{"slug":"todoist-api","name":"Todoist API","host":"api.todoist.com","site":"https://todoist.com","category":"productivity","docsUrl":null,"sources":[{"kind":"changelog","url":"https://developer.todoist.com/api/v1/"}],"url":"https://www.okapi.bot/providers/todoist-api/","json":"https://www.okapi.bot/api/v1/providers/todoist-api.json","breakingChanges":[{"slug":"get-tasks-changes-lang-parameter-was-removed","api":"todoist-api","title":"GET /tasks changes: lang parameter was removed","kind":"removal","outcome":"fails","model":null,"announcedAt":null,"effectiveAt":null,"scope":null,"calls":["GET /tasks*","query parameter lang"],"method":"GET","path":"/tasks*","source":{"url":"https://developer.todoist.com/api/v1/","kind":"changelog"},"quote":"The filter and lang parameters were removed: A new dedicated endpoint has been created specifically for filtering tasks: /api/v1/tasks/filter .","migration":"Use /api/v1/tasks/filter instead.","migrationChange":null,"needsDecision":null,"text":{"summary":"The Todoist API deprecated and removed the lang query parameter on GET /tasks* calls without specifying a shutdown date. Requests relying on this parameter now fail. This removal directly affects calls made to GET /tasks* that include the lang query parameter.","migration":"Use /api/v1/tasks/filter instead.","by":"writer"},"publishedAt":"2026-10-26T12:48:53.878Z","updatedAt":"2026-10-27T00:37:12.641Z","status":"deprecated","tone":"deprecated","url":"https://www.okapi.bot/providers/todoist-api/breaking-changes/get-tasks-changes-lang-parameter-was-removed/"}]}