{"uid":"cap_7J6u59OCyE3kz_Vz31Cec","slug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-d3835e7f","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/tool-broker)","url":"https://workflows.agentdiet.dev/v1/tool-broker?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_sGKgJb64lEIP41txtBs8Z","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 metadata via a single connection","exampleAgentPrompt":"Search the MCP and A2A tool index for tools that can do 'company enrichment' — I want to find what's available across the 500+ server catalog with token-compressed results.","exampleUseCases":[{"title":"Agent swarm tool bootstrap","prompt":"I'm building a swarm of AI agents and need to know which MCP servers handle SEC filings and GitHub security audits — can you search the meta-router index for those capabilities and give me the compressed tool list?"},{"title":"Safe proxy verification for untrusted endpoint","prompt":"Before my agent connects to this MCP endpoint at https://some-mcp-server.example.com, can you run it through the tool-broker to verify it and check it against the Prompt-Guard firewall?"},{"title":"Capability discovery for new agent pipeline","prompt":"I'm setting up a new autonomous pipeline and need tools for context compression and B2B lead enrichment — search the A2A and MCP index to find what's available so I can wire them into my workflow."}],"resultDescription":"Returns a compressed (85% token reduction) list of matching MCP servers or A2A tools from a 500+ server index, including tool metadata and Prompt-Guard firewall safety status for the queried capability or endpoint URL.","failureModes":["Empty result set if query matches no indexed tools","Endpoint URL verification may return unsafe/flagged status if Prompt-Guard detects injection","Rate limiting or 402 payment required errors if quota exceeded","Malformed query with minLength < 1 returns validation error","Index may not reflect newly added MCP servers that haven't been crawled yet"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools support a given capability without maintaining its own index, especially when token budget is a concern (85% compression), safety vetting of tool responses is required (Prompt-Guard), or when building swarm architectures that need single-connection access to hundreds of tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:01.361Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-9abf6654"}