{"uid":"cap_E4LR7pYo4L6yl_JaUpIYS","slug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-197a1600","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/workflows/code-release-security-gate)","url":"https://prompt-guard.agentdiet.dev/v1/workflows/code-release-security-gate?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_e1jrt-rTHTGQRgL7wEhLb","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 compressed, firewall-filtered results via a single meta-router connection","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that can handle 'github security audits' — I want to find available endpoints I can route to for that capability.","exampleUseCases":[{"title":"Discover tools for SEC filing retrieval","prompt":"Search the tool index for any MCP servers or A2A agents that handle SEC filings or EDGAR data — I need to route my agent to something that can pull financial disclosures."},{"title":"Find context compression MCP servers","prompt":"Look through the MCP index for tools that support context compression — I want to cut down my token usage when chaining multiple agent calls."},{"title":"Verify an endpoint before routing","prompt":"Check if this URL is a valid, compliant A2A or MCP endpoint before I start sending it traffic: https://some-agent.example.com/v1/tools"}],"resultDescription":"Returns a structured object containing matched MCP server or A2A tool listings relevant to the query, with token-compressed metadata and Prompt-Guard firewall filtering applied. May include endpoint URLs, capability descriptions, compliance signals, and routing metadata.","failureModes":["Empty or too-broad query returns low-relevance results","Unknown or malformed endpoint URL returns validation error","No matching tools found for a highly specific capability query","Rate limiting or payment failure if x402 micropayment is not fulfilled","Firewall (Prompt-Guard) may block queries flagged as potentially malicious"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools support a given capability, especially when building multi-agent pipelines that require routing to the right external tool without hardcoding endpoints. Prefer this over manual tool registries when you want prompt-injection firewall protection and compressed index responses.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:57.642Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-bcdfb4b9"}