MCP server

Cta

io.github.pipeworx-io/cta

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

CTA MCP — Chicago Transit Authority real-time trains ('L') + buses

Working at last checkOfficial: pipeworx.io's GitHub account (pipeworx-io)About 27,578 tokens per request once connected46 tools

https://gateway.pipeworx.io/cta/mcp

At a glance

Type: MCP server
Publisher: pipeworx.io (verified by the MCP Registry)
Status: Working at last check
Tools: 46
Token cost: About 27,578 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http cta https://gateway.pipeworx.io/cta/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.cta]
url = "https://gateway.pipeworx.io/cta/mcp"

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"cta":{"type":"http","url":"https://gateway.pipeworx.io/cta/mcp"}}}

Antigravity

agy mcp add cta https://gateway.pipeworx.io/cta/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"cta","server_url":"https://gateway.pipeworx.io/cta/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"cta","server_url":"https://gateway.pipeworx.io/cta/mcp"}

cta_bus_positions ~212 tokens
Live Chicago CTA bus positions on a route — every vehicle currently running: lat/lon, heading, destination, delayed flag, and distance along the pattern. Answers "where is the 22 Clark bus right now" via the CTA bus tracker. Example: cta_bus_positions({ route: "22" })
cta_bus_predictions ~445 tokens
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 ro
cta_train_arrivals ~372 tokens
Real-time Chicago CTA 'L' train arrivals at a station — answers "when is the next train Chicago", next Red Line at Belmont, Blue Line to O'Hare from Clark/Lake. Returns each upcoming train's line color, destination, arrival time and minutes_away, plus approaching / delayed / scheduled-only flags and
cta_train_positions ~246 tokens
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

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