{"uid":"cap_ACITABt52e9mRPbPQB93w","slug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-ddc2da6a","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/rag-context-sanitizer)","url":"https://prompt-guard.agentdiet.dev/v1/workflows/rag-context-sanitizer?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":"0.005","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_YSM21CyIgC2HWzPXlfvi9","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+ MCP servers and A2A tools via a single connection, with token compression and prompt injection firewall protection","exampleAgentPrompt":"Search the MCP and A2A tool index for anything that can handle SEC filings or company enrichment, and make sure results are safe and token-compressed before sending them back to me.","exampleUseCases":[{"title":"Finding a GitHub audit tool","prompt":"I need to find an MCP server or A2A tool that can audit GitHub repositories for security issues — search the swarm index for anything matching 'github security' and give me the best options."},{"title":"Discovering context compression tools","prompt":"Search the tool directory for anything that handles context compression or RAG sanitization — I want to reduce my token usage in my agent pipeline."},{"title":"Locating on-chain risk analysis capability","prompt":"Can you look up what MCP or A2A tools are available for on-chain risk analysis or DEX token intelligence in the agent swarm index?"}],"resultDescription":"A filtered, token-compressed list of matching MCP servers or A2A tools relevant to the search query, including capability metadata and endpoint references, passed through a Prompt-Guard firewall to remove injected or malicious content.","failureModes":["Empty results if the query is too niche or no matching tool is indexed","Prompt injection blocked by firewall — query flagged as unsafe and rejected","Service unavailable if the meta-router backend is down","Payment required (HTTP 402) if x402 payment header is missing or invalid","Malformed query returns validation error"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to use for a given capability, rather than hard-coding tool routes. Especially useful for multi-agent swarms that need a single safe entry point to a broad tool ecosystem with token efficiency and prompt injection protection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:35:45.202Z","isFirstParty":false,"canonicalSlug":"prompt-guard-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-bcdfb4b9"}