/api/v1/asset-categories/{category}/fields
Create an asset category field
Add a custom-field definition to an asset category.
Last updated
Request
POST /api/v1/asset-categories/{category}/fields
Requires asset-categories:create. The token creator must remain an active administrator of the token’s organization. Category permissions.
Send Authorization: Bearer YOUR_API_TOKEN and Accept: application/json.
category is the numeric ID of an asset category in the token’s organization. Subscription categories are unavailable here.
Query parameters
This endpoint does not use query parameters.
Request body
| Field | Type | Required | Description |
|---|---|---|---|
name |
string | Yes | Field label, 2–255 characters. |
type |
string | Yes | One of text, number, date, boolean, yesno, or phone. See the options endpoint for labels. |
is_required |
boolean | No | Whether an asset must supply a value. Defaults to false on creation. Always false for boolean fields, even when true is sent. |
Requires Idempotency-Key. Generate one key per action and keep it for retries. Successful responses are remembered for 24 hours per token. Idempotency and retries.
Example
Set ASSETCENTER_API_TOKEN as described in the quick start. Replace example IDs with values from your organization. For a retry, reuse the original key instead of generating another UUID.
curl --request POST "https://my.assetcenter.app/api/v1/asset-categories/7/fields" \
--header "Authorization: Bearer $ASSETCENTER_API_TOKEN" \
--header "Accept: application/json" \
--header "Idempotency-Key: $(uuidgen)" \
--header "Content-Type: application/json" \
--data '{"name":"Registration","type":"text"}'
Response
201 Created. Illustrative response; IDs and values will differ.
{
"data": {
"id": 31,
"category_id": 7,
"name": "Registration",
"type": "text",
"is_required": false,
"has_values": false,
"can_delete": true,
"can_change_type": true
}
}
Responses describe the field definition and contain no asset values. has_values includes a stored zero, a false checkbox, or any stored date or text. can_delete and can_change_type describe current data constraints; they do not grant token permissions. Use field IDs as keys in custom_fields when writing assets. Custom-field values.
Behavior and constraints
A new field has no stored values. is_required defaults to false and is forced to false for type boolean. Adding a required field does not backfill existing assets; the requirement applies when creating an asset, changing its category, or submitting that field. Asset values are written through asset creation or asset updates. Field IDs, category IDs, values, and display positions are not accepted in the body.
Errors
401 means the customer bearer token is missing, expired, revoked, or invalid. 403 means the required permission is missing or the token creator is no longer an active organization administrator. 404 means the category or field is unavailable in this organization. 422 identifies invalid or unsupported input. 429 means a rate limit was reached. Error handling and rate limits. 409 means conflicting key reuse or a data constraint described above.