{"uid":"cap_YeYUuNFGAxQozledPcOB2","slug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-1c1929db","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/b2b-osint-dag)","url":"https://prompt-guard.agentdiet.dev/v1/b2b-osint-dag?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_1SYRHCRvQifrToCa7SVA-","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 routes across 500+ indexed MCP servers and A2A tools with token compression and prompt-injection firewall protection","exampleAgentPrompt":"Search the A2A and MCP tool index for any available endpoints that handle 'company enrichment' or 'B2B lead data' so I can find the right tool to call next.","exampleUseCases":[{"title":"Discover tools for SEC filing analysis","prompt":"Search the MCP tool index for any servers or agents that can pull SEC 10-K or 10-Q filings — I need to find which capability to route my financial research queries to."},{"title":"Find safe proxy for GitHub security audits","prompt":"Look up what MCP or A2A tools are available for GitHub security scanning — I want to find a validated, firewall-protected endpoint I can route my code audit requests through."},{"title":"Route agent to context compression capability","prompt":"Search for any indexed MCP servers that support context compression or token reduction so my agent can offload large payloads without hitting token limits."}],"resultDescription":"Returns a compressed, structured list of matching MCP servers or A2A tools relevant to the query, including endpoint metadata, capability descriptions, and routing information — all filtered through a Prompt-Guard firewall to block injection attacks.","failureModes":["Empty query string returns validation error","No matching tools found for obscure capability queries","Upstream MCP server unavailable causing partial result set","Prompt injection attempt blocked by Prompt-Guard firewall returning a security rejection","Rate limit exceeded on high-frequency discovery requests","Malformed endpoint URL input returns parsing error"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which tool or MCP server to call for a given capability at runtime, rather than having tool routes hardcoded. Especially useful in swarm architectures where agents must self-select the right downstream capability, or when you want a single connection point with built-in prompt-injection protection and token compression across 500+ indexed tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:32:28.805Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-bcdfb4b9"}