Convek
Soaring weather API

Soaring weather API for gliding and paragliding apps.

Convek turns RASP-style soaring forecasts into a REST JSON API. Instead of scraping maps or estimating thermal fields from generic weather APIs, you can request forecast data by coordinate, time, grid, or route.

Create a Free API KeyQuickstart

What Convek gives you

  • Thermal strength, usable soaring height, cloudbase, boundary layer height, convergence, wind levels, soundings, and day ratings.
  • Point forecasts, full-day hourly forecasts, grid slices, and route or corridor samples.
  • Live API coverage for UK, Germany, Switzerland, Austria, Slovenia, and Czechia at 4 km.
  • API key auth, sandbox keys, OpenAPI docs, and stable JSON response shapes.

What it does not give you

  • Official aviation weather or safety-critical go/no-go advice.
  • Airspace, NOTAMs, live aircraft traffic, or flight scoring.
  • A finished pilot-facing map product. Convek is the data layer for tools and apps.

Example API call

Point forecast using a normal bearer API key.

Request

curl "https://api.convek.dev/v1/site?region=gb&resolution=4km&lat=51.88&lon=-1.55&time=13:00" \
  -H "Authorization: Bearer cvk_live_your_key_here"

Response

{
  "valid_date": "2026-05-25",
  "valid_time": "13:00",
  "rasp_model": "gb/4km",
  "site": {
    "wstar_ms": 2.4,
    "hglider_agl_m": 1520,
    "cloudbase_agl_ft": 5200,
    "thermal_trigger_temp_c": null,
    "surface_wind_speed_ms": 3.4,
    "day_rating": "good"
  }
}

Endpoints this maps to

GET /v1/site

One-hour forecast for a coordinate.

GET /v1/forecast

Full-day hourly forecast at a coordinate.

GET /v1/grid

Bounded grid slices for maps and overlays.

POST /v1/corridor

Weather sampled along an XC route.

GET /v1/sounding

Vertical profile for a coordinate.

When to pair it with other data

openAIP

Use openAIP for airspace, airports, navaids, and flying-site data.

OGN

Use Open Glider Network for live traffic and tracking.

Open-Meteo

Use Open-Meteo for broad generic weather fallback outside Convek coverage.

Current coverage

Live 4 km regions are UK, Germany, Switzerland, Austria, Slovenia, and Czechia.

Route-first data

Corridor sampling turns a route into hourly forecast conditions along the line.

Built for integration

REST JSON, API keys, OpenAPI docs, sandbox keys, and stable endpoint names.

Use it in a real product.

Use Convek when your product needs soaring-specific forecast data as JSON: a club display, XC planner, vario companion app, Telegram bot, or internal tool.

See examplesCheck coverage