{"uid":"cap_tRNHgP65nVVoKOGj463uh","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-839b0b31","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/crypto-alpha-dag)","url":"https://serp-extract.agentdiet.dev/v1/crypto-alpha-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_oppb597HzrUF2ov1PeVax","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 a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered tool metadata for agent routing","exampleAgentPrompt":"Search the MCP and A2A tool registry for any available agents or servers that handle SEC filings and company enrichment, and give me the top matches with compressed descriptions.","exampleUseCases":[{"title":"Routing agent to compression tool","prompt":"I need to find an MCP server that specializes in context compression — search the tool registry for 'context compression' and tell me what's available so I can wire my swarm to the right endpoint."},{"title":"Discovering crypto intelligence agents","prompt":"Look up available A2A tools or MCP servers in the registry that handle DEX token intelligence or on-chain risk analysis — I want to route my crypto research agent to the best available option."},{"title":"Verifying an agent endpoint before use","prompt":"Before I connect to this agent endpoint https://some-agent.example.com/api, can you check the tool registry to verify it's a legitimate, indexed MCP or A2A tool and tell me what it does?"}],"resultDescription":"A filtered, token-compressed list of matching MCP servers or A2A tools relevant to the query, with metadata such as capability descriptions, endpoint URLs, and routing information, passed through a Prompt-Guard firewall to remove malicious content.","failureModes":["Empty query string returns 400 validation error","No matching tools found for niche or misspelled capability query returns empty results","Upstream MCP index unavailable returns 503 or timeout","Payment not processed (x402) blocks access and returns 402 Payment Required","Overly broad queries may return too many results with low relevance"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover and route to specialized MCP servers or A2A tools at runtime, rather than hardcoding specific tool URLs. It is especially valuable in swarm orchestration scenarios where the best downstream tool for a given capability is not known in advance, or when you need firewall-filtered, token-efficient tool metadata across a broad index of 500+ servers in a single connection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:22:49.137Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}