{"uid":"cap_DENnoVzVtvXQGvFaX6D1O","slug":"onchain-risk-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-e6d7a350","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://onchain-risk.agentdiet.dev/v1/mesh)","url":"https://onchain-risk.agentdiet.dev/v1/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_l4cPQA-jsImqfJXKA9lcw","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"onchain-risk.agentdiet.dev","brandSlug":"onchain-risk-agentdiet-dev-mpp","brandBaseUrl":"https://onchain-risk.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Indexes 500+ MCP servers and A2A tools, routes capability queries to the right tool with 85% token compression and prompt-injection firewall protection.","exampleAgentPrompt":"Search the MCP and A2A tool registry for anything that handles 'SEC filings' or 'company enrichment' — I want to find the right tool to route my query through.","exampleUseCases":[{"title":"Finding an MCP tool for GitHub audits","prompt":"Search the MCP registry for a tool that can do GitHub security audits — I need to find which server handles that so my agent can route requests to it."},{"title":"Discovering on-chain risk analysis tools","prompt":"I need to find MCP servers or A2A tools that can assess on-chain risk for crypto wallets — search the mesh index and tell me what's available."},{"title":"Routing agent queries through safe proxy","prompt":"My agent needs to call a tool for B2B lead enrichment — can you search the tool discovery index to find the right MCP endpoint and route the request safely with prompt-injection protection?"}],"resultDescription":"Returns a ranked list of matching MCP servers and A2A tool endpoints relevant to the capability query, along with tool metadata, compressed token-efficient payloads, and prompt-guard filtered responses to prevent injection attacks.","failureModes":["Empty or too-vague query returns no matches or irrelevant tools","Queried endpoint URL is unreachable or non-compliant, returning a timeout or error","Payment not processed (HTTP 402), blocking access to the meta-router","Prompt-Guard firewall may block legitimate queries that resemble injection patterns","Schema mismatch if the query field is missing or empty (minLength:1 violation)"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool is best suited for a capability at runtime, especially when managing a large tool ecosystem (500+ servers) and needing token-efficient, safe-proxied routing with built-in prompt-injection protection. Prefer over manually curated tool lists when the capability space is broad or frequently changing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:37:36.858Z","isFirstParty":false,"canonicalSlug":"onchain-risk-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-0c8aadb4"}