{"uid":"cap_g56WKkCQ1Tq58SjM7ZCMM","slug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-c8b0253d","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/tool-broker)","url":"https://email-verify.agentdiet.dev/v1/tool-broker?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_H3NRdFZUfspwr-E2ldcEZ","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 meta-router connection with token compression and prompt firewall.","exampleAgentPrompt":"Search the tool broker for MCP servers or A2A tools that support 'SEC filings' and tell me which ones are available so I can pick the right one to call.","exampleUseCases":[{"title":"Discovering GitHub audit tools for an agent","prompt":"Search through the tool broker index and find me any MCP servers or A2A tools that handle GitHub security audits — I need to know what's available before building my agent pipeline."},{"title":"Finding prompt firewall or safety tools","prompt":"Can you query the tool broker for MCP servers that offer prompt injection protection or a prompt guard firewall? I want to add a safety layer to my AI agent swarm."},{"title":"Locating B2B lead enrichment capabilities","prompt":"Use the tool broker to search for any available A2A or MCP tools that do B2B lead enrichment or company data lookups — I need to find something I can route my agent requests through."}],"resultDescription":"Returns a list of matching MCP servers and A2A tools from the 500+ indexed catalog, with metadata about each tool's capabilities, likely compressed by up to 85% for token efficiency, and filtered through the Prompt-Guard firewall for safety.","failureModes":["Query too vague — returns no matching tools or low-relevance results","Payment failure via x402 — returns HTTP 402 if USDC payment not accepted","Invalid or empty query string — returns validation error","Upstream MCP server unavailable — routing failure for specific tool","Rate limiting or quota exceeded — returns error if too many requests in short window"],"whenToPreferThis":"Choose this endpoint when you need to discover or route to one of many MCP servers or A2A tools without maintaining individual connections to each. Ideal for agent orchestration layers, swarm routers, or any workflow that needs to dynamically find the right sub-tool at runtime rather than hardcoding a specific API.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:30:59.069Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-818d5a00"}