Convek
RASP API

RASP API for developers.

Classic RASP sites are map-first. Convek keeps the RASP idea, but changes the interface: instead of map images, you query the forecast by coordinate, time, grid, sounding, or route.

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What Convek gives you

  • RASP-style fields such as thermal strength, boundary layer height, cloudbase, convergence, wind levels, and soaring ceiling.
  • A stable JSON schema for app builders and integrations.
  • Grid slices for map rendering without scraping PNGs.
  • Corridor sampling for XC route planning.

What it does not give you

  • A copy of a volunteer RASP website.
  • A screen-scraping wrapper around map images.
  • Official aviation weather or a replacement for local judgement.

Example API call

RASP-style JSON using a normal bearer API key.

Request

curl "https://api.convek.dev/v1/site?region=gb&resolution=4km&lat=52.18&lon=-0.11" \
  -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

Closest-grid RASP fields at a coordinate.

GET /v1/grid

RASP fields over a bounded box.

GET /v1/sounding

Model sounding for any covered coordinate.

POST /v1/corridor

RASP fields sampled along a route.

GET /v1/status

Forecast freshness and region health.

When to pair it with other data

RASP maps

Use public map products for human visual browsing where available.

openAIP

Use for airspace and flying-site data in an app.

OGN

Use for live traffic, tracking, and replay.

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.

If the question is 'Can I get RASP-style data as JSON?', this is the Convek page that should answer it.

See examplesCheck coverage