CTA Connector for AI agents.

Yes, you can get real-time arrival predictions for any specific bus stop. Your agent will tell you exactly how many minutes away the next bus is, including the route number and destination.

Yes, it provides a quick overview of the health of all train lines. You can ask your agent to check if specific lines are running on time or experiencing delays.

You can list all stops for any specific bus route. This helps you find the best boarding points and see the geographic coordinates for each stop.

It covers the entire CTA L system, including the Red, Blue, Brown, Green, Orange, Purple, Pink, and Yellow lines.

Yes, the Connector pulls live alerts for the whole city. It can tell you about construction, weather delays, and incidents across both buses and trains.

Yes, your agent can pull live GPS positions, headings, and speeds for all active buses or filter it down to a specific route.

Yes! Use the get_train_arrivals capability with the station mapId (a 5-digit parent station ID, e.g., 40360 for Clark/Lake, 40900 for Jackson). Your AI will return all upcoming trains with destination names, line colors (Red, Blue, Brown, Green, Orange, Purple, Pink, Yellow), predicted arrival times in minutes, operating status (on-time, delayed, approaching, boarding, departing), and whether the train is scheduled or real-time tracked. If you do not know the mapId, it can be found in the CTA GTFS static data feed.

First use get_bus_stops with a route ID to find the stop ID (stpid) for your location. Then use get_bus_predictions with that stop ID to get real-time estimated arrival times, route information, destination descriptions, and vehicle IDs. For route-filtered predictions, you can also pass the route ID to narrow results to a specific bus line. Stop IDs are numeric identifiers assigned by CTA to each physical bus stop across Chicago.

Use get_service_alerts to check all active service disruptions across the CTA system. This returns alerts with affected routes and stations, disruption descriptions, severity levels, cause types (maintenance, incident, weather, special events, construction), and detour information. You can also use get_route_status for a quick system-wide health check showing which L lines and bus routes are running on-time, delayed, or have planned work. Always check this before planning any CTA journey.