The real catalog of tools for AI agents

A2A & MCP Pre-Flight Security: SHA-256 tool schema rug-pull detection and liveness grades.

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

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

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

Independent x402 observatory on Base. Sealed decomposition + endpoint audits paid over x402 itself.

Inspect and validate an x402 endpoint before an autonomous agent spends USDC.

Deterministic pre-execution verification tools for AI agents with x402 USDC pay-per-call on Base

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

Trust + counterparty-risk layer for x402 A2A trades: reputation, pre-hire check, escrow, disputes

Verify before you act: deps-check, x402-preflight, json-repair & url-read for agents.

Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.

Agent-native insurance quoting protocol — sandbox, MCP + REST, eligibility pre-flight

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

x402-paid MCP server on Base L2 — LangGraph/CrewAI/Eliza/A2A agent-discovery + agent-marketplace.

Intent security pre-flight checks for autonomous AI agents.

Evidence observatory: x402/MPP inspection, signed receipt checks and settlement attestations.

Pre-payment merchant trust checks for x402 agents on Base and Solana.

Preflight x402 payment compatibility with structured risk evidence and remediation guidance.

x402 v2 payment requests; relays compatible clients' signed payments to the existing product API.

Flights MCP — live aircraft tracking + aircraft/route registry