`cta_train_positions`

Pack: cta · Endpoint: https://gateway.pipeworx.io/cta/mcp

Live Chicago CTA ‘L’ train positions on one or more lines — where every Red Line, Blue Line, Brown, Green, Orange, Purple, Pink, or Yellow train is right now: lat/lon, heading, next station with ETA, destination, approaching and delayed flags. Answers “where are the Blue Line trains” for the Chicago L. Example: cta_train_positions({ routes: “Red,Blue” })

Parameters

Name	Type	Required	Description
`routes`	string	yes	Comma-separated ‘L’ lines, full color names accepted: “Red”, “Red,Blue”, “Brown,Purple”
`_apiKey`	string	no

Example call

Arguments

{
  "routes": "Red,Blue",
  "_apiKey": "your-cta-api-key"
}

curl

curl -X POST https://gateway.pipeworx.io/cta/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"cta_train_positions","arguments":{"routes":"Red,Blue","_apiKey":"your-cta-api-key"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('cta_train_positions', {
  "routes": "Red,Blue",
  "_apiKey": "your-cta-api-key"
});

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "cta": {
      "url": "https://gateway.pipeworx.io/cta/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

cta_train_positions