{"uid":"cap_js6HZ9YOcowrMrygQ4KM_","slug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-52fb8032","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/security-audit-dag)","url":"https://preflight.agentdiet.dev/v1/security-audit-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_THLEdDrxxpiYhYR_izzRE","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 a meta-index of 500+ MCP servers and A2A tools to find matching capabilities, verify endpoint safety, and route agent queries through a prompt-injection firewall with 85% token compression.","exampleAgentPrompt":"Search the MCP and A2A tool index for capabilities related to 'SEC filings' and tell me which servers and endpoints are available and safe to call.","exampleUseCases":[{"title":"Discover tools for on-chain risk analysis","prompt":"Search the MCP tool index for any servers or A2A endpoints that handle on-chain risk or smart contract security — I need to find what's available before wiring up my agent."},{"title":"Verify a suspicious endpoint before calling it","prompt":"Before my agent calls this endpoint URL https://some-unknown-server.dev/api/tool, can you check if it's listed and flagged as safe in the MCP directory?"},{"title":"Find compression-capable tools for a token-limited agent","prompt":"My agent is running into context length limits — search the tool discovery index for any MCP servers that support context compression or token budget control."}],"resultDescription":"Returns a ranked list of matching MCP servers or A2A tools with metadata including endpoint URLs, capability descriptions, safety flags from the Prompt-Guard firewall, and token-compressed summaries of what each tool does.","failureModes":["Empty or too-broad query returns unranked or irrelevant tool matches","Queried endpoint URL not found in the index returns no safety verdict","Firewall flags a legitimate endpoint as suspicious (false positive)","Service returns generic object response with no schema guarantees, making downstream parsing brittle","Rate limiting or payment failure (x402) blocks the query"],"whenToPreferThis":"Use this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability, rather than hardcoding tool lists. Especially valuable in swarm or multi-agent architectures where the agent needs to self-assemble a toolchain at runtime. Also prefer this when you need to verify an unknown endpoint's safety before calling it, or when token budget is tight and you need compressed tool descriptions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:24.372Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-f8f7c79e"}