See the Weblate's Web API documentation for detailed description of the API.

GET /api/tasks/1956a09c-74e4-4429-b39e-88b664975b93/?format=api
HTTP 200 OK
Allow: GET, DELETE, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "completed": false,
    "progress": 0,
    "result": null,
    "log": ""
}