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)

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

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

“Colour Memory” is shared by 2 different URLs

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

“Competitive Intelligence MCP Server” 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

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

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

“Instagram MCP Server” is shared by 2 different URLs

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

“LION x402” is shared by 2 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.

“YouTube MCP Server” is shared by 2 different URLs

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

“Youtube Transcript” is shared by 2 different URLs

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