{"uid":"cap_xQPGsVUKuPJnYBO-pJukR","slug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-978699c0","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/a2a-mesh)","url":"https://preflight.agentdiet.dev/v1/a2a-mesh?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_Ipp0dlCm-hFUE-CdhuVXy","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 an index of 500+ MCP servers and A2A tools to find, verify, and route to the right capability, with built-in prompt-injection firewall and token compression.","exampleAgentPrompt":"Can you search the A2A and MCP tool index for anything that handles SEC filings or company enrichment, and tell me which servers are available?","exampleUseCases":[{"title":"Discovering tools for a new agent pipeline","prompt":"I'm building an agent that needs to do domain OSINT and email verification — can you search the MCP index for tools that cover those capabilities?"},{"title":"Verifying a suspicious third-party endpoint","prompt":"Before my agent calls this endpoint https://some-mcp-server.example.com/tool, can you check whether it's a known and verified MCP server in the index?"},{"title":"Finding compression-capable routing for a swarm","prompt":"I want to reduce token overhead in my multi-agent swarm — can you find MCP servers or A2A tools that support context compression so I can route through them?"}],"resultDescription":"Returns a list of matched MCP servers and A2A tools relevant to the query, with tool metadata, safety status from the Prompt-Guard firewall, and token-compressed routing information. May also return a verification verdict if an endpoint URL was submitted.","failureModes":["No matching tools found for the query — returns empty result set","Endpoint URL submitted for verification is unknown — returns unverified/unknown status","Query string is missing or empty — returns 400 validation error","Downstream MCP index temporarily unavailable — may return 503 or partial results","Ambiguous query returns low-confidence or mixed-relevance matches"],"whenToPreferThis":"Choose 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 tool. Also useful for verifying whether a third-party endpoint is safe before routing traffic to it, or when operating a multi-agent swarm that needs to minimize token overhead via compressed routing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:22:17.670Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-f8f7c79e"}