openapi: 3.0.0
info:
  title: NocoDB Data Attachments Fields API
  version: '2.0'
  description: RESTful API for querying and manipulating records across tables and views in any NocoDB base. Supports full CRUD operations on rows, filtering via where-clause operators, pagination, sorting, field selection, and bulk operations. Available in v2 and v3; v3 adds quoted-value support for special characters in query parameters.
  contact:
    name: NocoDB
    url: https://nocodb.com
  license:
    name: GNU Affero General Public License v3.0
    url: https://github.com/nocodb/nocodb/blob/develop/LICENSE
servers:
- url: https://app.nocodb.com
  description: NocoDB Cloud
security:
- xcToken: []
- bearerAuth: []
tags:
- name: Fields
  description: Field/column management operations
paths:
  /api/v1/meta/tables/{tableId}/fields:
    get:
      summary: List fields
      operationId: field-list
      description: List all fields (columns) for a specific table.
      tags:
      - Fields
      parameters:
      - $ref: '#/components/parameters/tableId'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  list:
                    type: array
                    items:
                      $ref: '#/components/schemas/Field'
        '400':
          $ref: '#/components/responses/BadRequest'
      security:
      - xcToken: []
      - bearerAuth: []
    post:
      summary: Create field
      operationId: field-create
      description: Add a new field (column) to a specific table.
      tags:
      - Fields
      parameters:
      - $ref: '#/components/parameters/tableId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FieldReq'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Field'
        '400':
          $ref: '#/components/responses/BadRequest'
      security:
      - xcToken: []
      - bearerAuth: []
  /api/v1/meta/fields/{fieldId}:
    patch:
      summary: Update field
      operationId: field-update
      description: Update a specific field configuration.
      tags:
      - Fields
      parameters:
      - name: fieldId
        in: path
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FieldReq'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
        '400':
          $ref: '#/components/responses/BadRequest'
      security:
      - xcToken: []
      - bearerAuth: []
    delete:
      summary: Delete field
      operationId: field-delete
      description: Delete a specific field from a table.
      tags:
      - Fields
      parameters:
      - name: fieldId
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
        '400':
          $ref: '#/components/responses/BadRequest'
      security:
      - xcToken: []
      - bearerAuth: []
components:
  parameters:
    tableId:
      name: tableId
      in: path
      required: true
      schema:
        type: string
      description: Unique identifier of the NocoDB table
  schemas:
    Field:
      title: Field
      type: object
      properties:
        id:
          type: string
        fk_model_id:
          type: string
        title:
          type: string
        column_name:
          type: string
        uidt:
          type: string
          description: UI data type
        dt:
          type: string
          description: Database data type
        pv:
          type: boolean
          description: Primary value field
        pk:
          type: boolean
          description: Primary key field
        required:
          type: boolean
        unique:
          type: boolean
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
    FieldReq:
      title: FieldReq
      type: object
      required:
      - title
      - uidt
      properties:
        title:
          type: string
        column_name:
          type: string
        uidt:
          type: string
          description: 'UI data type. Supported values: SingleLineText, LongText, Attachment, Checkbox, MultiSelect, SingleSelect, Date, Year, Time, PhoneNumber, Email, URL, Number, Decimal, Currency, Percent, Duration, Rating, Formula, Rollup, Count, Lookup, DateTime, CreateTime, LastModifiedTime, AutoNumber, Geometry, JSON, SpecificDBType, Text, Barcode, QrCode, Links'
        required:
          type: boolean
        unique:
          type: boolean
  responses:
    BadRequest:
      description: BadRequest
      content:
        application/json:
          schema:
            type: object
            properties:
              msg:
                type: string
                example: 'BadRequest [Error]: <ERROR MESSAGE>'
            required:
            - msg
  securitySchemes:
    xcToken:
      type: apiKey
      in: header
      name: xc-token
      description: NocoDB API token
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Bearer token authentication. Use ''Authorization: Bearer <token>'' header format.'
externalDocs:
  description: NocoDB Developer Resources
  url: https://nocodb.com/docs/product-docs/developer-resources/rest-apis