{"uid":"cap_c-8EQj4RPOILjGSsmY4_U","slug":"shopify-spy-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-187ca6e1","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/a2a-router)","url":"https://shopify-spy.agentdiet.dev/v1/a2a-router?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_xiRQ7H_jgB4B9a52yWe35","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 a meta-index of 500+ MCP servers and A2A tools by capability query, returning matching endpoints with token-compressed results and prompt-injection firewall protection.","exampleAgentPrompt":"Search the MCP and A2A tool index for servers that can handle SEC filings and company enrichment — I need to find the best available endpoints for those capabilities.","exampleUseCases":[{"title":"Discover tools for financial data","prompt":"Search the agent tool index for any MCP servers or A2A endpoints that can pull SEC filings or company financial data — I need to find what's available before building my research workflow."},{"title":"Route swarm to GitHub audit tools","prompt":"Find me all available MCP tools in the index that can do GitHub security audits or code vulnerability scanning so I can wire them into my autonomous swarm."},{"title":"Verify an endpoint before connecting","prompt":"Can you check the tool discovery router to verify whether this endpoint URL is a known, indexed A2A tool: https://example-mcp.dev/v1/enrich — I want to confirm it's legitimate before routing traffic to it."}],"resultDescription":"Returns a list of matched MCP servers or A2A tools relevant to the capability query, including endpoint metadata, descriptions, and token-compressed representations. Results are screened through a prompt-injection firewall before being returned.","failureModes":["Empty or overly vague query returns no matches","Query string too short (minLength: 1 violated) returns validation error","Unknown or unindexed endpoint URL returns no match","Service unavailability returns 402 or 5xx error","Prompt-guard firewall may filter or reject malicious-looking queries"],"whenToPreferThis":"Choose this endpoint when an AI agent needs to dynamically discover which MCP servers or A2A tools are available for a given capability, especially in swarm or multi-agent architectures where you don't want to hardcode tool endpoints. Prefer it over manual tool registries when you need breadth (500+ indexed servers), built-in safety (prompt-injection firewall), and token efficiency (85% compression).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-28T00:34:30.847Z","isFirstParty":false,"canonicalSlug":"shopify-spy-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b0d21200"}