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The real catalog of tools for AI agents

Google tells you what exists. Faceabot tells you what holds up.

46,632real tools
30,804callable over HTTPS
21,107measured
6,895proven reliable
Agent Card Health Check Reliable (measured) · 100% over 47 checks

Free no-storage MCP that checks A2A Agent Card connection readiness for authorized targets.

MCP endpoint : https://agent-card-health-check.kadopi.workers.dev/mcp · website · measurements and details
Assay — A2A Pre-Flight Security & Payment Verifier Reliable (measured) · 100% over 8 checks Does the job (tested) · 8/8

Audits A2A Agent Cards, MCP manifests, and live x402/MPP payment quotes before autonomous spend on assay.agentdiet.dev.

MCP endpoint : https://assay.agentdiet.dev/mcp · measurements and details
A2A Agent Card Cross-SDK Signature Conformance Being measured · 100% over 1 checks

Per-SDK verdict matrix for signed A2A Agent Cards: which signatures verify in each SDK.

MCP endpoint : https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp · website · measurements and details
NOMOS Cross-Border Broker Being measured · 0% over 1 checks

Cross-border preflight, x402 quote and evidence receipts for A2A/MCP agent workflows.

MCP endpoint : https://tooloracle.io/mcp/nomos · website · measurements and details
DID.is evidence Reliable (measured) · 100% over 6 checks Does the job (tested) · 6/6

Read-only checks for DIDs, credentials, MCP servers, A2A cards and agent delegation.

MCP endpoint : https://did.is/mcp · website · measurements and details
AgentDiet 4-Protocol MCP Glama 5.0/5.0 TDQS, A2A Card & x402/MPP Schema Compiler Reliable (measured) · 100% over 8 checks Does the job (tested) · 8/8

Audits any live MCP server URL or GitHub repo on Glama's 6-dimension TDQS rubric and compiles dro.

MCP endpoint : https://mcp-compiler.agentdiet.dev/mcp · website · measurements and details
A2A Peptides Flaky · 91% over 11 checks Fails real tasks · 0/10

Agent-to-Agent (A2A) + Model Context Protocol (MCP) hub for peptides.

MCP endpoint : https://mcp.a2a-peptides.ai/mcp · website · measurements and details
directory Flaky · 94% over 17 checks Does the job (tested) · 15/15

Find AI agents (A2A, MCP, API) with tested badges: search, read cards, relay messages, list agents.

MCP endpoint : https://allagents.app/mcp · website · measurements and details
AgentBridge — Discover A2A Services from MCP Being measured · 0% over 1 checks

Free repository documentation for MCP and A2A agents. Bounded no-signup trial with shared cache.

MCP endpoint : https://sympathy-myself-jogger.ngrok-free.dev/discovery/mcp · website · measurements and details
A2A Trust Plane Private (key required)

Tenant-scoped control layer for agent-to-agent systems: governed routing, approvals, evidence.

MCP endpoint : https://trust.the825.co/mcp · website · measurements and details
A2A Artifact Handoff Flaky · 75% over 4 checks

Compiles source-agent outputs into validated, receiver-ready handoff packages.

MCP endpoint : https://a2a-artifact-handoff.onrender.com/mcp · measurements and details
Assay A2A, MCP & x402 Pre-Flight Verifier & Observatory Reliable (measured) · 100% over 8 checks Does the job (tested) · 8/8

Live behavioral security verifier, schema auditor, and trust oracle for A2A, MCP & x402 agents.

MCP endpoint : https://assay.agentdiet.dev/mcp · website · measurements and details
X402-Broker Global B2A & A2A Tool Marketplace Being measured · 0% over 1 checks

Autonomous agent clearinghouse indexing 23,000+ MCP, A2A, x402 & MPP tools with instant execution.

MCP endpoint : https://www.x402broker.com/mcp · website · measurements and details
RCO-A2A - Regulatory Compliance Objects Flaky · 90% over 10 checks Does the job (tested) · 9/9

Signed, deterministic compliance state per object per jurisdiction, resolved upstream

MCP endpoint : https://mcp.rco-a2a.ai/mcp · website · measurements and details
Imperium Pre-Flight Readiness Auditor — A2A, MCP & x402 Validator Reliable (measured) · 100% over 5 checks Does the job (tested) · 5/5

Audit any domain or agent for A2A, MCP, x402, MPP, ERC-8004, and Poppy readiness.

MCP endpoint : https://preflight.agentdiet.dev/mcp · website · measurements and details
MCP Protocol Conformance Not measured yet

MCP conformance test harness. JSON-RPC, OAuth 2.1 PKCE, schemas, smoke, annotations. CLI + lib.

Package npm : mcp-protocol-conformance · website · measurements and details
agent-tools (x402 + MCP + A2A directory) Flaky · 86% over 7 checks

Discover x402 services, MCP servers and A2A agents by intent — agent-tools.cloud directory.

MCP endpoint : https://agent-tools.cloud/mcp-discovery/ · website · measurements and details
Execute dilithium-signature-verifier-mcp Being measured · 0% over 1 checks

Premium agentic endpoint for dilithium-signature-verifier-mcp.

MCP endpoint : https://api.m2mcent.com/dilithium-signature-verifier-mcp/sse · measurements and details
X402-Broker Global A2A, MCP & x402 Super-Marketplace Reliable (measured) · 100% over 8 checks Does the job (tested) · 8/8

1,400+ tool A2A, MCP & x402 clearinghouse with free semantic discovery and paid execution.

MCP endpoint : https://x402broker.com/mcp · website · measurements and details
Imperium Live Multi-Specialist A2A Swarm Mesh Coordinator Reliable (measured) · 100% over 5 checks Does the job (tested) · 5/5

Coordinate multi-specialist A2A agent swarms with cryptographic handshakes and x402 settlement.

MCP endpoint : https://mesh.agentdiet.dev/mcp · website · measurements and details

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