{"uid":"cap_nuirbjzET2cvuHkl165HS","slug":"x402broker-com-universal-a2a-mcp-tool-discovery-safe-proxy-swarm-router-cf44c517","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://x402broker.com/v1/tool-broker)","url":"https://x402broker.com/v1/tool-broker?utm_source=zero.xyz","method":"POST","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_WE3oQUr_4DCcGRa57h1oq","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"x402broker.com","brandSlug":"x402broker-com-mpp","brandBaseUrl":"https://x402broker.com","brandDocsUrl":null,"whatItDoes":"Searches and routes across 500+ indexed MCP servers and A2A tools via a single connection, with token compression and prompt firewall protection","exampleAgentPrompt":"Search the MCP and A2A tool index for any available tools that handle SEC filings or financial data enrichment — I want to find the best single tool to route my agent through.","exampleUseCases":[{"title":"Discovering tools for a new agent pipeline","prompt":"I'm building a swarm of AI agents and need to find which MCP servers or A2A tools support GitHub security auditing — can you search the tool index and tell me what's available?"},{"title":"Single-connection multi-tool routing","prompt":"Instead of connecting to dozens of MCP servers separately, can you search the meta-router for all tools that handle company enrichment and B2B lead data, and route my request through the best one?"},{"title":"Verifying a specific endpoint's capabilities","prompt":"Can you check the tool discovery index to see if there's an MCP tool at a specific endpoint URL that handles context compression, and confirm it's safe to call?"}],"resultDescription":"Returns a list of matching MCP servers and A2A tools from the 500+ indexed registry, including tool metadata, capability descriptions, and routing information — delivered with 85% token compression and screened through the Prompt-Guard firewall.","failureModes":["Query too vague — returns no matches or overly broad results","Queried endpoint URL not found in index — returns empty result","Rate limit exceeded — HTTP 429 response","Payment not processed — HTTP 402 if x402 payment fails","Index temporarily out of sync with upstream MCP servers — stale results returned"],"whenToPreferThis":"Choose this endpoint when an agent needs to discover the right tool from a large catalog without maintaining individual connections to hundreds of MCP servers. Ideal for multi-agent swarms that need dynamic tool routing, or when token efficiency is critical and you want a single trusted proxy with firewall protection rather than direct raw MCP connections.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:33:12.853Z","isFirstParty":false,"canonicalSlug":"x402broker-com-universal-a2a-mcp-tool-discovery-safe-proxy-swarm-router-1b29e69c"}