{"uid":"cap_WlnG4ixrFN0HsNPdroG0q","slug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-97ae06d2","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/universal-mcp-gateway)","url":"https://workflows.agentdiet.dev/v1/universal-mcp-gateway?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_LUBdBYSPIuU24bMhnPQJw","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 and routes across 500+ MCP servers and A2A tools via a single connection, with token compression and prompt-injection firewall","exampleAgentPrompt":"Search the universal MCP gateway for any tools or servers that handle SEC filings and company enrichment — I want a compressed list of what's available with safety screening.","exampleUseCases":[{"title":"Discover tools for GitHub security auditing","prompt":"Find me all MCP servers or A2A tools that can handle GitHub security scanning and code auditing — show me what's available with compressed descriptions so I don't blow my token budget."},{"title":"Validate a specific MCP endpoint before use","prompt":"Can you check whether this endpoint URL is a legitimate, known MCP server: https://some-mcp-service.example.com/v1/tool — I want to verify it before my agent starts calling it."},{"title":"Route capability search for DeFi intelligence","prompt":"I need to find which MCP tools or A2A agents in the index can provide real-time DeFi and DEX trading intelligence — search the meta-router and give me the best matches."}],"resultDescription":"Returns a filtered, token-compressed list of matching MCP servers and A2A tools relevant to the query, including metadata about each tool's capabilities, and safety screening results from the Prompt-Guard firewall. If an endpoint URL is supplied, returns a verification result indicating whether it is a recognized and safe MCP endpoint.","failureModes":["Query too vague — returns no relevant tools or overly broad matches","Endpoint URL not found in index — returns unrecognized or unverified status","Rate limit or payment failure via x402 — returns 402 Payment Required","Downstream MCP server unreachable — routing result may be partial","Prompt-Guard firewall blocks a query flagged as potentially malicious"],"whenToPreferThis":"Choose this endpoint when an agent needs to discover which MCP servers or A2A tools exist for a given capability without knowing the specific endpoint in advance, especially when token budget is a concern (85% compression) or when safety screening against prompt injection is required before routing. Prefer it over direct tool calls when building swarm or orchestration agents that need a single unified index across hundreds of MCP servers.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:06.013Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-9abf6654"}