{"uid":"cap_Pf1UsdjZFKcpaktph8bAr","slug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-16025d34","name":"Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router","description":"Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall. (Live x402 v2, IETF MPP & MCP endpoint at https://email-verify.agentdiet.dev/v1/tool-broker)","url":"https://email-verify.agentdiet.dev/v1/tool-broker?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["query"],"properties":{"query":{"type":"string","minLength":1,"description":"Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.01","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_h8h8vh4W4PJ_rMIkMgyDb","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"email-verify.agentdiet.dev","brandSlug":"email-verify-agentdiet-dev-mpp","brandBaseUrl":"https://email-verify.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches a meta-index of 500+ MCP servers and A2A tools by capability query, returning matching endpoints with token-compressed results via a Prompt-Guard firewall.","exampleAgentPrompt":"Search the MCP tool broker for any indexed servers that can do 'context compression' — I want to see what agent tools are available and get back token-efficient results with the Prompt-Guard firewall active.","exampleUseCases":[{"title":"Agent swarm tool discovery","prompt":"I'm building an AI agent swarm and need to find all the MCP servers in the broker index that handle SEC filings or financial intelligence — can you search for those and list what's available?"},{"title":"Safe-proxy endpoint verification","prompt":"Can you look up the tool broker for any indexed A2A tools that do on-chain risk or DEX token analysis, and tell me which endpoints are verified and safe to route through?"},{"title":"Capability gap research for agent pipeline","prompt":"My agent pipeline needs something for B2B lead enrichment — search the MCP meta-router for any tools covering company tech stack or contact enrichment so I can see what's available."}],"resultDescription":"A compressed listing of matching MCP servers and A2A tools relevant to the query, including endpoint metadata, capability descriptions (with up to 85% token compression), and Prompt-Guard firewall validation status. Results are returned as a structured JSON object.","failureModes":["Missing or empty 'query' parameter returns a 400 validation error","No matching tools found for the capability query returns an empty result set","Payment not completed (x402) results in a 402 Payment Required response","Queried endpoint URL is not indexed or unverifiable","Firewall (Prompt-Guard) blocks a query flagged as adversarial, returning a rejection response"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools support a given capability across a large, curated index — especially when token efficiency matters (85% compression) or when you need a single trusted proxy entry point rather than managing direct connections to hundreds of individual servers. Prefer it over manual tool registries or direct server polling.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:34.454Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-818d5a00"}