{"uid":"cap_9xagzErj1nWa1JU0lL4kR","slug":"shopify-spy-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-4cec58a1","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/x402-broker)","url":"https://shopify-spy.agentdiet.dev/v1/x402-broker?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_S8hJOchoioZmORQkXH-GK","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+ MCP servers and A2A tools via a single connection, with token compression and prompt-injection firewall.","exampleAgentPrompt":"Search across all connected MCP servers and A2A tools to find me the best capability for 'B2B lead enrichment' — route through the safe proxy and return the top matches with compressed tokens.","exampleUseCases":[{"title":"Finding a SEC filings tool","prompt":"I need to pull SEC filings for a company — can you search across your indexed MCP servers and A2A tools to find me the best capability for 'SEC filings' and route my request through?"},{"title":"Discovering GitHub audit capabilities","prompt":"Search your 500+ indexed tools for anything that handles GitHub security audits or code scanning, and tell me which MCP servers cover that capability."},{"title":"Routing to context compression tool","prompt":"I want to compress a large context window before sending it to my LLM — find me a tool for 'context compression' across the MCP index and proxy the request safely."}],"resultDescription":"A ranked list of matching MCP servers or A2A tools for the given capability query, with metadata about each tool, filtered through a Prompt-Guard firewall and compressed to reduce token usage.","failureModes":["Query too vague — returns no strong matches from the index","Upstream MCP server unavailable — proxy returns partial or empty results","Prompt-injection detected in upstream tool response — firewall blocks and returns sanitized error","Invalid or malformed query string — returns 400 with validation error","Payment not processed (x402) — returns 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you need to discover which MCP server or A2A tool handles a given capability across a large universe of options, rather than calling a known tool directly. It is especially valuable when you don't know which specific service to use, want to minimize token usage through compression, or need a safety layer (prompt-injection firewall) between your agent and untrusted upstream tool responses.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-01T18:32:16.156Z","isFirstParty":false,"canonicalSlug":"shopify-spy-agentdiet-dev-universal-a2a-mcp-tool-discovery-safe-proxy-b0d21200"}