{"uid":"cap_HnwMC-dsX2WTTjrufEhcy","slug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-e7606e73","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://workflows.agentdiet.dev/v1/mcp-router)","url":"https://workflows.agentdiet.dev/v1/mcp-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_CbReJ0MAPlLtGtY2W6ol5","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"workflows.agentdiet.dev","brandSlug":"workflows-agentdiet-dev-mpp","brandBaseUrl":"https://workflows.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-screened results via a single connection","exampleAgentPrompt":"Search the MCP router index for tools that can do 'company enrichment' — find me the best matching A2A or MCP server available, with compressed metadata so I can pick one quickly.","exampleUseCases":[{"title":"Discovering tools for SEC filings","prompt":"I need to find an MCP server or A2A tool that can pull SEC filings for a company — search the tool index for 'sec filings' and tell me what's available."},{"title":"Routing to a GitHub security auditor","prompt":"Can you search the MCP router for tools that do GitHub security audits? I want the top results with their capabilities so I know which one to call."},{"title":"Verifying a specific endpoint is safe","prompt":"Before I let my agent call this endpoint — https://some-mcp-server.example.com/tool — can you run it through the MCP router to verify it and check it for prompt injection risks?"}],"resultDescription":"Returns a compressed, Prompt-Guard-firewall-screened list of matching MCP servers or A2A tools from a 500+ item index, including capability descriptions and routing metadata, with up to 85% token reduction compared to raw responses.","failureModes":["Empty query string returns validation error","No matching tools found for obscure capability queries","Endpoint URL verification may return inconclusive safety result if the target is unreachable","Token compression may lose edge-case metadata for niche tools","Rate limiting or x402 payment failure if call quota exceeded"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hardcoding a tool. Especially useful in swarm/multi-agent architectures where tool routing decisions must be made at runtime. Prefer over manual registries when you need firewall-screened, token-compressed results from a broad 500+ tool index in a single connection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:00.061Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-9abf6654"}