{"uid":"cap_6FbIPoQMXV_Q8K7c_ccqQ","slug":"ddg-rail-compare-6029799d","name":"DDG Rail Compare","description":"Machine-payable DDG services for AI agents. Current public live payment rails are x402 multi-chain USDC and direct-crypto auto/manual for public receiving-address families. MPP/Stripe/Tempo is installed but pending live provider env plus penny-settlement proof before any MPP-live advertisement. DDG sells bounded artifacts/results, not raw provider account access.","url":"https://agents.daedalusdevelopmentgroup.com/v1/spend/rail-compare?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input","output"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object"},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":true},"output":{"type":"object","required":["type","example"],"properties":{"type":{"type":"string"},"example":{"ok":true}},"additionalProperties":true}}},"responseSchema":{"type":"json","example":{"ok":true}},"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_zJwIWQ2EPaVdQ6afde2IL","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":"Compares rail (train/transit) options between two points, returning a structured comparison of routes, prices, or schedules","exampleAgentPrompt":"Compare all available rail options from New York Penn Station to Washington DC Union Station for this Friday, including prices and travel times, so I can pick the best one.","exampleUseCases":[{"title":"Weekend trip rail comparison","prompt":"I'm heading from Chicago to Milwaukee this Saturday — can you compare all the train options available, with prices and departure times, so I can decide which one to book?"},{"title":"Business travel cost check","prompt":"Compare rail options between London Euston and Manchester Piccadilly for Monday morning — I need to know which trains are available, how long they take, and what each ticket costs."},{"title":"Cheapest route for family travel","prompt":"Can you pull up all the rail choices from Paris Gare du Nord to Brussels for next Wednesday and rank them by price? I want to see the schedules too so we can plan around nap time."}],"resultDescription":"Returns a structured comparison of available rail options for the requested route and date, including fares, departure/arrival times, journey durations, and potentially a recommended option based on price or speed.","failureModes":["No rail routes found for the given origin/destination pair — returns empty result or error","Invalid station names or unsupported routes — may return 400-level error","Travel date in the past or too far in advance — may return no results","Payment failure or insufficient USDC balance — 402 Payment Required before response","Malformed request body — returns validation error"],"whenToPreferThis":"Use this endpoint when an agent needs to programmatically compare rail/train travel options between two points, especially when price or schedule comparison is the goal. Prefer this over general travel search APIs when the user specifically wants rail/train options and cost comparison. Particularly useful when building travel planning agents that need structured rail data for decision-making.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:44:49.650Z","isFirstParty":false,"canonicalSlug":"ddg-rail-compare-6029799d"}