{"uid":"cap_RDzuD14MnYZzgf-_gx6jT","slug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-fecb477f","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/crypto-alpha-dag)","url":"https://preflight.agentdiet.dev/v1/crypto-alpha-dag?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_A_Vv333xXft2Wr6vvnsS0","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 by capability query and returns token-compressed, prompt-injection-safe tool metadata for agent routing.","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that handles 'SEC filings' — I need to find and route to the right tool for fetching company financial documents.","exampleUseCases":[{"title":"Routing agent swarm to right tools","prompt":"I'm building a multi-agent pipeline — can you search the MCP tool index for anything that handles 'GitHub security audits' so I know which server to route my code-review agent to?"},{"title":"Verifying a known MCP endpoint","prompt":"I have this endpoint URL — can you verify it against the MCP tool registry to confirm it's a legit, safe-proxied server before my agent starts calling it?"},{"title":"Discovering context compression tools","prompt":"Find me any MCP servers in the index that specialize in context compression or token budget reduction — I need to cut my agent's token usage significantly."}],"resultDescription":"Returns a token-compressed (up to 85% reduction) list of matching MCP servers and A2A tools including their capability descriptions, routing metadata, and Prompt-Guard safety status, filtered by the submitted query or endpoint URL.","failureModes":["Empty or vague query returns zero or low-relevance results","Submitted endpoint URL not found in the index returns null match","Query too broad returns overwhelming unranked results","Payment not processed (HTTP 402) if x402 credentials are missing or insufficient","Network timeout if the meta-router index is being refreshed"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to delegate a sub-task to, especially in swarm or multi-agent architectures where capability routing is automated. Prefer it over hardcoded tool registries when the ecosystem of available tools is large (500+) and changes frequently, or when prompt-injection safety screening of tool metadata is required before routing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:25.611Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-f8f7c79e"}