{"uid":"cap_1PrjI5CoeyknZ2m_tYWY-","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-5fd1cdae","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/broker/execute)","url":"https://serp-extract.agentdiet.dev/v1/broker/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_82ETDmt-H7LkDJV1adWuv","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 a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results via a single connection.","exampleAgentPrompt":"Search the MCP tool index for servers that can handle 'SEC filings' — I need to find the right tool for my agent to pull company financial data, and make sure whatever comes back is firewall-cleared and token-compressed.","exampleUseCases":[{"title":"Swarm routing for on-chain risk","prompt":"My agent swarm needs to analyze on-chain risk for a DeFi token — search the MCP meta-index for tools that handle 'on-chain risk' or 'smart contract security' and route me to the best available server."},{"title":"Discovering email verification tools","prompt":"Find me all the MCP servers in the index that support email verification or B2B lead enrichment — I want to know which ones are available so I can pick the right one for my outreach pipeline."},{"title":"Safe-proxying a specific tool endpoint","prompt":"I have this MCP endpoint URL I found online — can you run it through the broker to verify it's safe and get a compressed, firewall-cleared description of what it actually does?"}],"resultDescription":"Returns a compressed (up to 85% token reduction) list of matching MCP servers or A2A tools from the 500+ item index, filtered through the Prompt-Guard firewall. Each result includes tool descriptors, capability summaries, and routing metadata sufficient for an agent to select and invoke the appropriate downstream tool.","failureModes":["Empty query string returns 400 validation error","No matching tools found returns empty results object","Firewall blocks malicious or prompt-injection-containing queries","Downstream MCP server unavailable causes partial results","x402 payment failure prevents execution","Overly broad query returns too many low-relevance 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, especially in multi-agent swarm architectures where routing decisions must be made programmatically. Prefer this over hardcoded tool lists when the capability landscape changes frequently or when safety filtering (Prompt-Guard) is required before proxying to third-party tools. It is ideal for orchestrators that need a single connection point to 500+ tools with token-budget constraints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:30:48.550Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}