{"uid":"cap_tMcYoCYmBYw6odqq9eecf","slug":"x402broker-com-universal-a2a-mcp-tool-discovery-safe-proxy-swarm-router-cb126403","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/a2a-mesh)","url":"https://x402broker.com/v1/a2a-mesh?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_qQz2ftkDpIL4BGAgJNVt1","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+ MCP servers and A2A tools via a single meta-router connection with token compression and prompt safety filtering.","exampleAgentPrompt":"Search the A2A and MCP tool registry for any servers that can handle SEC filings or financial intelligence — I need to find the right tool to route my agent to.","exampleUseCases":[{"title":"Discover tools for lead enrichment","prompt":"Can you search the MCP tool index for anything that handles B2B lead enrichment or company data — I want to find the right server to wire into my sales agent."},{"title":"Route agent to vulnerability scanner","prompt":"Find me an MCP server or A2A tool that does open-source package vulnerability scanning so I can plug it into my security pipeline."},{"title":"Verify endpoint before routing","prompt":"Check the tool registry at x402broker to see if there's a verified endpoint for DEX whale orderflow analysis — I want to confirm it exists before routing my trading agent to it."}],"resultDescription":"Returns a compressed list of matching MCP servers or A2A tool endpoints relevant to the query, including tool metadata, capability summaries, and routing information, with 85% token compression applied and Prompt-Guard firewall screening.","failureModes":["Query too vague returns low-relevance or empty results","Prompt injection attempts blocked by Prompt-Guard firewall","Downstream MCP server unavailable causing routing failure","Malformed query string returns validation error","Payment not accepted causes HTTP 402 rejection"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hardcoding a specific tool. Ideal for swarm architectures, multi-agent orchestration, or situations where the right downstream tool is unknown at design time. Also useful for verifying whether a specific endpoint URL is indexed and safe to call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T00:35:16.083Z","isFirstParty":false,"canonicalSlug":"x402broker-com-universal-a2a-mcp-tool-discovery-safe-proxy-swarm-router-1b29e69c"}