MCP server exposing 6 tools for weather-gc-ca.
This URL is a JSON-RPC 2.0 endpoint over HTTP. Issue POST requests with a JSON-RPC body. Browsers and search crawlers land here on GET.
POST https://gateway.pipeworx.io/weather-gc-ca/mcp
Content-Type: application/json
{"jsonrpc":"2.0","id":1,"method":"tools/list"}current_observations — Latest real-time surface weather observations from Environment Canada stations near a point (swob-realtime). Returns station name, observation time, air temp, dewpoint, humidity, wind, pressure, snow depth. Example: latitude 43.65, longitude -79.38 for Toronto. Keyless, official ECCC data.active_alerts — Active Environment Canada weather alerts (warnings, watches, statements) across Canada, optionally filtered near a point. Returns alert name, type, risk colour, affected area, province, effective/expiry times and a text excerpt. Example: latitude 43.65, longitude -79.38 for Toronto-area alerts. Keyless, official ECCC data.climate_daily — Daily climate records (max/min/mean temperature °C, total precipitation mm, snow on ground cm) for an Environment Canada station over a date range. Use a 7-digit climate identifier, e.g. "6158355" (TORONTO CITY) or "1108395" (VANCOUVER INTL A). Station IDs come from the climate-stations collection. Keyless, official ECCC data.geomet_collections — Directory of every dataset Environment and Climate Change Canada publishes through MSC GeoMet (100+ OGC API Features collections). Returns each collection id, title, description, keywords and geographic extent. Use it to find what Canadian weather, water, air-quality or climate-projection data exists and what its collection id is, before reaching for a purpose-built tool. Example: search "hydrometric" for river gauge datasets, "cmip5" for climate projections, "swob" for surface observations.hydrometric_stations_near — Water Survey of Canada river and lake gauges near a point, from the MSC GeoMet hydrometric-stations collection. AUTHORITATIVE for "which gauge measures the <Canadian river> at <place>" — these are the official federal hydrometric stations. Returns station number (the id you pass to hydrometric_realtime), station name, province, active/discontinued status, gross drainage area in km2, whether it reports in real time, and coordinates. Example: latitude 43.65, longitude -79.38 for Toronto-area gauges.hydrometric_realtime — Real-time water level (metres) and discharge/flow (m3/s) readings from Water Survey of Canada gauges, typically every 5-15 minutes and covering the last 30 days. AUTHORITATIVE for "how high is the <Canadian river> right now" and for flood watching in Canada. Pass a station number from hydrometric_stations_near, e.g. "02HC003" (HUMBER RIVER AT WESTON), or give latitude/longitude to get the most recent readings from every real-time gauge in the area. Readings come back newest first.Code samples (curl / TypeScript / one-click client install), schemas, and the live playground are on the pack page:
https://pipeworx.io/packs/weather-gc-ca/
Pipeworx is an open MCP gateway connecting AI agents to live data. pipeworx.io