{"uid":"cap_v4ZJgpfLNZ7VtaF5k15s9","slug":"x402broker-tool-broker-universal-mcp-a2a-meta-router-4e8cefb7","name":"x402broker Tool Broker — Universal MCP & A2A Meta-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":"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":["x402"],"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":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"},{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oULC43a7fxx8t5f2bjDpE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null},{"uid":"pm_hQoPnZTrEIV0rNLj60Y49","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Discovers, proxies, and routes queries across 500+ MCP servers and A2A tools via a single connection, with token compression and prompt-injection firewall.","exampleAgentPrompt":"Search for MCP or A2A tools that can handle real-time stock price lookups — find me the best available option across all indexed servers using a GET query.","exampleUseCases":[{"title":"Discovering tools for a new agent capability","prompt":"I'm building an AI agent and need to find an MCP tool that can handle PDF parsing — can you search across all indexed MCP servers and A2A tools to find the best one available?"},{"title":"Single-connection swarm routing for multi-tool tasks","prompt":"I need to route my agent's request for sentiment analysis through a single connection without having to manage multiple MCP server connections — can you find and proxy the right tool for me?"},{"title":"Token-efficient tool lookup for resource-constrained agents","prompt":"My agent is running low on context budget — can you search for a web search tool across the 500+ indexed MCP servers and return a compressed result so I don't blow my token limit?"}],"resultDescription":"Returns matched tool metadata, proxied tool responses, or routed A2A/MCP results compressed by up to 85% in token size, filtered through a Prompt-Guard firewall to prevent injection attacks.","failureModes":["No matching tool found for the given query — returns empty or null tool list","Query parameter missing or malformed — returns 400 validation error","Downstream MCP server or A2A tool unavailable — may return timeout or 502","Payment not processed — returns 402 Payment Required","Prompt-Guard firewall blocks suspicious query — returns rejection with firewall notice"],"whenToPreferThis":"Choose this endpoint when an agent needs to discover or route to any of 500+ MCP servers or A2A tools through a single connection, especially when token budget is constrained (85% compression) or when prompt-injection safety is required. Prefer over direct MCP connections when you don't know which specific server has the capability you need.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:43:03.278Z","isFirstParty":false,"canonicalSlug":"x402broker-tool-broker-universal-mcp-a2a-meta-router-4e8cefb7"}