{"uid":"cap_MttEwMX0_JIf2ZRVYFi7J","slug":"github-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-ec49957f","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://github-audit.agentdiet.dev/v1/x402-gateway)","url":"https://github-audit.agentdiet.dev/v1/x402-gateway?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_iFVRX9SuVqpdQzNonMS4M","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"github-audit.agentdiet.dev","brandSlug":"github-audit-agentdiet-dev-mpp","brandBaseUrl":"https://github-audit.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, routing agent requests through a token-compressed, prompt-firewalled meta-router","exampleAgentPrompt":"Search the MCP and A2A tool index for any available endpoints that handle SEC filings or company financial data — I need something I can wire into my research agent.","exampleUseCases":[{"title":"Discover tools for GitHub security auditing","prompt":"Search the tool index for any MCP servers or A2A endpoints that can audit GitHub repositories for security issues — I want to add one to my code review agent pipeline."},{"title":"Find on-chain risk analysis endpoints","prompt":"Can you query the swarm router to find available tools that do on-chain risk scoring or DEX token intelligence? I'm building a DeFi monitoring agent and need something pre-vetted."},{"title":"Locate prompt firewall-compatible tools","prompt":"Search the MCP tool discovery index for endpoints that include prompt injection protection or a prompt guard firewall — I need to make sure any tool I route through is safe for production."}],"resultDescription":"Returns a list of matching MCP servers or A2A tool entries from a 500+ entry index, with token-compressed descriptions, endpoint URLs, capability tags, and routing metadata. Results are pre-filtered through a Prompt-Guard firewall to flag unsafe or injection-prone endpoints.","failureModes":["Empty query string returns a 400 validation error","Query matches no indexed tools, returning an empty results list","Upstream MCP index temporarily unavailable, causing a 503 or timeout","Highly ambiguous queries return low-relevance results","Payment not fulfilled (HTTP 402) if x402 micropayment is not completed"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover and route to external MCP or A2A tools without maintaining its own tool registry. It is especially useful when token budget is limited (85% compression), when security vetting of upstream tools is required, or when building swarm-style multi-agent systems that need to delegate to specialized sub-agents. Prefer over manual tool catalogs or self-maintained registries.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:57.902Z","isFirstParty":false,"canonicalSlug":"github-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-b9feed5d"}