{"uid":"cap_7eEzIjTE-aRtktYeGZDAB","slug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-e1aeab54","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/execute)","url":"https://prompt-guard.agentdiet.dev/v1/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_OouzbZqlIT0iSPw8tWceF","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 and proxies 500+ MCP servers and A2A tools via a single connection, with token compression and prompt injection firewall","exampleAgentPrompt":"Search the MCP tool index for anything related to 'SEC filings' so I can find which servers and A2A endpoints support that capability — run the query through the prompt-guard firewall and give me the compressed results.","exampleUseCases":[{"title":"Finding GitHub security audit tools","prompt":"Search the MCP tool registry for 'github security' and tell me which A2A or MCP servers can run code audits — I want the safest option with token-efficient responses."},{"title":"Discovering company enrichment capabilities","prompt":"Look up 'company enrichment' in the MCP index and find me which tools or servers support B2B lead enrichment so I can plug one into my agent workflow."},{"title":"Locating on-chain risk analysis tools","prompt":"Search for 'on-chain risk' or 'DEX token' tools across MCP servers and A2A endpoints — I need something that can flag risky tokens and I want the results compressed to save context."}],"resultDescription":"A structured response listing matching MCP servers and A2A tool endpoints for the query, with compressed tool manifests (up to 85% token reduction) and any prompt-injection risk flags from the firewall. When given a URL, returns compliance and verification metadata for that endpoint.","failureModes":["No matching tools found for an obscure query — returns empty result set","Query string too short or vague — may return low-relevance results","Endpoint URL verification may time out if the remote server is unresponsive","Prompt-Guard firewall may block or flag queries containing injection-like patterns","Payment not completed (HTTP 402) — call not executed","Rate limiting or quota exhaustion at $0.01/call"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to discover which MCP servers or A2A tools support a given capability across a large registry without connecting to each individually. Ideal when token budget is tight (85% compression), when prompt injection safety is a concern, or when orchestrating multi-tool swarms from a single connection point. Prefer over direct MCP server connections when the specific tool server is unknown.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:13.218Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-bcdfb4b9"}