{"uid":"cap_wi74d_aUpCvaJmOBOoHTr","slug":"x402-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-430b96d1","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://x402-audit.agentdiet.dev/v1/agent-tool-marketplace)","url":"https://x402-audit.agentdiet.dev/v1/agent-tool-marketplace?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_JDOAaglfHZDT_zxHAE_AC","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"x402-audit.agentdiet.dev","brandSlug":"x402-audit-agentdiet-dev-mpp","brandBaseUrl":"https://x402-audit.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes to 500+ MCP servers and A2A agent tools via a single meta-router endpoint with token compression and prompt injection protection.","exampleAgentPrompt":"Search the MCP tool marketplace for any agents or servers that handle SEC filings and company enrichment — I want to find the best tool available and route through the safe proxy.","exampleUseCases":[{"title":"Finding MCP tools for GitHub security","prompt":"Can you search the agent tool marketplace for MCP servers that do GitHub security audits? I want to find something that can scan repos for vulnerabilities."},{"title":"Routing to a context compression tool","prompt":"Find me an MCP tool that does context compression — I'm trying to reduce token usage in my agent pipeline and want to see what's available in the marketplace."},{"title":"Discovering A2A endpoints for lead enrichment","prompt":"Search for A2A tools that handle B2B lead enrichment or domain OSINT — I want to route my sales agent to the best one available."}],"resultDescription":"Returns a list of matching MCP servers and A2A tools relevant to the capability query, with metadata about each tool, token-compressed descriptions, and verified endpoint status. If an endpoint URL is provided as the query, returns compliance and verification details for that specific endpoint.","failureModes":["Empty query string returns validation error","Query too niche or misspelled may return zero results","External MCP servers in the index may be temporarily unavailable","Rate limiting or payment failure (x402) may block access","Prompt injection attempts are blocked by Prompt-Guard firewall returning a rejection response"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to use for a given capability, rather than hard-coding a specific tool. Ideal for swarm orchestration, agentic pipelines that need to route tasks to the best available tool, or when you want a single connection point to access 500+ tools with token compression. Prefer this over direct MCP server connections when you need prompt injection protection or want to verify an endpoint's compliance before routing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:31.120Z","isFirstParty":false,"canonicalSlug":"x402-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-7322c524"}