{"uid":"cap_OPdV5mygs9CtytgQlXYsv","slug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-5b90322d","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-execute)","url":"https://prompt-guard.agentdiet.dev/v1/swarm-execute?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_njfGT3M0Ca8Dowkdvw_wp","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 an index of 500+ MCP servers and A2A tools by capability query, returning token-compressed results routed through a prompt-injection firewall","exampleAgentPrompt":"Search the swarm router for any MCP servers or A2A tools that handle SEC filings or company enrichment — I need to find a safe proxied tool I can call right now.","exampleUseCases":[{"title":"Discovering GitHub security audit tools","prompt":"Can you search the MCP tool index for any servers that do GitHub security audits or code vulnerability scanning? I want the compressed list so I can pick the right one quickly."},{"title":"Finding on-chain risk analysis agents","prompt":"I need to find an A2A or MCP tool that analyzes on-chain risk for crypto wallets — search the swarm router index for anything matching 'on-chain risk' or 'blockchain analysis'."},{"title":"Locating email verification capability","prompt":"Search across all the indexed MCP servers for one that can verify email addresses — I want to make sure I'm routing through a firewall-safe proxy so no prompt injection gets through."}],"resultDescription":"A token-compressed (up to 85% reduction) list of matching MCP servers and A2A tools from the 500+ indexed registry, each passing through the Prompt-Guard firewall, with metadata sufficient to route subsequent calls","failureModes":["Empty query string returns validation error","No matching tools found for obscure capability queries","Firewall blocks results flagged as prompt-injection risks","Payment required (HTTP 402) if x402 micropayment header is missing","Timeout if upstream MCP servers are unresponsive during index refresh"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which of 500+ MCP servers or A2A tools supports a given capability at runtime, especially when token budget is constrained (85% compression) or when prompt-injection safety is a concern. Prefer over direct MCP enumeration when the target tool is unknown and needs to be searched by natural language capability description.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:01.932Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-bcdfb4b9"}