{"uid":"cap_X4LTehLTa06kL6C2dRKUo","slug":"shopify-spy-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-aedf73c8","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/agent-tool-marketplace)","url":"https://shopify-spy.agentdiet.dev/v1/agent-tool-marketplace?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_Dk8jPdKop-kr_rCsW7xnI","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 and routes across 500+ indexed MCP servers and A2A tools, returning token-compressed results filtered through a Prompt-Guard firewall","exampleAgentPrompt":"Search the agent tool marketplace for MCP servers or A2A tools that handle SEC filings and company enrichment — I want to find the best available options with compressed results.","exampleUseCases":[{"title":"Discovering email verification tools","prompt":"Can you search the MCP tool marketplace for any available agents or servers that do email verification? I want to find something I can plug into my workflow."},{"title":"Finding on-chain risk analysis agents","prompt":"Search across all indexed A2A tools and MCP servers for anything that handles on-chain risk or DEX token intelligence — list what's available."},{"title":"Locating context compression capabilities","prompt":"I need to find an MCP server that supports context compression or token reduction — can you query the agent tool marketplace and show me what comes back?"}],"resultDescription":"A token-compressed list of matching MCP servers and A2A tools relevant to the query, filtered through a Prompt-Guard firewall to remove unsafe or malicious content, including tool metadata and routing information","failureModes":["No matching tools found for the query — returns empty result set","Query string too short or vague — may return irrelevant or overly broad results","Downstream MCP server unavailable — proxy routing failure","Payment not settled (x402) — request blocked before execution","Prompt-Guard firewall blocks query if it resembles adversarial injection"],"whenToPreferThis":"Choose this endpoint when you need to discover which MCP servers or A2A tools are available for a given capability, rather than calling a known tool directly. It is especially useful for dynamic agent workflows that need to find and route to the right sub-tool at runtime, or when building swarm architectures that require tool federation across 500+ indexed servers.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:37:40.513Z","isFirstParty":false,"canonicalSlug":"shopify-spy-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b0d21200"}