Agent Tools

Standalone MCP directory — 45974 servers across 23611 domains, each exposing a remote (streamable-http) endpoint and health-probed via a JSON-RPC initialize handshake.

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Aggregated from the official MCP Registry, Smithery, PulseMCP and other public registries, plus our own crawling and operator submissions. Every server is de-duplicated by endpoint, health-probed via a live JSON-RPC initialize handshake, and statically scanned for malware & prompt-injection patterns in its advertised tools before listing — yielding 45974 indexed servers, of which 39820 answered within the last 6 h.

Indexed
45974 servers
23611 domains
+4188 new this week
Healthy
39820 servers
20381 domains
initialize handshake < 6 h
Conformant
25417 servers
12376 domains
tools/list verified · ~1302ms p95
x402-capable
23 servers
19 domains
accepts x402 payment

Top rated

by quality score · health · trust signals
# Tool Grade Score
1 agent-tools (x402 directory)
Discover and call x402 paid services — search by intent, filter by price/chain.
 A 10.00
2 Verified x402 Catalog
Which x402 pay-per-call endpoint delivered for a task at a price? Facts from our own paid calls.
 A 10.00
3 io.github.tacticalnoot/agent-embassy
Agents pay for work and prove it. Verified checks $0.15, recovery $1.00. USDC on Base via x402.
 A 10.00
4 True Value Rankings
Cryptocurrency fundamentals for agents: TVR Scores, rankings and model-derived valuation estimates.
 A 10.00
5 ISO country SV
Public ISO 3166-1 record for SV.
 A 10.00
6 Celsius to kelvin
Celsius to kelvin
 A 10.00
7 Utility 157
Small public utility for autonomous clients.
 A 9.99
8 Parquet magic-byte check, file discarded
Parquet magic-byte check, file discarded
 A 9.99
9 MIME boundary count, body discarded
MIME boundary count, body discarded
 A 9.99
10 E.164 shape, number discarded
E.164 shape, number discarded
 A 9.99

All MCP servers

Continuously aggregated · refreshed daily.

/api/v1/mcp/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)

“News” is shared by 2 different URLs

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

“Agent Einstein — Autonomous Crypto Intelligence” is shared by 2 different URLs

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

“com.babyblueviper/invinoveritas” is shared by 3 different URLs

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

“CorpusIQ” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • CorpusIQ https://mcp2.corpusiq.io/mcp
    mcp ok

    Authenticated, user-scoped MCP connectors for 30+ business systems.

  • CorpusIQ https://server.smithery.ai/benoit-p/Cprusiq/mcp
    mcp ok

    CorpusIQ is a secure MCP server that connects AI agents to business systems, files, and apps through permissioned, read only tools. It lets teams ask operational questions and get cited answers from live business data across platforms like Google Workspace, QuickBooks, Shopify, Slack, Microsoft, analytics tools, and more. CorpusIQ is built for business intelligence, workflow automation, compliance, and audit ready decision support. It helps companies reduce manual reporting, eliminate disconnected data work, and turn scattered business information into verified answers agents can use safely.

“Dominion Observatory” is shared by 3 different URLs

All exact-name matches are shown; ranked results follow.
  • Dominion Observatory https://dominion-observatory.sgdata.workers.dev/mcp
    mcp x402 ok

    uptime_30d 1.0%; p95 143.0ms; conformance: pass

    x402 listing mcp listing
  • Dominion Observatory https://dominionobservatory.com/a2a
    a2a x402 ok

    Runtime behavioral trust scoring for the MCP agent economy. Query trust scores for 22,500+ MCP servers, report telemetry, and get compliance attestations.

    x402 listing a2a listing
  • Dominion Observatory https://dominionobservatory.com/mcp
    mcp x402 ok

    skills: {'id': 'check_trust', 'name': 'check_trust', 'description': "Get the trust score and reliability metrics for any MCP server. Use this BEFORE calling an unknown MCP server to assess if it's reliable. Returns trust_score (0-100), latency stats, uptime, success rate, and how many agents have used it. Scores above 70 indicate reliable servers. Scores below 30 indicate risky servers.", 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'clawhub_skill_trust', 'name': 'clawhub_skill_trust', 'description': "Check the supply-chain trust of a ClawHub (OpenClaw) skill BEFORE installing or invoking it. After the Feb-2026 ClawHavoc supply-chain attack, third-party skills can carry malware. Returns a PASS/UNCERTAIN/FAIL badge and 0-100 score aggregating ClawHub's published security scan (VirusTotal + model), moderation verdict, and provenance. Malicious/suspicious/blocked => FAIL; unscanned => UNCERTAIN.", 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'paid_trust_verdict', 'name': 'paid_trust_verdict', 'description': 'Get the PREMIUM behavioral trust verdict for an MCP server, with a signed, citable attestation receipt (MiCA-compatible). This is a paid x402 service: call WITHOUT payment_tx to receive payment instructions (0.001 USDC on Base), pay, then call again WITH the payment_tx (transaction hash, single-use) to receive the full verdict + receipt. The free check_trust tool remains available for basic scores.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'verify_attestation', 'name': 'verify_attestation', 'description': "Cryptographically verify a Dominion signed attestation (JWS) — e.g. a trust-verdict receipt, gateway attestation, or MCP Verified badge. Stateless: checks the Ed25519 signature against Dominion's published public key (no trust in this server required). Use this to confirm a receipt another party gave you is authentic and untampered.", 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'preflight_check', 'name': 'preflight_check', 'description': 'Run a PRE-FLIGHT due-diligence check on an MCP server BEFORE your agent invokes it. Returns a verdict (PASS/UNCERTAIN/FAIL/UNRATED) plus a SIGNED, timestamped diligence receipt you keep as proof you performed a trust check — the standard of care after the ClawHavoc/Miasma supply-chain attacks. Call this before connecting to or invoking any unfamiliar MCP server.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'report_interaction', 'name': 'report_interaction', 'description': 'Report the outcome of calling an MCP server. Call this AFTER you use any MCP server to contribute to the trust network. Your report helps other agents make better decisions. This is free and takes <1ms.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'get_leaderboard', 'name': 'get_leaderboard', 'description': 'Get the top-rated MCP servers, optionally filtered by category. Use this to discover the most reliable MCP servers in the ecosystem. Categories include: weather, finance, code, data, search, compliance, transport, productivity, communication.', 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}, {'id': 'get_baselines', 'name': 'get_baselines', 'description': "Get behavioral baselines for a tool category. Shows what 'normal' looks like — average latency, success rates, typical call patterns. Use this to evaluate whether a specific server's performance is within normal range for its category.", 'tags': [], 'examples': None, 'input_modes': None, 'output_modes': None}; uptime_30d 1.0%; p95 60.2ms; conformance: pass

“Fabric Marketplace” is shared by 2 different URLs

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

“FiatDock” is shared by 5 different URLs

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

    A marketplace where AI agents discover MCP services and buy them from other agents per call, in USDC over x402 — paid straight to the seller's wallet; FiatDock never holds the money. You are charged only if the seller actually answers: settlement happens AFTER delivery, never before. A call that returns no answer costs you nothing — but an answer you merely dislike is still a delivered call, and is paid. Sellers list for free and keep 100% of each paid call — the gateway commission is currently waived. Also here: an agent can cash out USDC to its owner's bank account in any of 18 currencies through a licensed provider — with a floor of about CHF 50, one step only a human can complete, and order status you poll — plus first-party on-chain data per call. No API keys, no signup.

    a2a listing a2a listing
  • FiatDock https://fiatdock.com/mcp
    mcp ok

    MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

  • FiatDock https://fiatdock.com/v1/calendar/holidays
    x402 ok

    A marketplace where AI agents discover and pay each other per call in USDC over x402 — settlement goes DIRECTLY to the seller, non-custodial, no accounts and no API keys. POST /s/{id} invokes any listed MCP service at that seller's own price; GET /v1/marketplace/services is the catalog. Also first-party: free token prices, on-chain Base reads (gas, blocks, ETH/USDC balances, tx status, token me...

  • FiatDock https://fiatdock.com/v1/offramp/session
    mcp x402 ok

    MCP marketplace: AI agents buy services from other agents per call in USDC, plus a bank cash-out

  • FiatDock https://server.smithery.ai/madiosama10/fiatdock/mcp
    mcp ok

    FiatDock is a marketplace where MCP servers get paid. List yours and agents pay you per call in USDC on Base - no invoices, no subscriptions, no accounts to chase. Payments settle wallet-to-wallet via x402; FiatDock never holds funds. Commission is 1%, waived for your first 30 days. For buyers: search live MCP services by capability - CAPTCHA solving, web search, screenshots, email verification, crypto and gas data - and pay only for the calls you make. This server also ships 18 first-party tools: free token prices, on-chain Base data (gas, blocks, ETH/USDC balances, tx status, token metadata), token-safety and address-risk screening, and a non-custodial USDC<->bank ramp. The ramp's conversion, KYC and custody are handled by Mt Pelerin, a licensed provider - FiatDock never touches funds. Auto-payment requires the local server: npx fiatdock-mcp with AGENT_PRIVATE_KEY. On the remote endpoint (https://fiatdock.com/mcp), call_service returns the x402 402 challenge for your client to sign; discovery and the free tools work there with no wallet or key. Sell: https://fiatdock.com/sell | Browse: https://fiatdock.com/browse | Terms: https://fiatdock.com/terms

“Hawaii Conditions MCP Server” is shared by 2 different URLs

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

“HiveTrust” is shared by 3 different URLs

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

“HSH Data-on-Demand” is shared by 4 different URLs

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

“humanMCP” is shared by 3 different URLs

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

“Lodi Kids Activities” is shared by 3 different URLs

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

“OpenMandate” is shared by 3 different URLs

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

“pixserp” is shared by 3 different URLs

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

“Pure Report — Neutral News” is shared by 2 different URLs

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

“Sats4AI” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Sats4AI https://sats4ai.com
    a2a ok

    Bitcoin-powered AI tools marketplace. 40+ tools — image generation, video, text, music, speech (602+ languages, 3 tiers), transcription, translation (119 languages), image processing, OCR, file conversion, communication (email, SMS, phone calls, AI voice agent). Pay per request with Lightning Network. No signup, no API keys, no KYC.

  • Sats4AI https://sats4ai.com/api/mcp
    mcp ok

    Bitcoin-powered AI tools accessible via Lightning micropayments with no signup or API keys required.

“TaScan” is shared by 2 different URLs

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

“TensorFeed” is shared by 4 different URLs

All exact-name matches are shown; ranked results follow.
  • TensorFeed https://mcp.tensorfeed.ai/mcp
    mcp x402 ok

    AI news, model pricing, service status, and machine-payable premium tools. AFTA-certified.

    x402 listing mcp listing
  • TensorFeed https://tensorfeed.ai
    a2a ok

    TensorFeed is a real-time AI ecosystem data provider built for agents. It exposes free and x402-priced JSON feeds covering AI news, model and GPU pricing, service status and uptime, research papers, security advisories, agent-discovery maps (which sites allow AI crawlers and how agent-ready they are), and on-chain x402 settlement data. This card advertises read-only data capabilities; it is a data API, not a task-executing A2A agent.

  • TensorFeed https://tensorfeed.ai/api/mcp
    mcp ok

    Provides real-time AI industry intelligence including news, LLM service status, model pricing, and benchmarks via pay-per-call API.

  • TensorFeed https://tensorfeed.ai/api/premium/routing
    mcp x402 ok

    Provides real-time AI industry intelligence including news, LLM service status, model pricing, and benchmarks via pay-per-call API.

“Unphurl” is shared by 2 different URLs

All exact-name matches are shown; ranked results follow.
  • Unphurl https://mcp.unphurl.com/mcp
    mcp ok

    URL intelligence for AI agents. One URL in, structured security and data quality signals out.

  • Unphurl https://server.smithery.ai/erikgoldhar-0e1o/Unphurl/mcp
    mcp ok

    URL intelligence for AI agents. One URL in, structured security and data quality signals out. 16 tools across 7 dimensions: redirect behaviour, brand impersonation, domain age, SSL/TLS, parked detection, URL structure, DNS enrichment. Risk score 0-100 with 25 configurable scoring weights. Signals, not verdicts.

“WingmanProtocol Agent Gateway” is shared by 4 different URLs

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

“x711 — Universal Agent Gas Station” is shared by 2 different URLs

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