{"uid":"cap_Ji_Mogey3ez7b3L0rn_lU","slug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-7df8c6bc","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/b2b-osint-dag)","url":"https://defi-yield.agentdiet.dev/v1/b2b-osint-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_xDGlpCZ7fdJAJBqkApS3S","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, firewall-filtered results via a single connection","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that can do company enrichment or B2B lead data — I want to see what's available with a single query.","exampleUseCases":[{"title":"Discovering tools for SEC filing retrieval","prompt":"Search the meta-router for MCP servers or A2A tools that handle SEC filings or EDGAR document lookups — I need to know what's indexed and available."},{"title":"Finding prompt injection firewall capabilities","prompt":"Query the tool discovery index for anything related to prompt injection detection or jailbreak firewall — I want to see which agents or MCP servers cover that capability."},{"title":"Verifying a specific endpoint is safe to call","prompt":"Can you run this endpoint URL through the meta-router's tool index to verify it and check whether it has any known safety or proxy flags: https://example-agent.dev/v1/some-tool"}],"resultDescription":"Returns a structured object listing matched MCP servers and A2A tools relevant to the capability query, with compressed metadata (85% token reduction) and Prompt-Guard firewall filtering applied. Includes tool names, descriptions, endpoint URLs, and relevance signals.","failureModes":["Empty query string returns validation error","No matching tools found for obscure or very narrow capability queries","Endpoint URL verification may return inconclusive results for unlisted endpoints","Service unavailability may return HTTP 402 or 5xx if payment or upstream index is unreachable"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability without hardcoding specific tool URLs. Particularly useful for swarm orchestration, capability routing, or when building an agent that needs to self-select tools at runtime. Prefer over manual tool directories when token efficiency and prompt-injection safety are priorities.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:51:26.266Z","isFirstParty":false,"canonicalSlug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b31cc8b3"}