Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Tencent SkillHub · Communication & Collaboration
Cta Skill
Chicago CTA transit — real-time L train arrivals, bus predictions, service alerts, and route info. Use when the user asks about Chicago public transit, L tra...
skill openclawclawhub Free
Chicago CTA transit — real-time L train arrivals, bus predictions, service alerts, and route info. Use when the user asks about Chicago public transit, L tra...
⬇ 0 downloads ★ 0 stars Unverified but indexed
Install for OpenClaw
Quick setup
- Download the package from Yavira.
- Extract the archive and review SKILL.md first.
- Import or place the package into your OpenClaw setup.
Package facts
- Download mode
- Yavira redirect
- Package format
- ZIP package
- Source platform
- Tencent SkillHub
- What's included
- CLAUDE.md, README.md, SKILL.md, package-lock.json, package.json, scripts/cta.mjs
Validation
- Use the Yavira download entry.
- Review SKILL.md after the package is downloaded.
- Confirm the extracted package contains the expected setup assets.
Install with your agent
Agent handoff
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
New install
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Then review README.md for any prerequisites, environment setup, or post-install checks. Tell me what you changed and call out any manual steps you could not complete.
Upgrade existing
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Then review README.md for any prerequisites, environment setup, or post-install checks. Summarize what changed and any follow-up checks I should run.
Trust & source
Release facts
- Source
- Tencent SkillHub
- Verification
- Indexed source record
- Version
- 1.0.0
Provenance
- Publisher
- brianleach
- Source page
- View original listing
- Canonical URL
- Open canonical page
Documentation
CTA Chicago Transit
Real-time Chicago CTA transit data — L train arrivals, bus predictions, service alerts, and route information. Requires free API keys for train and bus data; alerts work without any keys.
When to Use
User asks about CTA, L train, Blue Line, Red Line, Brown Line, or any Chicago rail line User asks about Chicago bus routes, bus tracker, or train tracker User asks "when is the next train" or "is the Red Line running" in a Chicago context User mentions specific CTA stations (O'Hare, Midway, Clark/Lake, Belmont, etc.) User asks about CTA fares, Ventra, or how to ride Chicago transit User asks about CTA service alerts, delays, or detours User asks about nearby stops or route information in Chicago
Data Sources
CTA uses 3 proprietary REST APIs. Train Tracker and Bus Tracker require free API keys. Customer Alerts is open access.
Train Tracker API (requires CTA_TRAIN_API_KEY)
Get a free key at: https://www.transitchicago.com/developers/traintrackerapply/ EndpointDescriptionArrivals by station (mapid)Train arrivals at a parent stationArrivals by stop (stpid)Train arrivals at a directional stopTrain positions (rt)Live positions of all trains on a lineFollow a run (runnumber)Track a specific train run Data refreshes approximately once per minute. Daily limit: 50,000 requests per key.
Bus Tracker API v2 (requires CTA_BUS_API_KEY)
Get a free key at: https://www.transitchicago.com/developers/bustracker/ EndpointDescriptionPredictions by stopBus arrival predictions at a stopPredictions by vehiclePredictions for a specific busVehicle locationsLive bus positions on a routeRoutes listAll active bus routesRoute directionsAvailable directions for a routeStops for route/directionAll stops along a route Bus data updates approximately every 30 seconds.
Customer Alerts API (NO key required)
EndpointDescriptionRoute statusesCurrent status of all routesAll alertsAll active service alertsAlerts by routeAlerts filtered by routeAlerts by stationAlerts filtered by station
GTFS Static Feed
FeedFormatURLGTFS Static (zip)ZIPhttps://www.transitchicago.com/downloads/sch_data/google_transit.zip Used for stop names, route info, and schedule lookups. Same stop IDs used across all APIs.
Quick Start: Use the helper scripts
The scripts in this skill's scripts/ directory handle fetching, parsing, and presenting CTA data.
Script: scripts/cta.mjs
Main entry point. Supports these commands: # L train arrivals node scripts/cta.mjs arrivals --station "Clark/Lake" node scripts/cta.mjs arrivals --mapid 40380 node scripts/cta.mjs arrivals --stop 30070 node scripts/cta.mjs arrivals --stop-search "ohare" node scripts/cta.mjs arrivals --stop-search "belmont" --route Red # Bus predictions node scripts/cta.mjs bus-arrivals --stop 456 node scripts/cta.mjs bus-arrivals --stop 456 --route 22 node scripts/cta.mjs bus-arrivals --stop-search "michigan" # Vehicle tracking node scripts/cta.mjs vehicles --route Red node scripts/cta.mjs bus-vehicles --route 22 # Service alerts node scripts/cta.mjs alerts node scripts/cta.mjs alerts --route Red # Routes and stops node scripts/cta.mjs routes node scripts/cta.mjs bus-routes node scripts/cta.mjs stops --search "belmont" node scripts/cta.mjs stops --near 41.8781,-87.6298 --radius 0.3 node scripts/cta.mjs route-info --route Red node scripts/cta.mjs route-info --route 22 # Maintenance node scripts/cta.mjs refresh-gtfs
Setup: API Keys
Train and bus commands require free API keys: Train Tracker key: Apply at https://www.transitchicago.com/developers/traintrackerapply/ Bus Tracker key: Apply at https://www.transitchicago.com/developers/bustracker/ Set environment variables: CTA_TRAIN_API_KEY and CTA_BUS_API_KEY Alert commands work without any keys.
Setup: GTFS Static Data
On first use, run node scripts/cta.mjs refresh-gtfs to download and extract the static GTFS data (routes, stops, schedules) to ~/.cta/gtfs/. This only needs to be refreshed when CTA updates their schedule.
L Train Lines Reference
Route CodeLineTerminalsRedRed LineHoward ↔ 95th/Dan RyanBlueBlue LineO'Hare ↔ Forest ParkBrnBrown LineKimball ↔ LoopGGreen LineHarlem/Lake ↔ Ashland/63rd or Cottage GroveOrgOrange LineMidway ↔ LoopPPurple LineLinden ↔ Howard (Express to Loop weekdays)PinkPink Line54th/Cermak ↔ LoopYYellow LineDempster-Skokie ↔ Howard
Key Bus Routes Reference
RouteNameNotes22ClarkMajor north-south corridor36BroadwayNorth Side lakefront77BelmontMajor east-west crosstown151SheridanLakefront express146Inner Drive/Michigan ExpressLoop to north lakefront8HalstedLong north-south route9AshlandMajor north-south corridor49WesternLongest route in system66ChicagoMajor east-west route7979thMajor south side east-west
CTA Fares Reference (2026)
Fare TypePriceRegular (Ventra/contactless)$2.50Bus transfer$0.25Rail-to-rail transferFree within 2 hoursReduced fare$1.251-Day Pass$5.003-Day Pass$15.007-Day Pass$20.0030-Day Pass$75.00 Payment via Ventra card, Ventra app, or contactless bank card. Transfers valid for 2 hours.
Tips for Users
Station IDs are in the 4xxxx range (parent stations); stop IDs in the 3xxxx range (directional) Use --station or --stop-search for name-based lookups; use --mapid for exact station IDs Alerts always work — no API key needed — so check alerts first if something seems wrong Train data refreshes ~1 minute; bus data refreshes ~30 seconds For the Loop, trains may show as arriving from different directions depending on the line
Error Handling
If CTA_TRAIN_API_KEY is not set, train commands print a helpful message with the signup URL If CTA_BUS_API_KEY is not set, bus commands print a helpful message with the signup URL Alert commands always work (no key required) Invalid station/stop searches show "No matching station found" with suggestions Network errors and API error responses produce friendly messages
Response Formatting
When presenting transit info to the user: Lead with the most actionable info (next arrival time, active alerts) Show times in 12-hour format with AM/PM Include line color AND destination (e.g., "Red Line toward 95th/Dan Ryan") For trains: show "Due" for imminent arrivals, minutes for upcoming For bus predictions, show estimated minutes until arrival If there are active service alerts for the route being queried, always mention them
External Endpoints
EndpointData SentData Receivedhttps://lapi.transitchicago.com/api/1.0/ttarrivals.aspxAPI key (query param, HTTPS)Train arrivals (JSON)https://lapi.transitchicago.com/api/1.0/ttpositions.aspxAPI key (query param, HTTPS)Train positions (JSON)https://lapi.transitchicago.com/api/1.0/ttfollow.aspxAPI key (query param, HTTPS)Train run details (JSON)https://www.ctabustracker.com/bustime/api/v2/*API key (query param, HTTPS)Bus predictions/positions (JSON)https://www.transitchicago.com/api/1.0/routes.aspxNone (GET only)Route statuses (JSON)https://www.transitchicago.com/api/1.0/alerts.aspxNone (GET only)Service alerts (JSON)https://www.transitchicago.com/downloads/sch_data/google_transit.zipNone (GET only)GTFS static data (ZIP) All API calls use HTTPS. API keys are passed as query parameters to CTA's official APIs. No other user data is transmitted.
Security & Privacy
API keys required — Train and Bus Tracker APIs require free developer keys passed as URL query parameters No user data transmitted — requests contain only API keys and route/stop identifiers, no personal information Local storage only — GTFS static data is cached locally at ~/.cta/gtfs/; no data is written elsewhere No telemetry — this skill does not phone home or collect usage data Input handling — stop names and route IDs from user input are used only for local filtering, never interpolated into shell commands
Trust Statement
This skill reads publicly available transit data from CTA's official APIs. API keys are used only for CTA API authentication. The skill does not access, store, or transmit any personal information beyond the API keys configured by the user.
Category context
Messaging, meetings, inboxes, CRM, and teammate communication surfaces.
Source: Tencent SkillHub
Largest current source with strong distribution and engagement signals.
Package contents
Included in package
3 Docs2 Config1 Scripts
- SKILL.md
- CLAUDE.md
- README.md
- scripts/cta.mjs
- package-lock.json
- package.json