{"uid":"cap_JXadqXOuQIV6My7852GVH","slug":"github-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-6d21b586","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/tool-search)","url":"https://github-audit.agentdiet.dev/v1/tool-search?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_OD5vbDQAcUsRskuI9HAwo","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, returning matching endpoints with token-compressed results via a Prompt-Guard firewall proxy","exampleAgentPrompt":"Search across all available MCP servers and A2A tools to find me something that can do GitHub security auditing — I need a tool that handles repository analysis.","exampleUseCases":[{"title":"Discovering context compression tools","prompt":"I want to find MCP tools or A2A agents that handle context compression — search for anything related to token reduction or summarization so I can wire one into my pipeline."},{"title":"Finding SEC filings capability","prompt":"Search the MCP tool index for anything that can pull SEC filings or EDGAR data — I need to route my agent to a tool that can fetch financial disclosures for a public company."},{"title":"Routing swarm agents to right tool","prompt":"My agent swarm needs to find a tool for B2B lead enrichment — search across all indexed MCP servers for something that extracts emails and tech stack signals from a company domain."}],"resultDescription":"Returns a list of matching MCP servers or A2A tools relevant to the capability query, with compressed metadata (85% token reduction), endpoint URLs, descriptions, and routing information, filtered through a Prompt-Guard firewall to block adversarial content.","failureModes":["Empty or too-short query returns no results or validation error","Query too broad returns low-relevance tool matches","Payment failure (x402) if USDC balance insufficient — returns 402 status","Firewall blocks query if flagged as adversarial by Prompt-Guard","Timeout if meta-index is unavailable or overloaded","Invalid idempotency key format returns 400 error"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hard-coding a specific API. Ideal for swarm architectures where agents must self-route to the right tool at runtime, or when building meta-agents that orchestrate other agents across a large tool ecosystem. Prefer this over manual tool registries when the tool landscape changes frequently or when token efficiency in discovery is important.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:30:50.565Z","isFirstParty":false,"canonicalSlug":"github-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-b9feed5d"}