{"uid":"cap_1FPuFd-t5zxYZSiOFnIFB","slug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-0570eb1b","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/b2a-router)","url":"https://defi-yield.agentdiet.dev/v1/b2a-router?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_FZ3qzK6dyB4yrwCbx_wJg","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, routing requests through a compressed, prompt-injection-protected proxy","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that can do company lead enrichment — I want to find available tools and route my request through a safe, compressed proxy.","exampleUseCases":[{"title":"Discover SEC filings tools for agent","prompt":"Search the MCP tool index for any server that handles SEC filings or financial document retrieval — I need to wire it into my research agent."},{"title":"Route swarm request through safe proxy","prompt":"I have a swarm of agents that need access to GitHub security audit tools — can you search the A2A and MCP index for those capabilities and proxy the request safely?"},{"title":"Find context compression MCP servers","prompt":"Look through the MCP directory for any tools that do token or context compression — I want to reduce the token load on my agent pipeline."}],"resultDescription":"Returns a structured response identifying matching MCP servers or A2A tools for the queried capability, with compressed tool manifests (up to 85% token reduction) and prompt-injection firewall applied to all proxied responses.","failureModes":["No matching tools found for the given capability query — returns empty results or low-confidence matches","Query too vague or too short — minLength:1 is enforced but ambiguous queries may return irrelevant tools","Payment not accepted (HTTP 402) — x402 micropayment of $0.01 USDC required per call","Upstream MCP server unavailable — proxy may time out or return partial results","Prompt injection detected by Prompt-Guard firewall — response may be sanitized or blocked"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool can handle a specific capability without pre-wiring integrations, especially when token budget is constrained (85% compression) or when untrusted upstream content must be sandboxed through a prompt-injection firewall. Ideal for multi-agent orchestration, swarm routing, and exploratory tool discovery across a broad ecosystem of 500+ servers.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:32:57.574Z","isFirstParty":false,"canonicalSlug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b31cc8b3"}