{"uid":"cap_r3TZ39W7A-TFwUk5G62vA","slug":"x402-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-bae06e3a","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/execute)","url":"https://x402-audit.agentdiet.dev/v1/execute?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_B0fL7whal-xbs3lJ7YtdF","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 queries across 500+ indexed MCP servers and A2A tools with token compression and prompt-injection firewall protection","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that handles SEC filings or company enrichment — I need the best available tool routed through the safe proxy.","exampleUseCases":[{"title":"Discovering tools for SEC filings","prompt":"Find me an MCP server or A2A tool that can pull SEC filings data — I want to know what's available in the index and get routed to the best option."},{"title":"Routing GitHub security audit capability","prompt":"Search the tool index for something that does GitHub security audits or code vulnerability scanning — I want to use it through the safe proxy with prompt-injection protection."},{"title":"Finding context compression tools","prompt":"What MCP servers in your index can help with context compression or token budget management? Route me to the best one with the 85% compression feature."}],"resultDescription":"Returns a list of matching MCP servers or A2A tools from the 500+ indexed catalog, including routing information, compressed responses (up to 85% token reduction), and safety-filtered output from the Prompt-Guard firewall. May include tool metadata, endpoint URLs, capability descriptions, and recommended routing paths.","failureModes":["Empty or vague query returns low-relevance tool matches","Query for an uncovered capability returns no results","Prompt-Guard firewall may block or flag queries containing injection-like patterns","Network timeout if multiple downstream MCP servers are polled","Payment failure (HTTP 402) if x402 USDC payment is not attached or insufficient","Malformed query (minLength not met) returns validation error"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool can fulfill an unfamiliar capability at runtime, rather than hardcoding specific tool endpoints. Ideal for swarm architectures where agents must self-select the right downstream tool. Prefer this over direct tool calls when you need prompt-injection safety screening, token budget management across multiple tools, or unified access to 500+ tools through a single connection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:32:54.603Z","isFirstParty":false,"canonicalSlug":"x402-audit-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-7322c524"}