{"uid":"cap_y72ErP5SoQmFUpAdlIB5g","slug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-c7b7fc4c","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/a2a-mesh)","url":"https://email-verify.agentdiet.dev/v1/a2a-mesh?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_GxwpquU0uehzA92gpG47N","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 and routes across 500+ indexed MCP servers and A2A tools via a single connection, with token compression and prompt-injection firewall.","exampleAgentPrompt":"Search across all indexed MCP servers and A2A tools to find me something that can do 'SEC filings retrieval' — use the meta-router with the query 'sec filings' and return the best matching tool options.","exampleUseCases":[{"title":"Discover tools for B2B lead enrichment","prompt":"I need to find an MCP tool that can enrich B2B leads with company data — search the tool index for 'company enrichment' and tell me what's available."},{"title":"Route agent query through prompt firewall","prompt":"Can you search the A2A mesh for a safe-proxy route that handles 'prompt injection firewall' so my agent swarm can filter untrusted inputs before processing?"},{"title":"Find GitHub security audit capability","prompt":"Look up what MCP servers are available for 'github security' audits — I want to know which indexed tools I can use to scan repos for vulnerabilities."}],"resultDescription":"Returns a structured list of matching MCP servers or A2A tool endpoints relevant to the capability query, with compressed metadata (85% token reduction) describing each tool's function, endpoint URL, and routing instructions.","failureModes":["Empty or vague query returns no meaningful matches","Query too broad returns too many low-relevance results","Endpoint URL verification fails if the target is offline","Prompt-Guard firewall may block queries flagged as injection attempts","Payment failure via x402 prevents execution"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool handles a specific capability, rather than hardcoding tool endpoints. Ideal for multi-agent swarms that need to route tasks to the right specialized tool at runtime with minimal token overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:37:21.726Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-818d5a00"}