{"uid":"cap_y8IUrN2-mBeMfCU5AhOjS","slug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-27027e58","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/agent-tool-marketplace)","url":"https://email-verify.agentdiet.dev/v1/agent-tool-marketplace?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_CQ9VzGJ0OqsoFdlEAeesi","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":"Meta-router that indexes 500+ MCP servers and A2A tools, enabling capability search with 85% token compression and a Prompt-Guard firewall via a single connection.","exampleAgentPrompt":"Search the MCP tool marketplace for any servers that handle 'SEC filings' or 'company enrichment' — I want to find the best available A2A tool I can route my agent through.","exampleUseCases":[{"title":"Discover tools for GitHub security auditing","prompt":"Search the agent tool marketplace for any MCP servers or A2A tools that can do GitHub repository security audits — I need something I can plug into my swarm right now."},{"title":"Route agent query through MCP meta-router","prompt":"I need you to find and proxy a request to the right MCP tool for 'context compression' — search the marketplace and tell me what's available."},{"title":"Find domain OSINT capabilities for agent pipeline","prompt":"Look up what tools in the MCP marketplace can handle domain OSINT or B2B lead enrichment — I want to know which servers are indexed and what they return."}],"resultDescription":"Returns a structured object containing matching MCP servers or A2A tools relevant to the capability query, with token-compressed metadata, routing instructions, and firewall-cleared results ready for agent consumption.","failureModes":["Empty or vague query string returns no meaningful matches","Query for unsupported capability returns empty results","Payment not attached causes HTTP 402 rejection","Prompt-Guard firewall blocks queries containing injection patterns","Upstream MCP server unavailable causes partial results or timeout"],"whenToPreferThis":"Choose this endpoint when you need to discover, search, or route to any of 500+ MCP servers or A2A tools from a single connection rather than individually integrating each tool. It is especially valuable when building multi-agent pipelines or swarms that need dynamic capability discovery with token-efficient responses and built-in prompt injection protection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:36:52.714Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-818d5a00"}