Transportation · head-to-head
Transport for Belgium vs Transport for Denver, US
Independent, community-run, free API for Belgian rail travel, mirroring NMBS/SNCB data as live departure boards, connections, and vehicle compositions. Built and maintained as an open-source hobby project, it requires no API key and returns either JSON or XML depending on the requested format.
RTD Denver's original gtfs-developer-guide.shtml page is gone after a full site rebuild (now 404s); the transit agency's open-data offering now lives under open-records/open-spatial-information, split into static GTFS zip downloads (bus, light rail, commuter rail, plus the regional Bustang service) and three GTFS-Realtime protocol-buffer feeds (vehicle positions, trip updates, alerts). No API key is required, only acceptance of a redistribution license agreement.
| Transport for Belgium | Transport for Denver, US | |
|---|---|---|
| Authentication | None | None |
| Pricing | free | free |
| Formats | JSON, XML | GTFS, GTFS-RT |
| CORS | yes | no |
| HTTPS | Yes | Yes |
Transport for Belgium supports CORS, while Transport for Denver, US doesn't — pick Transport for Belgium for direct browser calls.