Create a new field in a list

Creates a new custom field in the specified list.

Field Name Rules

The name property is the technical database column name. It must:

  • Start with a lowercase letter (a–z) — uppercase letters, digits and underscores are not allowed as the first character
  • Contain only lowercase letters (a–z), digits (0–9), or underscores (_)
  • Be between 5 and 64 characters long
  • Be unique within the list

Type-Specific Behavior

  • CHECKBOX: The defaultValue must be "0" or "1" if provided
  • DATE: The defaultValue must be a valid date in YYYY-MM-DD format if provided; otherwise defaults to 0000-00-00
  • DATETIME: The defaultValue must be YYYY-MM-DD HH:MM:SS format if provided; otherwise defaults to 0000-00-00 00:00:00
  • NUMBER: Defaults to 0 if no defaultValue is provided
  • DECIMAL: Defaults to 0.00 if no defaultValue is provided
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Path Params
integer
required

The ID of the list in which to create the field

Body Params

Use this schema when creating a SELECT or RADIO field. The options array defines the selectable choices.

string
enum
required

The data type of the field. Determines which schema variant applies:

  • SELECT and RADIO → use the "SELECT or RADIO field" variant (supports options)
  • All other types → use the "Other field types" variant
Allowed:
string
required
length ≥ 1

The human-readable display name of the field

string
required
length between 5 and 64
^[a-z][a-z0-9_]*$

The technical name used as the database column name.
Must start with a lowercase letter (a–z), contain only lowercase letters (a–z), digits (0–9) or underscores (_),
and be between 5 and 64 characters long. Must be unique within the list.

string | null

The default value for the field. Type-specific rules apply:

  • CHECKBOX: must be "0" or "1"
  • DATE: must be YYYY-MM-DD format
  • DATETIME: must be YYYY-MM-DD HH:MM:SS format
string | null

An optional internal comment or description for the field

options
array of objects

List of selectable options. Each item must have a value (stored in the database)
and a text (displayed to the user).

options
Responses

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Response
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application/json