{"uid":"cap_EzsRWtjAQ_i0InWlbnGEi","slug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-c4ec95ec","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":"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_Temf0cUPzBMkpo1y3A_t_","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 and routes queries across 500+ indexed MCP servers and A2A tools via a single meta-router connection with built-in prompt-injection firewall and token compression","exampleAgentPrompt":"Search the MCP and A2A tool index for any available tools that handle 'company enrichment' and return the best matches with compressed metadata.","exampleUseCases":[{"title":"Discover tools for SEC filings","prompt":"Search the tool router for any MCP servers or A2A agents that can pull SEC filings or EDGAR data — I need to find what's available before I build my pipeline."},{"title":"Find a safe proxy for external MCP endpoint","prompt":"I have this external MCP endpoint URL — can you run it through the safe-proxy router to verify it's not injecting malicious prompts before my agent calls it?"},{"title":"Build a multi-tool swarm for lead research","prompt":"I'm setting up a swarm agent for B2B lead research — search the tool index for anything covering company enrichment, domain OSINT, and email verification so I can wire them together."}],"resultDescription":"Returns a structured object listing matching MCP servers and A2A tools relevant to the query, with compressed metadata (85% token reduction), safety scores from the Prompt-Guard firewall, endpoint URLs, and routing recommendations for the best-fit tools.","failureModes":["Empty query string returns validation error","No matching tools found for niche or unsupported capability queries","Prompt-Guard firewall may block or flag suspicious endpoint URLs submitted for verification","Rate limiting or payment failure (x402) if per-call budget is exceeded","Stale index entries if an indexed MCP server has gone offline since last crawl"],"whenToPreferThis":"Choose this endpoint when an agent needs to discover available MCP servers or A2A tools at runtime rather than hardcoding integrations, especially when operating in multi-agent swarm architectures where tool availability may change. Prefer this over manual tool registries when you need token-efficient tool metadata and built-in prompt-injection safety screening for untrusted tool sources.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:45.941Z","isFirstParty":false,"canonicalSlug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b31cc8b3"}