{"uid":"cap_BRhBs-yijuLq_cpFdsOmf","slug":"shopify-spy-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-1c3f4602","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://shopify-spy.agentdiet.dev/v1/workflows/rag-context-sanitizer)","url":"https://shopify-spy.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":"0.01","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_oFdM2fhbuyz5J5e6CkIOe","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"shopify-spy.agentdiet.dev","brandSlug":"shopify-spy-agentdiet-dev-mpp","brandBaseUrl":"https://shopify-spy.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Searches an index of 500+ MCP servers and A2A tools by capability query, returning compressed, firewall-filtered tool discovery results via a single connection.","exampleAgentPrompt":"Search the MCP tool index for servers that handle 'SEC filings' — I want to find the right tool to route my agent's financial data requests through.","exampleUseCases":[{"title":"Discovering tools for GitHub security audits","prompt":"I need to find an MCP server that can do GitHub security audits — search the tool index for 'github security' and tell me what's available."},{"title":"Finding a context compression tool for agent pipelines","prompt":"Can you search for MCP tools that do context compression? I'm trying to reduce token usage in my agent workflow and want to see what's indexed."},{"title":"Routing to an email verification agent tool","prompt":"I need to find the right A2A tool for email verification — search the tool registry for 'email verification' and show me which servers support it."}],"resultDescription":"Returns a list of matching MCP servers or A2A tools relevant to the capability query, with compressed metadata (85% token reduction) and prompt-guard firewall filtering applied. Results include tool names, descriptions, and routing information needed for single-connection access.","failureModes":["Empty query string returns validation error (minLength:1 required)","No matching tools found for obscure or misspelled capability query","Upstream MCP index unavailable, returning 503 or empty result set","Payment not fulfilled (HTTP 402) when x402 micropayment not provided","Prompt-guard firewall blocks query flagged as adversarial input"],"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 hardcoding a specific tool. Especially useful when building multi-agent swarms or orchestrators that need to route tasks to the right specialist tool at runtime, or when token budget is tight and compressed discovery results are valuable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:51.732Z","isFirstParty":false,"canonicalSlug":"shopify-spy-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b0d21200"}