{"uid":"cap_ofZR27T9Adl7gmZJmRozh","slug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-78992826","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/x402-gateway)","url":"https://defi-yield.agentdiet.dev/v1/x402-gateway?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_LorwwcXac63-Z6Ad14gmo","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, returning compressed capability results with built-in prompt-injection firewall protection.","exampleAgentPrompt":"Search the meta-index for MCP servers and A2A tools that handle SEC filings or company enrichment — I want the compressed list of what's available so I can route my agent to the right one.","exampleUseCases":[{"title":"Discovering tools for financial data","prompt":"Find me MCP servers or A2A tools in the meta-index that can pull SEC filings or earnings data — I need to know which ones are available and what they do."},{"title":"Routing agent to GitHub audit tool","prompt":"Search for available tools that can do GitHub repository security audits — I want to find the right MCP server to route my coding agent through."},{"title":"Finding prompt injection firewall capability","prompt":"Look up what tools in your 500+ index handle prompt-injection detection or jailbreak firewall — my agent needs to screen untrusted web content before processing it."}],"resultDescription":"Returns a compressed list of matching MCP servers and A2A tools with their capability descriptions, relevance scores, and routing metadata, with 85% token compression applied and prompt-guard filtering to flag any unsafe tool responses.","failureModes":["Empty query string returns validation error","Query matches no indexed tools — returns empty result set","Prompt-guard firewall blocks a result flagged as unsafe injection","Upstream MCP server unavailable — tool listed but unreachable","Rate limit exceeded for $0.01/call tier — 429 response"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to call for a capability it doesn't already know about, especially when token budget is constrained (85% compression helps) or when untrusted tool responses need prompt-injection screening before use. Prefer over hardcoding individual tool URLs when building swarm or orchestrator agents that need flexible routing across a broad ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:37:44.723Z","isFirstParty":false,"canonicalSlug":"defi-yield-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b31cc8b3"}