{"uid":"cap_nCiCSRwQFYJUOuyI9xOpt","slug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b92383ac","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/a2a-router)","url":"https://workflows.agentdiet.dev/v1/a2a-router?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_dna0mIdpYGK4vRU7blM4r","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 an index of 500+ MCP servers and A2A tools by capability query and returns compressed, firewall-filtered results for agent routing","exampleAgentPrompt":"Search the A2A and MCP tool index for any available agents or servers that handle SEC filings and company enrichment, and give me a compressed list of what's out there.","exampleUseCases":[{"title":"Swarm router for agent orchestration","prompt":"I'm building a multi-agent workflow and need to find which MCP servers in your index can handle GitHub security audits — can you search for that and route me to the best options?"},{"title":"Capability discovery for new integrations","prompt":"Search your 500+ tool index for any A2A agents or MCP servers that do context compression or token reduction, so I can plug one into my pipeline."},{"title":"Endpoint verification before integration","prompt":"Can you verify whether this endpoint URL is a legitimate indexed MCP server in your router before I integrate it into my agent swarm?"}],"resultDescription":"Returns a compressed (up to 85% token reduction) list of matching MCP servers or A2A tools from the 500+ tool index, filtered through the Prompt-Guard firewall, including tool metadata and routing recommendations relevant to the capability query.","failureModes":["Empty query string returns validation error","No matching tools found for obscure capability queries","Endpoint URL verification returns unknown or unindexed result","Payment required (HTTP 402) if x402 micropayment not attached","Index may not reflect newly added MCP servers in real time"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability without maintaining its own tool registry. It is especially useful for swarm orchestration, meta-routing across heterogeneous agent ecosystems, or when token budget is tight and compressed discovery results are needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:36.539Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-9abf6654"}