{"uid":"cap_YAB1t7i51qzquCy-vCBSz","slug":"mcp-security-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-3e3933ac","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://mcp-security.agentdiet.dev/v1/universal-mcp-gateway)","url":"https://mcp-security.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_Q9dAYkgp81I0i87aHBefv","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mcp-security.agentdiet.dev","brandSlug":"mcp-security-agentdiet-dev-mpp","brandBaseUrl":"https://mcp-security.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, returning token-compressed results with prompt-injection firewall protection","exampleAgentPrompt":"Can you search the universal MCP gateway for tools that do context compression or token reduction — I want to find which servers are available for that capability?","exampleUseCases":[{"title":"Finding a tool for SEC filing lookups","prompt":"Search the MCP tool index for anything that can pull SEC EDGAR filings or 10-K financial data — I need to know which server handles that capability."},{"title":"Verifying a suspicious MCP endpoint URL","prompt":"Can you check this endpoint URL against the universal MCP gateway to verify it's legit and not a prompt injection risk: https://some-tool.example.com/mcp"},{"title":"Discovering tools for on-chain token intelligence","prompt":"I need to find MCP servers in the index that cover DEX token intelligence or on-chain smart contract analysis — what's available?"}],"resultDescription":"Returns a token-compressed (up to 85% reduction) list of matching MCP servers or A2A tools relevant to the query, including endpoint metadata, capability descriptions, and prompt-guard firewall validation status. For URL verification queries, returns safety and authenticity signals about the provided endpoint.","failureModes":["Empty query string returns 400 validation error","Query matches no indexed tools, returns empty result set","Endpoint URL verification target is unreachable or times out","Payment not processed via x402, returns 402 Payment Required","Rate limiting exceeded returns 429 error","Gateway index temporarily unavailable returns 503"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hardcoding tool selections. Especially valuable when building swarm agents that need runtime tool routing, when verifying unknown endpoint URLs for prompt-injection safety, or when the agent needs to find a tool outside its current context window with minimal token overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:51:21.355Z","isFirstParty":false,"canonicalSlug":"mcp-security-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-88de6323"}