{"uid":"cap_hH2J2IEAYhwnlwB4njZch","slug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-ddfb1ecb","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/web-rag-shield-dag)","url":"https://preflight.agentdiet.dev/v1/web-rag-shield-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_iOjmEF88CFAX2klklnxO0","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 across 500+ indexed MCP servers and A2A tools using a single connection, with token compression and prompt-injection firewall protection.","exampleAgentPrompt":"Search the agentdiet tool index for MCP servers that handle SEC filings or company enrichment — I need the best available options with token-compressed descriptions so I can pick one for my workflow.","exampleUseCases":[{"title":"Agent swarm tool selection","prompt":"I'm building a multi-agent swarm and need to find the best MCP tools for GitHub code security auditing — can you search the tool index and return the top options with compressed descriptions?"},{"title":"Safe endpoint URL verification","prompt":"Before my agent calls this endpoint — https://some-mcp-server.example.com/v1/query — can you run it through the tool router to verify it's indexed, safe, and not flagged for prompt injection?"},{"title":"Capability gap discovery","prompt":"My agent needs to handle DEX token intelligence and on-chain risk analysis but I don't know which MCP servers cover those capabilities — can you search the 500+ tool index and tell me what's available?"}],"resultDescription":"Returns a list of matching MCP servers or A2A tools relevant to the query, with token-compressed descriptions (85% compression), safety/firewall status, and routing metadata so the agent can select and connect to the right tool.","failureModes":["Query string is empty or too vague — returns no results or generic matches","Queried endpoint URL is not indexed — returns not-found or unverified status","Firewall flags the query as containing prompt-injection patterns — request is blocked","Service temporarily unavailable due to upstream MCP index sync issues","Payment not processed (x402) — returns 402 Payment Required before results are delivered"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover, compare, or route to the right MCP server or A2A tool from a large index without manually curating integrations. Ideal for swarm orchestration, capability gap filling, and safe proxying where prompt-injection protection is required. Prefer this over manually hardcoded tool lists or direct MCP connections when the target tool is unknown or untrusted.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:04.943Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-f8f7c79e"}