{"uid":"cap_Vi2gjUyFUln3sLNYOPZUQ","slug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-116dc0ad","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://defi-yield.agentdiet.dev/v1/web-rag-shield-dag)","url":"https://defi-yield.agentdiet.dev/v1/web-rag-shield-dag?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_ZYnC828Nwk6a3zkFHb4w0","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"defi-yield.agentdiet.dev","brandSlug":"defi-yield-agentdiet-dev-mpp","brandBaseUrl":"https://defi-yield.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed results filtered through a prompt-injection firewall","exampleAgentPrompt":"Search the MCP and A2A tool index for any servers that handle 'SEC filings' or 'company enrichment' — I need to find the best available agent tool for that capability.","exampleUseCases":[{"title":"Discovering tools for agent swarm","prompt":"I'm building a multi-agent pipeline and need to find all available MCP servers that handle GitHub security auditing — can you search the tool index and give me the best matches?"},{"title":"Capability routing for new agent","prompt":"My agent needs to do context compression and B2B lead enrichment — search the A2A and MCP tool registry for endpoints that cover those capabilities so I can wire them in."},{"title":"Verifying a specific endpoint exists","prompt":"Can you check whether there's a registered MCP or A2A endpoint for 'domain OSINT' in the tool discovery index, and confirm what it does?"}],"resultDescription":"A compressed (up to 85% token reduction) list of matching MCP servers or A2A tool entries relevant to the query, each passing through a Prompt-Guard firewall to strip prompt-injection risks, along with metadata about each tool's capabilities.","failureModes":["Empty results if query terms don't match any indexed capability","Firewall rejection if query itself contains injection-like patterns","Timeout if the meta-index is unavailable","400 error if query field is missing or empty string","Payment required (402) if x402 micropayment is not completed"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool is best suited for a given capability at runtime, especially when you want firewall-protected, token-compressed results across a broad index of 500+ tools rather than hardcoding individual tool URLs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:37:26.032Z","isFirstParty":false,"canonicalSlug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b31cc8b3"}