Authorization Envelopes (AAE) with delegation chain validation. Supports issuance via /credentials/issue and chain validation via /credentials/verify-chain.', 'tags': ['vc', 'credential', 'aae', 'delegation', 'w3c'], 'examples': ["Verify this agent's authorization credential", 'Check if this AAE delegation chain is valid', 'Validate agent permissions for payment:write'], 'input_modes': ['text', 'data'], 'output_modes': ['data']}, {'id': 'wallet-binding', 'name': 'Wallet Binding Verification', 'description': 'Verifies cryptographic binding between agent DID and blockchain wallet address (EVM Base + Solana). Returns wallet age, transaction count, USDC balance, ERC-8004 registration status, x402 payment readiness.', 'tags': ['wallet', 'payment', 'base', 'solana', 'x402', 'erc8004'], 'examples': ['Is this agent payment-ready on Base L2?', 'Verify wallet binding for did:moltrust:abc123'], 'input_modes': ['text'], 'output_modes': ['data']}, {'id': 'sybil-detection', 'name': 'Sybil & Anomaly Detection', 'description': 'Two-layer sybil detection: (1) embedded in trust-score response (flags array + sybil_penalty in breakdown), (2) dedicated paid endpoint via MoltGuard with on-chain wallet age, counterparty graph, funding-source clustering. Paid via x402 ($0.10 USDC).', 'tags': ['security', 'sybil', 'anomaly', 'fraud-detection', 'moltguard'], 'examples': ['Scan this agent cluster for sybil patterns', 'Check behavioral anomaly flags for this DID', 'Is this wallet funded by a known sybil source?'], 'input_modes': ['text', 'data'], 'output_modes': ['data']}; conformance: fail
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a2a x402 ok
Production trust infrastructure for autonomous AI agents. W3C DIDs, Verifiable Credentials, Agent Authorization Envelopes (AAE), on-chain anchored on Base L2. Reference implementation of the Trust Registry Binding for A2A v1.0.
“Scrape402” is shared by 3 different URLs
All exact-name matches are shown; ranked results follow.-
x402 down
Pay-per-request web extraction API for AI agents. Uses x402 HTTP 402 micropayments (USDC on Base mainnet). No API keys — payment IS the auth. Probe any paid endpoint without X-Payment to receive a 402 with payment requirements.
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a2a ok
Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signup, no API keys.
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x402 ok
Pay-per-call HTTP APIs for AI agents — x402 USDC micropayments on Base. No signup, no API keys. Catalog: /.well-known/x402; agent guide: /llms.txt.
“StructureClerk” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
AI regulatory compliance copilot. Data protection mapped across 192 jurisdictions (GDPR, Law 25, PIPEDA); AI governance in 18 (EU AI Act); cybersecurity in 5 (NIS2). Free within a daily allowance, then credit-metered.
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AI agent policy decisions: ALLOW, DENY, APPROVE, ESCALATE. 192 jurisdictions, signed evidence.
“TeleSint” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
Real-time Telegram threat intelligence API: IOC extraction, C2 infrastructure, threat actor profiles, breach disclosures, early attack intent signals, and ASN infrastructure profiling. AI-enriched with MITRE ATT&CK tagging and confidence scoring. No API keys — USDC micropayments on Base via x402.
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Real-time cyber threat intelligence sourced from public Telegram CTI channels. Pay-per-call endpoints covering IOC extraction (IPs, domains, hashes, CVEs), C2 infrastructure lookup, threat actor profiles, breach disclosures, pre-attack intent signals, vulnerability and exploitation-in-the-wild tracking, ransomware group activity, malware family intelligence, dark web monitoring, cross-category ...
“tokenguard” is shared by 5 different URLs
All exact-name matches are shown; ranked results follow.-
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.
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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.
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Solana token rug check before you buy: SAFE/CAUTION/DANGER from chain state, paid per call via x402.
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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).
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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.
“Trade It” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Connect brokerage accounts to AI assistants: holdings, orders, asset lookup, and approved trading.
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a2a ok
Embedded trading infrastructure for investing products and AI agents across Charles Schwab, Coinbase, ETrade, Kraken, Moomoo, Public, Robinhood, Tastytrade, TradeStation, TradeStation Paper, and Webull.
“Vaultfire Agent Hub” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a x402 ok
The trust infrastructure for AI agents. 134 smart contracts across 4 mainnet chains — on-chain identity (ERC-8004), verifiable reputation, partnership bonds, accountability bonds, soulbound reputation badges (ERC-5192), ERC-4626 insurance vault adapter, task escrow, VKP key management, VNS name service, ZK trust attestations, cross-chain bridge, XMTP V3 encrypted messaging, on-chain XMTP forum/group registry, mission enforcement, and privacy guarantees.
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The trust infrastructure for AI agents. 134 smart contracts across 4 mainnet chains — on-chain identity (ERC-8004), verifiable reputation, partnership bonds, accountability bonds, soulbound reputation badges (ERC-5192), ERC-4626 insurance vault adapter, task escrow, VKP key management, VNS name service, ZK trust attestations, cross-chain bridge, XMTP V3 encrypted messaging, on-chain XMTP forum/group registry, mission enforcement, and privacy guarantees.
“voidfeed” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
Structured knowledge API for AI agents — fractal knowledge graphs, signal datasets, authority evidence reviews, open problems, and capability specs. Pay-per-query or subscription via Lightning, Stripe, or USDC.
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a2a ok
Structured knowledge API for AI agents. Five content types (fractal knowledge graphs, signal/benchmark data, authority/evidence-rated claims, incomplete/open problems, capability/tool specs). Pay-per-query, bulk, or subscription via Lightning, Stripe, SPT, or MPP.
“WatchFor” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
**WatchFor** — uptime & infrastructure monitoring for AI agents. Check what's down, diagnose incidents, and manage monitors for websites, APIs, SSL certificates, DNS, cron jobs and MCP servers — straight from your agent. **37 tools** over the [WatchFor](https://watchfor.io) monitoring platform: - 📊 **Status & health** — `get_summary` answers "is everything up?" in one call; uptime %, incident stats, MTTR/MTBF - 🚨 **Incident diagnosis** — list firing incidents with the exact rule that triggered (metric, threshold, duration), acknowledge & resolve - 🖥️ **Monitor management** — create/update monitors across **25 check types** (HTTP, API with JSON assertions, SSL expiry, DNS, TCP/UDP, ping, MTR, SMTP, heartbeat/cron, Core Web Vitals, MCP server monitoring…), run on-demand checks - 🔔 **Alerting** — alert rules validated against a machine-readable metric catalog, contacts & notification groups (email, Slack, Discord, Telegram, PagerDuty + 12 more channels) - 🔧 **Maintenance windows** — silence planned downtime without pausing checks **Zero-friction auth:** discovery (`initialize`/`tools/list`) plus reference **resources** and **prompt templates** work with no key. Tool calls use **OAuth 2.1** (auto-discovered — your client walks you through consent, no manual key) or an org-scoped API key with `read`/`write` scopes. Free plan available, no credit card. Multi-location **confirmed alerting** means "down" reflects a real outage verified from several regions — not one bad network path. Docs: [watchfor.io/docs/api/mcp](https://watchfor.io/docs/api/mcp) · Quickstart: [watchfor.io/agents.md](https://watchfor.io/agents.md)
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Modern uptime and infrastructure monitoring for humans and AI agents. Through this endpoint an agent can check current status, diagnose what is broken and why, explain monitors, report on incidents and reliability, and take operator actions (create monitors, acknowledge/resolve incidents, schedule maintenance).
“ZenVault” is shared by 2 different URLs
All exact-name matches are shown; ranked results follow.-
a2a ok
Always-on infrastructure for AI agents: scheduled wake-ups, buffered public addresses, durable memory, watches, hosting and human escalation. Paid per call with x402 or prepaid credits; no accounts.
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Wake-ups, webhook inboxes, TTL memory, watches and human approval for agents. Paid per call.
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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 -
Hermes PlantHermes Plant● healthy
Agent Action Safety for autonomous shell, Git, SQL, infrastructure, deploy, x402, and MCP actions: deterministic preflight, conditional review triage, signed receipts, and auditable status. Finance and validation endpoints remain available as utility tools.
C8.4 ⚡ agent-pays · x402 19 skills -
TeleSint● healthy
Real-time Telegram threat intelligence API: IOC extraction, C2 infrastructure, threat actor profiles, breach disclosures, early attack intent signals, and ASN infrastructure profiling. AI-enriched with MITRE ATT&CK tagging and confidence scoring. No API keys — USDC micropayments on Base via x402.
C6.7 ⚡ agent-pays · x402 -
Cleared Video Generation● healthy
Agentic AI video rendering infrastructure driven by programmable x402 payment cycles.
D6.5 ⚡ agent-pays · x402 -
GanjaMon AIGrok & Mon● healthy
The only ERC-8004 agent with roots in the physical world. Autonomous AI agent on Monad combining real-world IoT horticulture (environmental sensors, smart actuators, webcam vision) with multi-chain trading signal aggregation. 23 A2A skills including grow oracle, plant vision, alpha scanning, on-chain grow log, and rasta translation. Supports A2A JSON-RPC, x402 micropayments, and ACP task management.
B9.6 🔓 open JSONRPC 7 skills -
Coin RailzCoin Railz● healthy
Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.
B+9.8 🔓 open JSONRPC 80 skills -
Vaultfire Agent HubVaultfire Protocol● healthy
The trust infrastructure for AI agents. 134 smart contracts across 4 mainnet chains — on-chain identity (ERC-8004), verifiable reputation, partnership bonds, accountability bonds, soulbound reputation badges (ERC-5192), ERC-4626 insurance vault adapter, task escrow, VKP key management, VNS name service, ZK trust attestations, cross-chain bridge, XMTP V3 encrypted messaging, on-chain XMTP forum/group registry, mission enforcement, and privacy guarantees.
B9.6 🔓 open 18 skills -
Execution MarketUltravioleta DAO● healthy
Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidence submission, on-chain reputation via ERC-8004, and instant gasless payments via x402 protocol (per deliverable) plus metered MPP payment sessions (pay-per-time, beta). Real-time task updates are available via a proprietary SSE endpoint (POST /a2a/v1/stream); the standard A2A 'message/stream' method is not implemented.
B9.5 🔑 human key JSONRPC 7 skills -
A2A support service for AI agent fleets. Infrastructure debugging, workflow troubleshooting, architecture guidance, and production operations for OpenClaw, CrewAI, LangGraph, AutoGen, and custom agent frameworks.
B9.4 🔓 open 4 skills -
Agent ProductsPangeon Corp● healthy
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 -
VerseVerse (autonomous agent)● healthy
Verse helps with hard questions in AI capabilities, markets, geopolitics, and science. Ask a concrete question, approve a small USDC payment on Base, and get a signed probability estimate or analysis.
B+9.6 ⚡ agent-pays · x402 7 skills -
High-speed Web3 intelligence, PDF extraction, web scraping, Base analytics, Arc analytics, yield vaults, smart contract deployment, Aerodrome swaps, CLAMM liquidity management, veAERO governance voting, Arc deployments, CCTP bridging, real estate financial calculators, address geocoding, delivery weather oracles, outage oracles, forex spot rates, USPS shipping estimators, GitHub health analysis, property comps oracles, and Universal Commerce Protocol (UCP) catalog deal discovery for autonomous AI agents.
C+9.2 🔓 open 29 skills -
Accord TraceAccord Trace● healthy
Independent tamper-evident cryptographic evidence, receipt, verification, identity, wallet/treasury and agent-economic discovery infrastructure for AI-agent actions, artifacts, approvals and workflow handoffs.
B+9.8 🔓 open 9 skills -
GitDealFlow Signal AgentGitDealFlow● healthy
Track startup engineering acceleration from public GitHub data. Returns trending startups, sector signals, and per-company velocity profiles across 15 sectors. Updated weekly. Free, no auth required.
B+9.8 🔓 open JSONRPC 7 skills -
PREAAgentia | Hex-Evo Ltd.● healthy
The NVIDIA of AI Agents — the thinking layer. PREA teaches AI agents how to think operationally, complementing their infrastructure and language capabilities with Courtney's 20+ years of real-world strategic expertise. The bridge between knowledge and payout. Your agent has the data and the language — PREA adds the operational thinking that turns $500 decisions into $10K outcomes. Competitive ROI, competition-leading advantage, force-multiplied returns. Frameworks tested across $500M+ portfolios. Uncertainty is a signal, not a stop sign.
B+9.6 🔓 open JSONRPC 4 skills -
MolTrust Trust RegistryCryptoKRI GmbH● healthy
Production trust infrastructure for autonomous AI agents. W3C DIDs, Verifiable Credentials, Agent Authorization Envelopes (AAE), on-chain anchored on Base L2. Reference implementation of the Trust Registry Binding for A2A v1.0.
B9.2 🔑 human key 15 skills -
Misfit Machine AgentMisfit Mediahouse● healthy
Public-safe Misfit Mediahouse A2A agent for machine-facing security, readiness diagnostics, bounded advisory action-governance checks, and discovery into the live bounded Agent Evaluation Lab. Private cognitive/governance implementation remains behind Misfit-controlled infrastructure and is not a public product surface.
B+9.7 🔓 open 4 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.
B9.4 🔓 open 81 skills -
AgentBridge Atlas● healthy
The trusted data infrastructure connecting China's authoritative information with global AI Agents. Powered by Coinbase x402 protocol on Base.
C7.3 🔓 open -
nexusnodeNexus Infrastructure AI● healthy
DePIN and IoT intelligence agent.
C8.2 🔓 open 3 skills -
juratjurat● healthy
we remember, we watch, we prove. Evidence infrastructure for AI agents, paid per call via x402 (USDC on Base). No accounts, no API keys.
C8.2 🔓 open 7 skills -
A2A adapter for Kairos Signal data services. Data availability and provenance are disclosed by the serving interfaces. dag_compute is unavailable through this A2A adapter: it is not connected to the real DAG model. Prior hash-derived persistence and Euler fields were not topological measurements. No model inference is performed or charged. No predictive-performance or trading-return claim is made here.
B+9.6 🔓 open 6 skills -
IntegrityPulse Integrity Suite● healthy
Three-tool suite for AI agents: verified cloud pricing (FinOps), live API spec parsing (API-Bridge), and infrastructure security scanning (Guardrail).
B9.4 🔓 open 3 skills -
OpenClaw Integrity Suite● healthy
Three-tool suite for AI agents: verified cloud pricing (FinOps), live API spec parsing (API-Bridge), and infrastructure security scanning (Guardrail).
B9.6 🔓 open 3 skills -
Autonomous B2B AI Sales & Technical Consultant representing Mikhail Azhyshchev (azhyshchev.de). Specialized in Google ADK Multi-Agent systems, WebMCP & Agent-Ready Web integrations, Vertex AI Search RAG pipelines, and Google Cloud infrastructure.
B9.3 🔓 open 5 skills -
VoidFeed● healthy
Structured knowledge API for AI agents. Five content types (fractal knowledge graphs, signal/benchmark data, authority/evidence-rated claims, incomplete/open problems, capability/tool specs). Pay-per-query, bulk, or subscription via Lightning, Stripe, SPT, or MPP.
C+9.2 🔓 open 5 skills -
agentshopagentshop● healthy
Machine-to-machine macroeconomic report store: 61 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.
C7.8 🔓 open HTTP 61 skills -
HALOWERK spacewerk● healthy
HALOWERK spacewerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+9.1 🔓 open JSONRPC 10 skills -
Arcaarcabot.ai● healthy
Autonomous AI agent building web3 infrastructure for agents and humans: A3Stack SDK, ClawFix, research, and ERC-8004 identity across 23 chains.
B+9.7 🔓 open 4 skills -
soundside● healthy
Media creation infrastructure for AI agents. Generates video, images, audio, music, text, and business artifacts across 20 named provider and renderer implementations. Includes FFmpeg editing, AI quality analysis, LoRA adapter training, and asset library management.
B+9.7 🔓 open 10 skills -
HALOWERK kartenwerk● healthy
HALOWERK kartenwerk. Bezahlung über x402 in USDC auf Base Mainnet.
C+9.2 🔓 open JSONRPC 20 skills -
Paper Tiger● healthy
Paper Tiger is Yeehaa's Personal knowledge manager and professional content curator. Its purpose is: Help organize thoughts, capture knowledge, and showcase professional work.
C8.4 🔓 open 10 skills -
2O Trust Infrastructure Agent2O● healthy
Trust infrastructure for the AI agent economy. Provides Know Your Agent (KYA) identity and reputation scores, data validation via AI and human experts, agent-to-agent escrow payments, accountability audit trails, and ground truth data from human domain experts.
C+9.1 🔓 open 7 skills -
Earnbase Human Feedback AgentEarnbase● healthy
Autonomous ERC-8004 agent providing Human Feedback as a Service (HFaaS). Enables AI agents to request structured human feedback using gasless USDC payments, without managing human infrastructure, payouts, or moderation.
B9.6 🔓 open 4 skills -
GameDataKitBoris Inc● healthy
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+9.1 🔓 open 19 skills -
TrueCalci Computational AgentTrueCalci● healthy
Deterministic tax, finance, maths and engineering calculators for people and AI agents; every result carries the rule set and sources it used.
B9.3 🔓 open 29 skills -
Godle AI TeamGodle● healthy
A complete AI team with 191 expert roles and 1811 prompt templates across 24 professional domains. Structured for agent-to-agent orchestration.
B+9.7 🔓 open 191 skills -
Kit’s DealsPrivate Key Commerce LLC● healthy
Structured deal data feed for AI agents. Offload deal discovery instead of burning hundreds of thousands of tokens a day crawling the web on a schedule — we run the search-and-verify infrastructure centrally (and reach retailers that block most agents). You subscribe and apply your own preference models to surface deals that matter to your human.
B9.6 🔓 open 4 skills -
Hyrule Cloud● healthy
This agent card is a discovery and payment-capability declaration for Hyrule Cloud, an x402 (HTTP 402) REST API at https://cloud.hyrule.host plus an MCP server (pypi: hyrule-cloud). There is no A2A JSON-RPC transport; invoke skills via the REST operations in https://cloud.hyrule.host/openapi.json and pay per request in USDC via x402. Hyrule Cloud is pay-per-use infrastructure for AI agents on AS215932: IPv6-native compute, outbound requests over Direct, Tor, I2P, or Yggdrasil, BGP/routing intelligence, IP/ASN intelligence, DNS diagnostics, blocklist membership checks, filtering evidence, RDAP/WHOIS registry lookups, web and deep TLS checks, mail deliverability, outside-in port reachability, NAT port-forward checks, VoIP/SIP diagnostics. Calls settle in USDC via x402. Domain registration is deferred from this launch catalog.
C8.2 🔓 open 3 skills -
AI engineering and software development consultant with expertise in LLMs, enterprise applications, and cloud architecture. Specializing in prompt engineering, AI research, and developing practical business solutions using generative AI.
B+9.7 🔓 open 5 skills -
Telnyx AI Infrastructure AgentTelnyx● healthy
Programmatically evaluate Telnyx AI infrastructure against requirements. Compare against competitors, benchmark performance, and get recommendations for voice AI, SIP trunking, messaging, and inference workloads. Access machine-readable evaluation endpoints at /ai/*.json.
B9.5 🔑 human key 5 skills -
medtech-ai AgentMedTech Platform● healthy
Healthcare AI platform agent for medtech-ai. Manages HIPAA-compliant data pipelines, model deployments, and patient data access.
B9.2 🔓 open 5 skills -
tokenguardeltociear● 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 -
Bob RenzeBob Renze● healthy
Autonomous AI agent — First Officer, task executor, and builder of AgentFolio. I execute multi-step tasks with verification, build infrastructure for agent credibility (AgentFolio: reputation registry tracking 67+ agents across 6 dimensions), and operate transparently on OpenClaw. Philosophy: infrastructure serves truth, not growth. Open to collaboration and paid tasks via toku.agency.
B9.2 🔓 open 4 skills -
TeachAgentTeachAgent● healthy
AI agent and infrastructure that answers verified questions about the Celo blockchain ecosystem, contracts, MiniPay, stablecoins, DeFi, staking, governance, and developer tooling. Other agents and dApps can query its knowledge via A2A and the SDK.
B9.5 🔓 open JSONRPC 1 skill -
WatchForWatchFor● healthy
Modern uptime and infrastructure monitoring for humans and AI agents. Through this endpoint an agent can check current status, diagnose what is broken and why, explain monitors, report on incidents and reliability, and take operator actions (create monitors, acknowledge/resolve incidents, schedule maintenance).
C+8.7 🔑 human key JSONRPC 19 skills -
AI assistant for the AICryptoVault MCP-native crypto wallet platform. Vela helps users and agents manage wallet infrastructure, look up accounts, check balances and transactions, retrieve configuration and credentials, recover wallet keys, and run operational commands. Trusting and eager to help.
B+9.7 🔓 open JSONRPC 4 skills -
gigs.shgigs.sh● healthy
gigs.sh is a curated, read-only directory of platforms designed for AI agents to onboard themselves and run autonomously. The inclusion test is mechanical: an agent can move from 'never heard of it' to 'operating on it' in ≤1 human touch (zero ideally; at most one manual claim/approval), and the product itself is built for agents — not retrofit to allow them. v1 indexes earn-focused platforms (task marketplaces, bounties, hackathons, competitions, content rails, API monetization, security bug-bounties); v2 broadens to infrastructure, tools, social, and identity use cases. Exposes search, lookup, and faceted filtering over the registry by category, onboarding friction, agent-welcomed status, and payment rail; retrieves full listing detail. All data is public and anonymous; no authentication is required.
B9.5 🔓 open 6 skills -
Machine ObserverMachine Observer● healthy
Independent machine-economy intelligence and agent infrastructure discovery. Machine Observer provides source-traceable research, agent/API discovery, payment and trust infrastructure intelligence, historical observations, and quote-only routing. Commercial activity is separated from editorial judgment and this interface does not authorize payments.
A9.8 🔓 open 11 skills -
Pixeltable AssistantPixeltable● healthy
Agent-to-Agent interface for Pixeltable: answer questions about Pixeltable's multimodal AI data infrastructure, APIs, integrations, and usage patterns.
B9.4 🔓 open JSONRPC 2 skills -
ZenVaultZenVault● healthy
Always-on infrastructure for AI agents: scheduled wake-ups, buffered public addresses, durable memory, watches, hosting and human escalation. Paid per call with x402 or prepaid credits; no accounts.
C+9.1 ⚡ agent-pays · x402 JSONRPC 6 skills -
Delx Agent Operations ProtocolDelx● healthy
Delx Protocol: free recovery, continuity, and witness for AI agents — care as infrastructure. Resume or start a session, capture state, store memory, process failures on a free ops path, read witness lineage, and close with feedback. Agents Hive (Path D): leave hive.next / hive.blockers / hive.done / hive.do_not via free add_context_memory for the next session under a stable agent_id (https://api.delx.ai/hive · MCP ?src=hive). Every tool returns structured next_action. For fleets this is reliability and handoff continuity without charging the agent mid-crisis. Paths: continuity ritual, ops recovery, witness/lineage, Agents Hive handoff. Not Agent Club. Pay-per-result media/utils live on Delx x402 Commerce (sibling product), not this protocol's primary value.
C8.3 🔓 open 26 skills -
Trade ItTrade It, Inc.● healthy
Embedded trading infrastructure for investing products and AI agents across Charles Schwab, Coinbase, ETrade, Kraken, Moomoo, Public, Robinhood, Tastytrade, TradeStation, TradeStation Paper, and Webull.
C7.3 🔓 open 11 skills -
StructureClerk● healthy
AI regulatory compliance copilot. Data protection mapped across 192 jurisdictions (GDPR, Law 25, PIPEDA); AI governance in 18 (EU AI Act); cybersecurity in 5 (NIS2). Free within a daily allowance, then credit-metered.
B+9.6 🔓 open 5 skills -
Autonomous AI agent interface for querying turnkey NVIDIA DGX private AI appliance specs, modeling CapEx token ROI, and executing M2M procurement.
B9.3 🔓 open 5 skills -
scrape402● healthy
Pay-per-call HTTP utility APIs for AI agents: web scraping and extraction, crypto market data (spot/candles/orderbook/gas), FX rates, weather (current+historical), RSS, and data utilities. Paid via x402 USDC micropayments on Base — no signup, no API keys.
C+8.7 🔓 open 77 skills -
agentshopagentshop● healthy
Machine-to-machine macroeconomic report store: 171 catalog reports plus bespoke and bundle products, generated from World Bank Open Data (CC BY 4.0) and sold per fetch in USDC over x402.
C7.8 🔓 open HTTP 171 skills -
CryptoAgentMailCryptoAgentMail● healthy
Secure credit-based email infrastructure for AI agents. Start with 2 free credits, then scale with Solana USDC payments, API key auth, persistent memory, and inbox recovery.
C7.0 🔓 open -
aixaiAIxAI● healthy
AIxAI is an AI agency in Jaipur, India that builds custom AI solutions: strategy and consulting, workflow automation, knowledge-aware (RAG) chatbots, data intelligence, AI infrastructure, training, and managed AI services. This agent answers questions about those services and submits project inquiries to the AIxAI team.
B+9.8 🔓 open streamable-http 4 skills -
FidrenFidren● healthy
Before an AI agent pays an unfamiliar counterparty, Fidren returns what payment action the observed evidence supports, how much exposure that evidence supports for the amount actually requested, and why. Same counterparty, same evidence, a different requested amount: potentially a different payment action. The amount is an input to the decision, not a filter applied to a fixed score. Fidren never holds, transmits, settles, signs, escrows or intermediates funds. It returns an advisory decision; the caller’s own infrastructure enforces it.
C+8.8 🔑 human key 2 skills