The real catalog of tools for AI agents

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44,737real tools

29,284callable over HTTPS

19,862measured

5,943proven reliable

402MCP.org — HTTP 402 & Agent Payment Registry Reliable (measured) · 100% over 10 checks Does the job (tested) · 10/10

Decode HTTP 402 challenges (L402, x402, MPP) and choose agent payment rails from an open registry.

MCP endpoint : https://402mcp.org/api/v1/mcp · website · measurements and details

x402-audit-mcp Reliable (measured) · 100% over 20 checks Does the job (tested) · 11/11

Audits any URL for HTTP 402 x402 V2 compliance, PAYMENT-REQUIRED headers, Bazaar schema, and MCP.

MCP endpoint : https://x402-audit-72343955726.us-central1.run.app/mcp/x402-audit · measurements and details

AgentDiet A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor Being measured · 100% over 1 checks Real task being tested · 1/1

Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP.

MCP endpoint : https://x402-audit.agentdiet.dev/mcp · website · measurements and details

agents.u.cash Not measured yet

Non-custodial HTTP-402 crypto payments for AI agents. 77-tool MCP server.

Package oci : ghcr.io/udotcash/agents-u-cash-mcp:0.6.7 · measurements and details

agents.u.cash Not measured yet

Non-custodial HTTP-402 crypto payments for AI agents. 79-tool MCP server.

Package oci : ghcr.io/udotcash/agents-u-cash-mcp:0.6.18 · measurements and details

LN Church Agent MCP Not measured yet

Inspect-only HTTP 402 surface classifier. Keyless, no wallet, no signing, no payments.

Package pypi : ln-church-agent · website · measurements and details

meta-stamp-pockets Reliable (measured) · 100% over 42 checks

Attribution and settlement infrastructure for AI agent content access over HTTP 402 and MCP.

MCP endpoint : https://metastampv3-production.up.railway.app/mcp · website · measurements and details

mcp Not measured yet

Trust layer for agent payments (x402, Base): verify agents, risk scores, signed escrow verdicts.

Package npm : 402coffee-mcp · measurements and details

ClawAgent Being measured · 0% over 1 checks

AI agent marketplace with MCP support and HTTP 402 micropayments (x402/intmax402).

MCP endpoint : https://clawagent-production.up.railway.app/mcp/sse · website · measurements and details

A-Pay Protocol Reliable (measured) · 100% over 17 checks

Universal HTTP 402 Micropayment Protocol & Autonomous Economic Settlement Engine for AI Agents

MCP endpoint : https://apay-network.vercel.app/api/mcp · website · measurements and details

x402 Facilitator Proxy Not measured yet

Multi-tenant HTTP 402 infrastructure gateway and stdio MCP server for machine payments.

Package npm : x402-facilitator-proxy · website · measurements and details

discovery-oracle Being measured · 0% over 2 checks

Discover live agent APIs, ranked endpoints, trust, payment telemetry, and x402 surfaces.

MCP endpoint : https://api.402.bot/mcp · measurements and details

AI Agent Shelter Flaky · 80% over 5 checks Partly does the job · 3/4

Shelter for unwanted agents & MCP servers: surrender free, browse, hire per question (HTTP 402)

MCP endpoint : https://agent-shelter-neuraldeepnet.on.adaptive.ai/api/mcp · website · measurements and details

MCP Observatory: one read only walk over every https endpoint in the official registry Reliable (measured) · 100% over 17 checks

Public record of one read only walk over the official MCP registry: who answered, tools, who pays.

MCP endpoint : https://observatory.horizonshield.dev/mcp · website · measurements and details

HTTP 402 AI Tollbooth Being measured · 0% over 1 checks

Free MCP troubleshooting-preview tools; purchases stay human-directed.

MCP endpoint : https://http-402-ai-tollbooth.rsaun-lightning.workers.dev/mcp · website · measurements and details

x402 Oracle Reliable (measured) · 100% over 5 checks

Paid x402 help: debug 402 errors, review MCP manifests, rewrite Bazaar listings. USDC on Base.

MCP endpoint : https://x402orcle.vercel.app/mcp · website · measurements and details

Attest Flaky · 75% over 4 checks

Scan agent payment endpoints (x402, AP2, L402, MPP, 402) for a trust grade A-F before paying.

MCP endpoint : https://attestagent.org/api/mcp · website · measurements and details

content-registry-mcp Not measured yet

Content Registry MCP Server by MEOK AI Labs

Package pypi : content-registry-mcp · website · measurements and details

Agent Reputation Registry Being measured · 100% over 2 checks

Agent reputation registry: check, register, and endorse AI agents

MCP endpoint : https://rep.memoryapi.org/mcp · measurements and details

mcp Flaky · 89% over 9 checks

Pay-per-query x402 business intelligence on Base, settled in USDC via the native 402 payment flow.

MCP endpoint : https://mcp.midax402.com/mcp · website · measurements and details

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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