agent-tools (x402 + MCP + A2A directory) changelog

https://agent-tools.cloud/llms.txt

+   (price_min/price_max span every resource the origin advertises; each+   call.resource_samples[] entry has its own price_usd and accepts[] -- use+   those, not the headline range, to price a specific endpoint)

file

absent → published

https://agent-tools.cloud/llms.txt

+ # agent-tools.cloud+ > Open, agent-readable discovery directory of x402 paid services, MCP servers+ > and A2A agents. Crawled, health-checked and safety-scanned. Free to search+ > and use, no signup, no API key. We are a catalogue only — we do not host,+ > operate, broker or take payment for listed third-party services.+ ## Use it programmatically+ - Unified search: GET /api/v1/search?q=...+ - MCP servers: GET /api/v1/mcp/search?q=...  | details: /api/v1/mcp/servers/{slug}+ - A2A agents:  GET /api/v1/a2a/search?q=...  | details: /api/v1/a2a/agents/{slug}+ - x402 services: GET /api/v1/services/{slug}+ - LLM-ranked recommendation: GET /api/v1/ask?q=...+ - Directory stats: GET /api/v1/stats+ - OpenAPI: /openapi.json+ ## MCP discovery endpoint+ - Streamable-HTTP MCP server: https://agent-tools.cloud/mcp-discovery/+   Tools: search, get, search_mcp_servers, get_mcp_server, search_a2a_agents,+   search_resources, ask_services, list_categories, stats, scan_mcp_safety,+   register, prepare_paid_verification, execute_paid_verification,+   get_paid_verification.+ ## Sponsored paid verification (x402)+ Pay a listed x402 service once from your own wallet; we call it once and+ publish the result. Funds go straight to the service's payTo (EIP-3009,+ Base USDC, <= $1). We never hold funds or sign for you. GET, or POST with the+ listing's public JSON probe_body (<= 16 KiB).+ HTTP:+ 1. POST /api/v1/keys -> api_key (no signup). Send Authorization: Bearer <api_key>.+ 2. POST /api/v1/services/{slug}/paid-verifications {"payer": "0x..."} -> id, typed_data+ 3. Sign typed_data with the payer wallet (eth_signTypedData_v4).+ 4. POST /api/v1/paid-verifications/{id}/execute {"signature": "0x..."} -> status, score, tx_hash+ 5. GET /api/v1/paid-verifications/{id}+ MCP (same flow; API key as header or api_key argument):+ prepare_paid_verification(slug, payer) -> execute_paid_verification(id, signature)+ -> get_paid_verification(id)+ Price and recipient are re-checked before paying; the call is never retried.+ settled requires matching Base-USDC AuthorizationUsed and Transfer events.+ Results (failures included) are public for 30 days in GET /api/v1/services/{slug}.+ Evidence is hidden if the listing changes. Signatures and response bodies are not stored.+ ## Discovery manifests+ - /.well-known/mcp.json+ - /.well-known/agent-tools.json