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HeartRails Express Japan Railway Station Lookup
x402
HeartRails Express Japan Railway Station Lookup is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Search Japanese railway stations by name, returning prefecture, rail line, and postal code information
Price / call$0.02
Success—
StatusUnknown
How this service works
Japan (HeartRails Express API): railway stations matching a name, with prefecture, line and postal code. Query: ?q= Returns JSON.
Output
A JSON array of railway stations matching the query, each containing the station name, prefecture, rail line name, and postal code.
Example use cases
Example prompt
“Can you find the Japanese railway station called 'Shinjuku' and tell me which prefecture it's in, what rail lines serve it, and its postal code?”
Technical details
Endpoint
POSThttps://clonecho.builda.company/x402/s/heartrails-jp-stationsWhen to prefer
Use this endpoint when you need to look up Japanese railway station metadata — specifically prefecture, rail line, and postal code — by station name. Ideal for transit routing apps, address enrichment with postal codes, or geographic lookups of stations within Japan. Not suitable for real-time train schedules, fare information, or non-Japanese rail systems.
Side effects
- No stations found for the given query string — returns empty results array
- Query parameter missing — may return error or all stations
- Station name ambiguous — returns multiple matches across different lines and prefectures
- API unavailable or payment failure — HTTP 402 or 5xx error
Tags
x402
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