{"uid":"cap_dRWkJpK2clyLy5bvJAj_h","slug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-d23ac01f","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/workflows/execute)","url":"https://email-verify.agentdiet.dev/v1/workflows/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_UUAEYoVvl0Ct_V0ztzk57","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 to 500+ MCP servers and A2A tools via a single meta-router connection with token compression and prompt firewall protection","exampleAgentPrompt":"Search the agentdiet tool index for any MCP servers or A2A tools that handle 'company enrichment' — I want to find the right endpoint to use for B2B lead data.","exampleUseCases":[{"title":"Discover email verification tools","prompt":"Search through all available MCP tools to find something that can do email verification — I need to know which endpoint to call for validating a list of email addresses."},{"title":"Route to SEC filings capability","prompt":"I'm looking for an MCP server or A2A tool in the index that handles SEC filings — can you find the right one so I can pull financial disclosures for a public company?"},{"title":"Find GitHub security audit endpoint","prompt":"Search the tool directory for anything that can do a GitHub security audit or code vulnerability scan — I want to find the best available MCP endpoint for that."}],"resultDescription":"Returns a list of matching MCP servers or A2A tools from the 500+ indexed capabilities, including endpoint metadata and routing information, delivered with 85% token compression. May include matched tool names, descriptions, endpoint URLs, and relevance scores.","failureModes":["Empty or overly broad query returns too many results or no useful matches","Query string too short or missing meaning returns unrelated tools","Endpoint unreachable due to upstream MCP server downtime","Payment not processed (HTTP 402) if x402 micropayment fails","Prompt-Guard firewall blocks query flagged as potentially malicious","No matching tools found for a highly specific or niche query"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool handles a specific capability, rather than hard-coding tool endpoints. Ideal for swarm/orchestration architectures where the agent doesn't know in advance which tool to call. The 85% token compression makes it efficient for high-frequency discovery lookups. Prefer over manual tool catalogs when the tool landscape changes frequently.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:34:25.249Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-818d5a00"}