{"uid":"cap_n-RHCuKa1AJrukKLADhAf","slug":"x402-broker-dex-endpoint-mcp-x402-a2a-gateway-263d2e69","name":"X402-BROKER DEX Endpoint — MCP/x402/A2A Gateway","description":"Deterministic B2A/A2A/MCP/x402/MPP/L402 execution and intelligence node at https://mcp-gateway.agentdiet.dev settling in USDC on Base.","url":"https://mcp-gateway.agentdiet.dev/v1/dex?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","POST"],"type":"string"},"queryParams":{"type":"object","properties":{"token":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{},"status":"ok","roi_proof":{"compression_ratio_pct":91.4}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","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":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ULZTSqPiZIA6T6IG7bdom","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns DEX (decentralized exchange or service directory) data from the X402-BROKER gateway, which routes across 31,390+ MCP servers, x402 APIs, and A2A agents, settling in USDC on Base.","exampleAgentPrompt":"Query the X402-BROKER DEX endpoint to get the current directory of available MCP servers and x402 APIs using a GET request, then show me what services are listed and the ROI compression stats.","exampleUseCases":[{"title":"Discover available MCP tools via broker","prompt":"Can you check the X402-BROKER DEX to see what MCP servers and tools are currently available for routing, and give me a summary of what's listed?"},{"title":"Agent routing intelligence lookup","prompt":"I need to find which x402 APIs and A2A agents are accessible through the agentdiet broker gateway — can you pull the DEX data and tell me what's there?"},{"title":"Verify gateway status and compression metrics","prompt":"Pull the DEX endpoint from the X402-BROKER and tell me the current status and ROI proof compression ratio it returns."}],"resultDescription":"Returns a JSON object with a `data` field containing DEX listing information, a `status` field (e.g. 'ok'), and an `roi_proof` object including a `compression_ratio_pct` value (e.g. 91.4%), indicating the efficiency of the broker's intelligence compression.","failureModes":["Missing or malformed `input.type` or `input.method` fields return validation errors","Invalid token query parameter may return empty or unauthorized data","Payment failure in x402 flow (0.01 USDC not settled) blocks access","Service unavailability on the Base network may cause gateway errors","Empty `data` object returned if no DEX entries match the query"],"whenToPreferThis":"Choose this endpoint when you need to discover or route across MCP servers, x402-compatible APIs, or A2A agents through a unified broker gateway that settles micropayments in USDC on Base. It is best suited for agents that need directory-style lookups of available tools and services in the x402/MCP ecosystem, especially when cost-per-call efficiency matters (ROI compression). Prefer this over direct MCP server calls when you want centralized routing intelligence.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:43:14.924Z","isFirstParty":false,"canonicalSlug":"x402-broker-dex-endpoint-mcp-x402-a2a-gateway-263d2e69"}