{"uid":"cap_sSmuoabM0IWOQA6puJO3V","slug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-eac9fa4d","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://preflight.agentdiet.dev/v1/universal-mcp-gateway)","url":"https://preflight.agentdiet.dev/v1/universal-mcp-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_zCyLnRXbglUQKW3tDVVGz","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"preflight.agentdiet.dev","brandSlug":"preflight-agentdiet-dev-mpp","brandBaseUrl":"https://preflight.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes to 500+ MCP servers and A2A tools via a single meta-router endpoint with token compression and prompt-injection firewall.","exampleAgentPrompt":"Search your universal MCP gateway for tools that handle SEC filings and company enrichment — I want to find the best available endpoint for financial intelligence on public companies.","exampleUseCases":[{"title":"Agent swarm tool bootstrapping","prompt":"I'm setting up a new agent swarm and need to discover all available MCP tools for web distillation, on-chain risk, and GitHub auditing — can you query the universal gateway with those capabilities and show me what's available?"},{"title":"Safe proxy for untrusted MCP endpoint","prompt":"Before my agent connects to this MCP server at https://some-third-party.example.com/mcp, can you run it through the universal gateway's Prompt-Guard firewall to verify it's safe and not serving injected payloads?"},{"title":"Token-efficient multi-tool discovery","prompt":"I need to find MCP tools for context compression to reduce my agent's token usage — search the universal gateway for 'context compression' and tell me which endpoints are available and what they do."}],"resultDescription":"Returns a list of matching MCP servers or A2A tools relevant to the search query, including tool metadata, endpoint URLs, capability descriptions, and firewall-validated safety signals — all with up to 85% token compression applied to the response payload.","failureModes":["No tools found matching the query — returns empty result set or low-confidence matches","Invalid or unsafe endpoint URL — firewall blocks and returns rejection signal","Query too vague — returns broad or irrelevant tool matches","Payment required (HTTP 402) if x402 micropayment header is missing or insufficient","Upstream MCP server unreachable — partial results returned with error flags"],"whenToPreferThis":"Choose this endpoint when your agent needs to dynamically discover or route to any of 500+ MCP/A2A tools without maintaining individual integrations, especially when token budget is a concern (85% compression) or when you need to validate external tool safety before connecting. Prefer it over direct MCP server connections when building agent swarms that need flexible, multi-tool routing from a single connection point.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:19:19.208Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-f8f7c79e"}