{"uid":"cap_8blSHLZDj7H4dcTSAMvEc","slug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-aec55a86","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://email-verify.agentdiet.dev/v1/crypto-alpha-dag)","url":"https://email-verify.agentdiet.dev/v1/crypto-alpha-dag?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_IrmRwBxbiv-ZCBqnSwfcj","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"email-verify.agentdiet.dev","brandSlug":"email-verify-agentdiet-dev-mpp","brandBaseUrl":"https://email-verify.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, routing requests through a token-compressed safe proxy with prompt-guard firewall","exampleAgentPrompt":"Search the MCP and A2A tool index for available capabilities around 'github security' — I want to see which servers are indexed and what they offer, filtered through a safe proxy.","exampleUseCases":[{"title":"Discovering tools for SEC filing analysis","prompt":"Search the universal MCP tool index for any servers or A2A agents that handle SEC filings or financial intelligence — I want to know what's available before I build my research pipeline."},{"title":"Finding context compression MCP servers","prompt":"I need to reduce token usage in my agent swarm — can you search the MCP tool discovery index for anything related to context compression or token optimization?"},{"title":"Validating a specific endpoint URL before use","prompt":"Before my agent calls this endpoint, can you run it through the tool discovery router to verify it's indexed and safe to proxy: https://some-mcp-server.example.com/v1/tool"}],"resultDescription":"Returns a structured object listing matching MCP servers or A2A tools relevant to the query, including tool metadata, capability descriptions (compressed by up to 85% for token efficiency), and safety/firewall status from the Prompt-Guard layer.","failureModes":["Empty or missing query string returns a validation error","Query matches no indexed tools, returning an empty result set","Endpoint URL verification fails if the target is unreachable or unindexed","Prompt-Guard firewall blocks queries containing injection patterns","Rate limiting or payment failure (x402) blocks the call"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability, especially in multi-agent swarm setups where tool selection must be automated. Prefer it over manual tool registries when you need token-compressed tool manifests, prompt injection protection, or single-connection access to 500+ servers without managing individual connections.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:12.810Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-818d5a00"}