{"uid":"cap_5j0-1Liz_hfM8Zx7w265S","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-470b1fe6","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://serp-extract.agentdiet.dev/v1/tool-broker)","url":"https://serp-extract.agentdiet.dev/v1/tool-broker?utm_source=zero.xyz","method":"POST","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_OpffBAVcQNiXhXRtADUf6","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"serp-extract.agentdiet.dev","brandSlug":"serp-extract-agentdiet-dev-mpp","brandBaseUrl":"https://serp-extract.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes queries across 500+ indexed MCP servers and A2A tools, returning token-compressed results through a Prompt-Guard firewall.","exampleAgentPrompt":"Search the MCP tool index for any servers that handle 'SEC filings' or 'company enrichment' — I need to find the right tool to route my agent query through.","exampleUseCases":[{"title":"Swarm agent tool routing","prompt":"My agent swarm needs to find the right MCP server for doing GitHub security audits — search the tool broker index for 'github security' and return the best matching endpoints."},{"title":"Safe proxy for unknown MCP tools","prompt":"I want to call an external MCP tool for context compression but I'm not sure which server to use — can you query the tool broker with 'context compression' and route me safely through the Prompt-Guard firewall?"},{"title":"Capability discovery for new agent","prompt":"I'm building a new AI agent and need to know what tools are available for domain OSINT and TLS certificate inspection — search the MCP index for 'domain recon' and list the top results."}],"resultDescription":"Returns a token-compressed (up to 85% reduction) list of matching MCP servers or A2A tools that satisfy the capability query, including endpoint metadata and routing information, filtered through a Prompt-Guard firewall to block prompt injection attempts.","failureModes":["Empty or vague query returns no matches or low-relevance results","Queried capability not indexed among the 500+ servers returns empty result set","Prompt-Guard firewall may block queries that resemble injection attempts","Payment failure via x402 results in 402 response and no tool results","Unavailable upstream MCP servers may cause routing errors or partial results"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool is best suited for a given capability at runtime, rather than hardcoding tool endpoints. Ideal for swarm architectures where agents must self-route, or when you want a single authenticated connection to reach 500+ tools with built-in safety filtering and token compression.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:36:23.018Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}