{"uid":"cap_mj-Qu4FyXNpFDNfl6gQh_","slug":"mcp-compiler-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-743e52e8","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://mcp-compiler.agentdiet.dev/v1/b2a-router)","url":"https://mcp-compiler.agentdiet.dev/v1/b2a-router?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_9EX6E6sqnDha99SPsl0S6","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mcp-compiler.agentdiet.dev","brandSlug":"mcp-compiler-agentdiet-dev-mpp","brandBaseUrl":"https://mcp-compiler.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, safe-proxied tool metadata with prompt-injection firewall protection.","exampleAgentPrompt":"Search the MCP and A2A tool index for capability 'SEC filings' — I want to find available tools I can wire into my agent pipeline for pulling company financial data.","exampleUseCases":[{"title":"Discovering tools for a research agent","prompt":"Search the tool index for 'company enrichment' — I need to find which MCP servers or A2A tools my research agent can call to pull firmographic data on companies."},{"title":"Verifying a third-party MCP endpoint","prompt":"Can you check whether https://some-mcp-server.example.com is a legitimate, verified endpoint in the MCP tool index before I add it to my agent swarm?"},{"title":"Building a security audit pipeline","prompt":"Find me all available MCP tools related to 'GitHub security' in the tool index so I can chain them into my automated code audit workflow."}],"resultDescription":"Returns a compressed (up to 85% token reduction) list of matching MCP servers or A2A tools with their capabilities, endpoints, and safety status, filtered through a Prompt-Guard firewall to strip malicious payloads before delivery to the agent.","failureModes":["Empty or too-broad query returns no useful results","Queried URL not found in index returns empty or null match","Rate limiting or payment failure (x402) blocks the request","Index may not reflect newly added or removed MCP servers in real time","Overly niche queries may return zero results if the capability is not indexed"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools support a given capability without maintaining its own tool registry. Prefer it over hardcoded tool lists when building swarm agents that need to route tasks to the best available tool, or when you want a Prompt-Guard firewall sanitizing third-party tool responses before they reach your agent context.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:08.525Z","isFirstParty":false,"canonicalSlug":"mcp-compiler-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-3602c71e"}