sbb-timetable - SKILL.md Agent Skill

name: sbb-timetable description: Swiss public transport timetable lookups via transport.opendata.ch user-invocable: false

Swiss Public Transport Timetable

Free API at transport.opendata.ch — no API key needed. Use web_fetch to call these endpoints.

Connections — "How do I get from A to B?"

https://transport.opendata.ch/v1/connections?from=FROM&to=TO&fields[]=connections/duration&fields[]=connections/from/station/name&fields[]=connections/from/departure&fields[]=connections/from/platform&fields[]=connections/from/prognosis/departure&fields[]=connections/to/station/name&fields[]=connections/to/arrival&fields[]=connections/to/prognosis/arrival&fields[]=connections/sections/journey/category&fields[]=connections/sections/journey/number&fields[]=connections/sections/journey/to&fields[]=connections/sections/departure/station/name&fields[]=connections/sections/departure/departure&fields[]=connections/sections/departure/platform&fields[]=connections/sections/arrival/station/name&fields[]=connections/sections/arrival/arrival

Required params: from, to (station names — the API fuzzy-matches them).

Optional params:

limit — number of connections (default 3, max ~6)
date — YYYY-MM-DD
time — HH:MM
isArrivalTime=1 — treat time as desired arrival instead of departure

Sections with journey: null mean a walking transfer between platforms/stations.

Stationboard — "What's leaving from station X?"

https://transport.opendata.ch/v1/stationboard?station=STATION&limit=5&fields[]=stationboard/stop/departure&fields[]=stationboard/stop/delay&fields[]=stationboard/stop/platform&fields[]=stationboard/category&fields[]=stationboard/number&fields[]=stationboard/to

Required: station (name) or id (SBB station ID).

Optional:

limit — default 5
type — departure (default) or arrival

Locations — station name disambiguation

Use when a name might be ambiguous (e.g. "Basel" → Basel SBB, Basel Badischer Bahnhof, etc.):

https://transport.opendata.ch/v1/locations?query=QUERY&fields[]=stations/name&fields[]=stations/id

Formatting rules

Show times as HH:MM, never raw ISO timestamps.
If prognosis differs from scheduled time, mention the delay (e.g. "11:31 (+3 min)").
Keep responses brief — short sentences, not tables. WhatsApp messages should be concise.
For multi-leg journeys, summarize the chain: "IC 1 Bern dep 11:31 → Zurich arr 12:28, then S3 → Uster arr 12:52".
Always mention the train category and number (e.g. IC 1, S3, IR 36).