`cta_bus_predictions`

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

Chicago CTA bus tracker arrival predictions at a bus stop — route, destination, predicted minutes until arrival (“DUE” = arriving now), delay flag, and vehicle id. Pass stop_id (the 4-5 digit stop number posted on CTA bus-stop signs), optionally with route. If you only know the stop by name, pass route + find_stop (a street/intersection fragment like “clark & madison”) and the stop is looked up for you. Example: cta_bus_predictions({ route: “22”, find_stop: “addison” })

Parameters

Name	Type	Required	Description
`stop_id`	string	no	CTA bus stop id (stpid), the number on the bus-stop sign, e.g. “1926”. Comma-separable up to 10.
`route`	string	no	Optional bus route number to filter, e.g. “22”, “66”, “X49”. Required when using find_stop.
`find_stop`	string	no	Stop-name fragment to look up when stop_id is unknown, e.g. “clark & madison”, “michigan & randolph”. Requires route.
`direction`	string	no	Optional direction to narrow find_stop, e.g. “Northbound”, “south”
`max`	number	no	Max predictions to return, 1-20 (default 10)
`_apiKey`	string	no

Example call

Arguments

{
  "stop_id": "1926",
  "route": "22",
  "_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_bus_predictions","arguments":{"stop_id":"1926","route":"22","_apiKey":"your-cta-api-key"}}}'

TypeScript (@pipeworx/sdk)

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

const result = await pipeworx.call('cta_bus_predictions', {
  "stop_id": "1926",
  "route": "22",
  "_apiKey": "your-cta-api-key"
});

More examples

{
  "route": "66",
  "find_stop": "clark & madison",
  "direction": "Northbound",
  "_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_bus_predictions