{"uid":"cap_AW5mNx58OELFxBsu_tjZB","slug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-4f3ddbb5","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/api)","url":"https://workflows.agentdiet.dev/api?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_eVk8OT___E7kvRXFddEms","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 a meta-index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-screened tool matches for agent routing.","exampleAgentPrompt":"Search the MCP and A2A tool index for servers that handle 'SEC filings' — I need to find the right tool to route my agent to for pulling company financial disclosures.","exampleUseCases":[{"title":"Agent swarm capability routing","prompt":"I'm building an agent swarm and need to find which MCP servers in the index support 'company enrichment' — can you search the meta-router and return the best matches so I know where to route my lead-research agents?"},{"title":"Discovering context compression tools","prompt":"Search the A2A and MCP tool index for anything related to 'context compression' — I want to reduce token usage in my agent pipeline and need to know what tools are available."},{"title":"Verifying a specific MCP endpoint","prompt":"Can you check whether this endpoint URL is listed and verified in the MCP tool registry: https://some-mcp-server.example.com/api — I want to make sure it's safe to proxy through before my agent calls it."}],"resultDescription":"Returns a compressed list of matching MCP servers or A2A tools relevant to the query, including tool names, capability descriptors, and firewall-screened safety status, with up to 85% token reduction compared to raw tool manifests.","failureModes":["Empty or vague query returns no matches or low-relevance results","Unknown or unindexed endpoint URL returns not-found response","Prompt-Guard firewall blocks queries containing injection patterns","Rate limiting or payment failure returns 402 error","Index may not reflect newly added MCP servers in real time"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, especially in multi-agent swarm architectures where routing decisions must be made at runtime. Prefer it over hardcoded tool lists when the capability space is broad or frequently changing, and when token efficiency matters due to the 85% compression. Also use it to verify whether a specific endpoint URL is safe and indexed before proxying through it.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:23.199Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-9abf6654"}