{"uid":"cap_yHFvTnMjZdKnoe-m1qkef","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-1bfcec3f","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/execute)","url":"https://serp-extract.agentdiet.dev/v1/execute?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_LZcTBTtjS6IbYNC3lB8St","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 across 500+ MCP servers and A2A tools using a single connection, returning token-compressed results with prompt-injection protection.","exampleAgentPrompt":"Search the MCP and A2A tool index for capabilities related to 'SEC filings' and show me the best matching tools with compressed metadata.","exampleUseCases":[{"title":"Discovering tools for a new agent pipeline","prompt":"I'm building an agent that needs to do B2B lead enrichment — can you search the MCP tool index for available capabilities that handle company data and contact extraction?"},{"title":"Finding a safe proxy for web scraping tools","prompt":"Search for MCP servers that support web distillation or URL content extraction, and give me the top results with their descriptions compressed for my agent's context window."},{"title":"Routing agent to on-chain risk tools","prompt":"My agent needs to assess smart contract risk on Base EVM — find me the available A2A or MCP tools in the index that cover on-chain security or contract auditing."}],"resultDescription":"Returns a list of matching MCP servers and A2A tools relevant to the query, with metadata compressed by up to 85% to save tokens, filtered through a Prompt-Guard firewall to block injection attacks. Includes tool names, capability descriptions, and routing information.","failureModes":["Empty or vague query returns no matches or low-relevance results","Unknown or malformed endpoint URL fails verification","Prompt-Guard firewall blocks queries containing injection-like patterns","Rate limiting or payment failure (HTTP 402) if x402 payment not properly attached","Index may not reflect newly added MCP servers in real time"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to invoke for a given capability, rather than hardcoding a specific tool. Especially useful for multi-agent swarms, tool orchestrators, or agent pipelines that need to route to the right service at runtime without bloating the context window.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:30:53.449Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}