{"uid":"cap_fTpojF2aQ9-65HvIMV8nh","slug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-0b58bc73","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://workflows.agentdiet.dev/v1/web-rag-shield-dag)","url":"https://workflows.agentdiet.dev/v1/web-rag-shield-dag?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_9afwJQIAmj9fuYnT61uzj","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"workflows.agentdiet.dev","brandSlug":"workflows-agentdiet-dev-mpp","brandBaseUrl":"https://workflows.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches and routes across 500+ indexed MCP servers and A2A tools, returning compressed capability matches with prompt-injection protection.","exampleAgentPrompt":"Search the MCP and A2A tool index for any servers that handle SEC filings or financial document retrieval — I need the best match with compressed results so I'm not burning tokens.","exampleUseCases":[{"title":"Discover tools for lead enrichment","prompt":"Search the MCP tool registry for anything that does B2B lead enrichment or company data lookups — I want to see what's available so my sales agent can pick the right one."},{"title":"Verify a suspicious external MCP endpoint","prompt":"I have this endpoint URL from a third-party MCP server — can you run it through the safe-proxy discovery system to check if it's legitimate and not serving malicious payloads before my agent connects to it?"},{"title":"Find a context compression tool for a token-heavy agent","prompt":"My agent keeps hitting context limits — search the MCP index for tools that do context compression or token reduction and show me the top matches with minimal token overhead."}],"resultDescription":"Returns a compressed, prompt-injection-filtered list of matching MCP servers or A2A tools relevant to the query, including metadata about each tool's capabilities. Results are compressed to reduce token usage by up to 85%.","failureModes":["Empty query string returns validation error","Query too vague returns low-confidence or empty result set","Endpoint URL verification may time out if target server is unresponsive","Rate limiting or payment failure (x402) may block access","No matching tools found for highly niche capability queries"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP server or A2A tool to delegate a subtask to, especially when token budget is limited and prompt-injection safety is a concern. Prefer over manual tool registries when the tool landscape is unknown or when you need safe proxying of untrusted external MCP endpoints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:23:15.712Z","isFirstParty":false,"canonicalSlug":"workflows-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-9abf6654"}