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POST
/
api
/
v1
/
lists
Create list
curl --request POST \
  --url https://api.getarca.app/api/v1/lists \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "workspace_id": "<string>",
  "folder_id": "<string>",
  "name": "<string>",
  "icon": "<string>",
  "color": "<string>"
}
'
{
  "id": 25,
  "workspace_id": 3,
  "folder_id": 10,
  "name": "API Tasks",
  "icon": "folder-1",
  "color": "blue",
  "position": 3,
  "created_at": "2026-03-18T11:00:00.000Z"
}
Requires the lists:write scope. Viewers cannot create lists.
Lists created via the API must belong to a folder. The folder_id field is required.

​
Request body

​
workspace_id
string
required
Numeric ID of the workspace to create the list in.
​
folder_id
string
required
Numeric ID of the folder this list belongs to. The folder must exist in the same workspace. Unlike the Arca app, this field is required when creating a list via the API.
​
name
string
required
List name. Whitespace is trimmed. HTML is sanitized.
​
icon
string
Optional icon identifier slug (e.g., "folder-1", "chart", "code").
​
color
string
Optional color label. Defaults to "gray" if not provided.

​
Response

Returns the created list. The position is automatically assigned as one greater than the current maximum position in the workspace.
​
id
number
required
New list identifier.
​
workspace_id
number
required
Workspace this list belongs to.
​
folder_id
number
required
Parent folder ID.
​
name
string
required
List name.
​
icon
string | null
Icon. null if not provided.
​
color
string | null
Color. Defaults to "gray".
​
position
number
required
Auto-assigned sort position.
​
created_at
string
required
UTC ISO-8601 creation timestamp.
{
  "id": 25,
  "workspace_id": 3,
  "folder_id": 10,
  "name": "API Tasks",
  "icon": "folder-1",
  "color": "blue",
  "position": 3,
  "created_at": "2026-03-18T11:00:00.000Z"
}