{"uid":"cap_2JVKr0ICrRu5gtpbDfpBM","slug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-93ec72d4","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://workflows.agentdiet.dev/v1/security-audit-dag)","url":"https://workflows.agentdiet.dev/v1/security-audit-dag?utm_source=zero.xyz","method":"POST","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_0Pjx1QkHMYtiYpshwq63B","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"workflows.agentdiet.dev","brandSlug":"workflows-agentdiet-dev-mpp","brandBaseUrl":"https://workflows.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered results via a single connection","exampleAgentPrompt":"Search the MCP and A2A tool index for any servers or agents that can handle 'SEC filings' — I need to find the best available tool for that capability and get back a compressed summary of what's available.","exampleUseCases":[{"title":"Discovering tools for on-chain risk","prompt":"Search through the MCP tool index for any agents or servers that handle on-chain risk or DEX token intelligence — give me a compressed list of the best matches."},{"title":"Finding a GitHub security audit agent","prompt":"I need to find an MCP server or A2A tool that can run GitHub security audits — can you query the tool discovery index for 'github security' and tell me what comes back?"},{"title":"Verifying a known MCP endpoint","prompt":"Can you check the tool discovery index to see if https://some-mcp-server.example.com is listed and compliant — query it against the meta-router to verify it's legit."}],"resultDescription":"Returns a structured object containing matched MCP servers and A2A tools relevant to the query, with metadata compressed by up to 85% and filtered through a Prompt-Guard firewall to remove malicious or unsafe content. Results may include tool names, capability descriptions, endpoint URLs, and routing metadata.","failureModes":["Empty or vague query returns no matches or irrelevant results","Queried endpoint URL not found in the index returns empty result set","Prompt-Guard firewall blocks queries containing adversarial injection patterns","Service unavailable or 402 payment required if x402 payment not attached","Malformed query (minLength violation) returns 400 validation error","Index may not reflect newly added MCP servers if not yet crawled"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to discover which MCP servers or A2A tools are available for a given capability without connecting to each individually. It is especially useful for swarm orchestration scenarios where a single query needs to fan out across 500+ tools, when token budget is tight (85% compression), or when safety filtering of tool responses is required via the built-in Prompt-Guard firewall. Prefer it over direct MCP server connections when the target tool is unknown and needs to be discovered first.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:43:07.353Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-9abf6654"}