> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mangrovesystems.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Retrieve a custom field definition

> Returns a specific custom field definition by friendly ID.



## OpenAPI

````yaml GET /custom_field_definitions/{id}
openapi: 3.1.0
info:
  title: Mangrove - API
  version: 1.1.0
servers:
  - url: https://app.gomangrove.com/api/v1
security:
  - sec0: []
paths:
  /custom_field_definitions/{id}:
    get:
      summary: Retrieve a custom field definition
      description: Returns a specific custom field definition by friendly ID.
      operationId: retrieve-custom-field-definition
      parameters:
        - name: id
          in: path
          required: true
          description: Custom field definition friendly ID (e.g., cfd_abc123def456)
          schema:
            type: string
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value:
                    id: 42
                    friendly_id: cfd_abc123def456
                    key: serial
                    label: Serial Number
                    object_type: asset
                    value_type: string
                    enumeration_options: null
                    order: 1
                    is_required: false
                    project_id: null
                    created_at: '2026-01-15T10:00:00.000Z'
                    updated_at: '2026-01-15T10:00:00.000Z'
        '404':
          description: '404'
          content:
            application/json:
              examples:
                Result:
                  value:
                    status: error
                    statusCode: 404
                    errors:
                      - message: Record not found
      deprecated: false
components:
  securitySchemes:
    sec0:
      type: apiKey
      in: header
      name: Authorization
      x-bearer-format: ''

````