{"uid":"cap_3TXHvGz89BCkawd59Aonh","slug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-cf9b0540","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://prompt-guard.agentdiet.dev/v1/swarm-router)","url":"https://prompt-guard.agentdiet.dev/v1/swarm-router?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_5uAJPChdwKFsJDlcTSMjJ","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"prompt-guard.agentdiet.dev","brandSlug":"prompt-guard-agentdiet-dev-mpp","brandBaseUrl":"https://prompt-guard.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches across 500+ indexed MCP servers and A2A tools by capability query, returning compressed, firewall-filtered tool discovery results through a single connection.","exampleAgentPrompt":"Search the swarm router for MCP tools that can handle SEC filings and company enrichment — I need to find what's available across the 500+ indexed servers.","exampleUseCases":[{"title":"Discovering tools for GitHub security audits","prompt":"Find me any MCP servers or A2A tools in the swarm router index that can do GitHub security audits or code vulnerability scanning."},{"title":"Finding on-chain risk analysis tools","prompt":"Search the swarm router for tools that handle on-chain risk or DEX token intelligence — I want to see what's indexed and available."},{"title":"Verifying a specific MCP endpoint","prompt":"Check the swarm router to verify whether this endpoint URL is compliant and indexed: https://some-mcp-server.example.com/v1/tools"}],"resultDescription":"Returns a compressed (up to 85% token reduction) list of matching MCP servers and A2A tools from the 500+ indexed registry, filtered through the Prompt-Guard firewall. Results include tool metadata, capability descriptions, and endpoint references relevant to the query.","failureModes":["Empty query string returns validation error (query is required, minLength 1)","No matching tools found for an obscure or misspelled capability query","Downstream MCP servers may be offline or stale in the index","Payment required (HTTP 402) if x402 token is missing or invalid","Rate limiting if called excessively within a time window"],"whenToPreferThis":"Use this endpoint when you need a single-connection gateway to discover and route to 500+ MCP servers and A2A tools without maintaining separate integrations. Prefer it over direct MCP server connections when you want built-in prompt injection firewall protection, token-compressed responses, or when you don't know which specific tool server hosts a capability and need to search across the entire indexed ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:48:45.807Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-bcdfb4b9"}