{"uid":"cap__g7bibmVHY3hbEW9GiRZw","slug":"mcp-security-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-7da67bd7","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://mcp-security.agentdiet.dev/v1/universal-mcp-gateway)","url":"https://mcp-security.agentdiet.dev/v1/universal-mcp-gateway?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_mrVdChzP54FOzz1xjxVz5","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mcp-security.agentdiet.dev","brandSlug":"mcp-security-agentdiet-dev-mpp","brandBaseUrl":"https://mcp-security.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Routes capability search queries across 500+ indexed MCP servers and A2A tools, returning compressed, firewall-screened results via a single gateway connection.","exampleAgentPrompt":"Search the universal MCP gateway for tools that handle SEC filings — I need to find the best MCP server or A2A tool available for that capability.","exampleUseCases":[{"title":"Discovering context compression tools","prompt":"Search the MCP gateway for any servers that support context compression — I want to reduce token usage in my agent pipeline."},{"title":"Finding prompt firewall MCP endpoints","prompt":"Can you query the universal MCP tool index for prompt injection firewall or Prompt-Guard capabilities? I need to protect my agent from adversarial inputs."},{"title":"Routing to B2B lead enrichment tool","prompt":"Search the MCP swarm router for tools that do B2B lead enrichment or company data enrichment — find me the best available A2A endpoint for that."}],"resultDescription":"Returns a compressed (up to 85% token reduction) list of matching MCP servers or A2A tools relevant to the query, including endpoint metadata, filtered through the Prompt-Guard firewall to remove malicious or unsafe results.","failureModes":["No matching tools found for the query — returns empty or low-confidence results","Query too vague to route accurately — broad terms like 'data' may return irrelevant tools","Firewall blocks a result due to suspected prompt injection in tool metadata","Payment required (HTTP 402) if x402 micropayment is not provided","Upstream MCP server is offline or unresponsive — partial results returned"],"whenToPreferThis":"Choose this endpoint when an agent needs to dynamically discover which MCP server or A2A tool to call for a given capability, rather than hardcoding tool references. Especially useful in multi-agent swarm architectures where tool availability changes, or when you want a single connection point with built-in safety filtering and token compression instead of querying each MCP registry separately.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T06:45:06.357Z","isFirstParty":false,"canonicalSlug":"mcp-security-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-88de6323"}