How to Use the CTA MCP in Claude

Q: Can Claude Desktop show me where my train is right now?

Yes, it can. By calling gettrainpositions, your agent pulls the current location of all active trains on the line you specify.

Q: Does this MCP Server help me plan around CTA delays in Claude Desktop?

Absolutely. You can request a system-wide check using getservicealerts to see if your route is affected by any ongoing disruptions.

Q: How do I verify the server is working in Claude Desktop?

Run getsystemtime to confirm the connection is active. It returns the current CTA server timestamp if everything is configured correctly.

Get live Chicago transit data directly in Claude Desktop. Track bus and train arrivals without leaving your chat.

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Connect CTA MCP to Claude Desktop

Create your Vinkius account to connect CTA to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup CTA with Claude Desktop

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Real-time CTA bus and train tracking

Stop guessing when your ride will show up. You can ask your agent to pull `get_bus_predictions` or `get_train_arrivals` to see exactly how many minutes remain until the next vehicle reaches your stop. This MCP Server connects your chat directly to official transit feeds. You get current vehicle positions through `get_bus_vehicles` and `get_train_positions` so you know if your commute is on track.

Instant service status and disruption alerts

Check the health of the entire transit system before you head out the door. Use `get_route_status` to see which lines are running normally and which are facing delays. If there is an incident, `get_service_alerts` gives you the full breakdown of why and where the trouble is. You get the facts on maintenance or weather impacts immediately.

Precise stop and route lookups

Find the right stop ID quickly using `get_bus_stops` or `get_stop_details`. You don't need to hunt through PDFs to find coordinates or stop sequences for your route. Use `get_bus_routes` and `get_route_directions` to map out your trip. Your agent handles the heavy lifting of identifying the correct line and direction for your specific destination.

Setup guide

Set up CTA MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The CTA MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the CTA MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under cta-mcp.

json

{
  "mcpServers": {
    "cta-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by CTA. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about CTA MCP in Claude Desktop

Just ask your agent for the arrival time at your specific stop ID. It uses the `get_bus_predictions` tool to fetch live data from the transit network.

Yes, it can. By calling `get_train_positions`, your agent pulls the current location of all active trains on the line you specify.

Absolutely. You can request a system-wide check using `get_service_alerts` to see if your route is affected by any ongoing disruptions.

This server only processes the stop IDs and route information you provide. It does not track your personal location or store identifiable user history.

Run `get_system_time` to confirm the connection is active. It returns the current CTA server timestamp if everything is configured correctly.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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