{"uid":"cap_pBKNBn5sikShl98tysRZL","slug":"domain-osint-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-81052834","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://domain-osint.agentdiet.dev/v1/a2a-mesh)","url":"https://domain-osint.agentdiet.dev/v1/a2a-mesh?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_cDKE7P7fJ111fT-EOSKM6","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"domain-osint.agentdiet.dev","brandSlug":"domain-osint-agentdiet-dev-mpp","brandBaseUrl":"https://domain-osint.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query and returns compressed, firewall-screened results with endpoint metadata","exampleAgentPrompt":"Search the MCP and A2A tool index for any servers that support 'company enrichment' — I want to find available endpoints I can connect to for B2B lead data.","exampleUseCases":[{"title":"Discovering context compression tools","prompt":"Search the A2A and MCP tool index for anything that handles context compression or token reduction — I need to find a server I can route my agent through to reduce prompt size."},{"title":"Finding SEC filings capability","prompt":"Look through the MCP server index for any tools that can pull SEC filings or 10-K reports — I want to know what's available before I build my financial research agent."},{"title":"Verifying a specific MCP endpoint","prompt":"Can you check whether this endpoint URL is listed and trusted in the MCP tool registry: https://some-provider.example.com/v1/mcp — I want to know if it's indexed and safe to use."}],"resultDescription":"Returns a compressed, token-efficient list of matching MCP servers and A2A tools, including endpoint URLs, capability descriptions, safety/firewall status, and routing metadata — filtered through a Prompt-Guard firewall to remove malicious or injection-risk entries.","failureModes":["Missing or empty 'query' parameter returns a 400 validation error","No matching tools found returns an empty result set","Query too vague returns low-relevance or broad results","Payment not processed (x402) results in 402 Payment Required response","Upstream MCP index unavailable causes 503 or timeout"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability, rather than hardcoding specific tool URLs. Ideal for meta-agent orchestration, swarm routing, and situations where you want a safety-screened, token-compressed index of the MCP/A2A ecosystem in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:07.229Z","isFirstParty":false,"canonicalSlug":"domain-osint-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8753d8b2"}