{"uid":"cap_K9nQduf2mrK38URQYKcFO","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-73f8ff5f","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://serp-extract.agentdiet.dev/v1/mcp-gateway)","url":"https://serp-extract.agentdiet.dev/v1/mcp-gateway?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_hvIqL1QlKALKcSW79v_pn","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"serp-extract.agentdiet.dev","brandSlug":"serp-extract-agentdiet-dev-mpp","brandBaseUrl":"https://serp-extract.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes to 500+ MCP servers and A2A tools via a single meta-router endpoint with token compression and prompt firewall protection","exampleAgentPrompt":"Search the MCP tool registry for available agents that handle SEC filings and company enrichment, then return the best matching endpoints with their capabilities.","exampleUseCases":[{"title":"Agent tool discovery for security audits","prompt":"Find me all available MCP servers or A2A tools that can do GitHub security audits or smart contract scanning — I want to see what's in the registry before I wire up my swarm."},{"title":"Swarm router for context compression","prompt":"Search the MCP gateway for tools that support context compression or token pruning — my agent pipeline is hitting token limits and I need to find the right tool to plug in."},{"title":"Safe-proxy lookup for external MCP endpoint","prompt":"Can you check if this endpoint URL is verified and safely routable through the MCP gateway? I want to make sure it's in the index before my agent calls it: https://some-external-tool.example.com/v1/mcp"}],"resultDescription":"Returns a list of matched MCP servers and A2A tools relevant to the capability query, including endpoint URLs, descriptions, and token-compressed metadata. When given an endpoint URL to verify, confirms whether it is indexed and safe to proxy through the swarm router.","failureModes":["Empty or vague query returns no matches or low-confidence results","Endpoint URL not found in the 500+ server index returns a not-found signal","Prompt injection attempts blocked by Prompt-Guard firewall with an error response","Payment not processed (x402) results in 402 HTTP response blocking the call","Network timeout if upstream MCP servers are slow to respond during routing"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability without hardcoding individual endpoints. Ideal for multi-agent swarms that need a single connection point to route across hundreds of tools, or when token budget is constrained and 85% compression is needed. Also use it to verify whether a third-party MCP endpoint is safe to call before proxying through it.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:30:54.677Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}