{"uid":"cap_2WyrVwTd_sRxKYCfZAMme","slug":"x402broker-com-universal-a2a-mcp-tool-discovery-safe-proxy-swarm-router-a3664870","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/web-rag-shield-dag)","url":"https://x402broker.com/v1/web-rag-shield-dag?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_7z7NUWEncLQ48EA44U1UU","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 an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered tool discovery results via a single meta-router connection.","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that handles 'SEC filings' so I can find the right server to plug into my agent pipeline.","exampleUseCases":[{"title":"Agent capability discovery for SEC data","prompt":"Search your tool index for MCP servers that can retrieve SEC filings — I need to find what's available so my agent can pull 10-K reports automatically."},{"title":"Verify a specific endpoint before use","prompt":"Can you check whether the endpoint at https://x402broker.com/v1/github-audit is indexed and verified in the MCP tool directory?"},{"title":"Find compression-capable tools for agent pipelines","prompt":"Look up what MCP servers are available for context compression — I want to cut token usage in my swarm router by at least 80%."}],"resultDescription":"Returns a compressed, structured list of matching MCP servers or A2A tools relevant to the capability query, including tool metadata filtered through a Prompt-Guard firewall, with approximately 85% token compression applied to keep responses agent-friendly.","failureModes":["Missing or empty query parameter returns a validation error","Query too generic returns a large or noisy result set","Specific endpoint URL not found in the index returns no match","Service unavailable or x402 payment failure returns HTTP 402 or 503","Firewall may block results flagged as prompt-injection risks"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to use for a given capability, rather than hard-coding a specific tool. Ideal for orchestrators, swarm routers, and meta-agents that need to select tools at runtime from a large index with minimal token overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:44.791Z","isFirstParty":false,"canonicalSlug":"x402broker-com-universal-a2a-mcp-tool-discovery-safe-proxy-swarm-router-1b29e69c"}