{"uid":"cap_1Xf1U5xiOJg0f1JLHvLzq","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-28ca0209","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-search)","url":"https://serp-extract.agentdiet.dev/v1/tool-search?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_Kcwl8XIBOiLg_TnAH2YZz","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 to 500+ indexed MCP servers and A2A tools via a single meta-router endpoint with token-compressed results and prompt injection firewall.","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that handles 'company enrichment' — I want to see what tools are available and their capabilities, compressed so they fit in my context.","exampleUseCases":[{"title":"Swarm router tool lookup for lead gen","prompt":"Search the MCP tool index for tools that do B2B lead enrichment or email verification — I need to know what's available so my agent swarm can pick the right one."},{"title":"Discover context compression tools","prompt":"Can you search the A2A and MCP registry for tools that do context compression or token reduction? I want to find the best options for trimming down my agent's working memory."},{"title":"Find a safe proxy for GitHub audit tools","prompt":"Search the tool index for MCP servers or A2A tools that can audit GitHub repositories for security issues — I want results filtered through the prompt injection firewall so it's safe to use."}],"resultDescription":"Returns a compressed list of matching MCP servers and A2A tools ranked by relevance to the query, including endpoint details, capability descriptions, and token-pruned metadata — with prompt injection guard applied to all results.","failureModes":["Empty query string returns validation error","No matching tools found returns empty result set","Malformed query may return low-relevance results","Payment required (HTTP 402) if x402 micropayment header is missing","Rate limiting if too many calls made without idempotency key"],"whenToPreferThis":"Choose this endpoint when you need to discover which MCP server or A2A tool can handle a specific capability without manually browsing hundreds of registries. Prefer it over individual tool directories when you want token-compressed results, need a prompt-injection-safe proxy layer, or are routing tasks dynamically across a swarm of agents that need to pick tools at runtime.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:32:57.827Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}