{"uid":"cap_Rl_IvJTF_Dvv2fmQGJZdB","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-1bdfa4ac","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/b2b-osint-dag)","url":"https://serp-extract.agentdiet.dev/v1/b2b-osint-dag?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["query"],"properties":{"limit":{"type":"integer","default":20,"maximum":100,"minimum":1,"description":"Maximum number of items to return per page (1-100)"},"query":{"type":"string","minLength":1,"description":"Capability search query (e.g. 'context compression', 'github security', 'sec filings', 'company enrichment') or endpoint URL to verify"},"cursor":{"type":"string","description":"Opaque pagination cursor for fetching the next page"}}},"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_ZtVVeONFZtANPDBEHQMfO","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 an index of 500+ MCP servers and A2A tools by capability keyword or URL, returning compressed, firewall-screened results to help agents discover and route to the right tool.","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that does 'company enrichment' — I want to find the right tool to plug into my agent swarm without wasting tokens.","exampleUseCases":[{"title":"Agent swarm tool discovery","prompt":"I'm building an agent swarm and need to find MCP servers that support SEC filings or financial data — can you search the tool index and tell me what's available?"},{"title":"Capability routing for new agent","prompt":"My agent needs to do B2B lead enrichment but I don't know which MCP tool to use — can you search for 'lead enrichment' and return the best matching endpoints with their descriptions?"},{"title":"Verify A2A endpoint compliance","prompt":"Can you check whether this URL is a valid, compliant A2A or MCP tool before I connect my agent to it? https://some-mcp-server.example.com/v1/tool"}],"resultDescription":"Returns a structured object listing matching MCP servers and A2A tools for the given capability query, including endpoint URLs, compressed descriptions (85% token reduction), and Prompt-Guard firewall screening status. If a URL is provided, returns compliance and verification results for that specific endpoint.","failureModes":["Empty query string returns validation error","Unrecognized or highly niche capability query returns zero matches","Provided endpoint URL is unreachable or returns non-standard responses","Token compression may truncate rare or verbose tool descriptions","Rate limiting or payment failure (HTTP 402) if x402 payment is not correctly configured"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to call for a given capability — especially useful in multi-agent orchestration, swarm routing, or when building systems that need to adapt to new tools at runtime. Prefer it over manual tool registries when you need firewall-screened, token-compressed results across a broad index of 500+ tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:34.703Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}