{"uid":"cap_oUx8qmwzpRfqrpOcmwUpb","slug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-a34ad833","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://serp-extract.agentdiet.dev/v1/web-rag-shield-dag)","url":"https://serp-extract.agentdiet.dev/v1/web-rag-shield-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_peYVBfX91f6OGtm9U4-UO","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"serp-extract.agentdiet.dev","brandSlug":"serp-extract-agentdiet-dev-mpp","brandBaseUrl":"https://serp-extract.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Meta-router that searches and proxies 500+ MCP servers and A2A tools by capability query, with token compression and prompt injection firewall.","exampleAgentPrompt":"Search the MCP tool index for servers that handle 'SEC filings' and route my query through the safe-proxy — I want compressed, firewall-filtered results.","exampleUseCases":[{"title":"Discover tools for lead enrichment","prompt":"Search your MCP index for any A2A tools that do B2B company enrichment or contact data extraction — I want to see what's available and which endpoint I should route to."},{"title":"Find a context compression MCP server","prompt":"I need to cut down token usage in my agent pipeline — can you search the 500+ MCP servers for anything that does context compression or token pruning?"},{"title":"Verify and proxy a specific MCP endpoint","prompt":"I have this MCP server URL — can you check whether it's in your index and route a test query through the prompt-guard firewall to make sure it's safe to use?"}],"resultDescription":"Returns a list of matching MCP servers or A2A tools relevant to the capability query, with compressed metadata (85% token reduction), safety-filtered through Prompt-Guard firewall, and routing details for direct use by an agent.","failureModes":["Query too vague — returns low-relevance or empty tool list","Queried endpoint URL not found in index — returns no match","Prompt injection detected by firewall — request blocked","Payment not processed (x402) — 402 response before results returned","Downstream MCP server unavailable — proxy returns upstream error"],"whenToPreferThis":"Choose this endpoint when you need a single connection point to discover and safely proxy across a large catalog of MCP servers or A2A tools, especially when token budget is constrained or when prompt injection safety is a concern. Prefer over direct MCP server calls when the right tool is unknown and needs to be searched first.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T12:44:21.041Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-8d70db86"}