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ttc-mcp

by EmilSoleymani
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TypeScript
Hybrid

ttc-mcp

A Model Context Protocol server for the Toronto Transit Commission (TTC). Exposes subway, streetcar, and bus schedules, live vehicle positions, real-time arrivals, and service alerts to LLM clients — plus multi-modal trip planning with transfers.

Built entirely on TTC's official open feeds — no API key required:

  • Static GTFS (routes, stops, schedules) from open.toronto.ca

  • GTFS-Realtime (vehicle positions, trip updates, service alerts) from bustime.ttc.ca

TypeScript · stdio + Streamable HTTP transports · self-hostable via Docker or Vercel.

Sibling project to go-planning-mcp (GO Transit / Metrolinx).

Status: in active development. Tracked via a wayfinder map under .wayfinder/ — most of the static-schedule surface (stops, routes, schedules) is implemented; real-time tools and plan_trip are landing incrementally. See the repo's open issues for exact status.

Scope notes

  • Real-time coverage (live positions & arrivals) is bus + streetcar only — TTC does not publish subway real-time. Subway is served from the static schedule plus service alerts.

  • Fares are a flat PRESTO fare with a 2-hour transfer window (no machine-readable fare data in the feed).

Related MCP server: BVG MCP Server

Self-hosting

Quick start (Docker)

docker run -p 3000:3000 ghcr.io/emilsoleymani/ttc-mcp:latest

Or with the provided docker-compose.yml:

docker compose up -d

The image bakes a local libSQL file from TTC's live GTFS feed at build time, so it's self-contained — no external database needed. Once running, connect an MCP client to http://localhost:3000/mcp (Streamable HTTP), or curl http://localhost:3000/health for a liveness check.

Configuration

Var

Purpose

Default

LIBSQL_URL

Schedule DB connection: a file:... path (the Docker image's baked-in local file) or a libsql://...turso.io Turso URL

file:./data/ttc.db

LIBSQL_AUTH_TOKEN

Turso auth token (only needed when LIBSQL_URL points at Turso)

—

GTFS_RT_BASE_URL

Overridable GTFS-Realtime base URL

https://bustime.ttc.ca/gtfsrt

RT_CACHE_TTL_SECONDS

Coalescing cache window for decoded RT feeds

25

CACHE_ENABLED

Set false to disable RT response caching entirely

true

PORT

HTTP transport port

3000

Updating

The Docker image is self-contained, so picking up newer TTC schedule data means pulling a freshly-built image (the upstream GTFS Refresh workflow rebuilds and republishes on a weekly cadence, or trigger your own rebuild):

docker compose pull && docker compose up -d

If you instead point LIBSQL_URL at a shared Turso database, data freshness follows that database directly — no image update needed.

Building from source

git clone https://github.com/EmilSoleymani/ttc-mcp.git
cd ttc-mcp
npm ci
npm run ingest    # downloads the live TTC feed, builds ./data/ttc.db
npm run build
npm run start:http   # or: npm run start:stdio

License

MIT © 2026 Emil Soleymani

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