openapi: 3.0.1
info:
  title: Plane Cycle Work Items Labels API
  description: 'REST API for Plane, the open-source project and product management tool. The API is organized around REST with predictable, resource-oriented URLs, accepts JSON request bodies, returns JSON responses, and uses standard HTTP response codes and verbs. Resources are scoped to a workspace and project: workspaces contain projects, and projects contain work items (issues), cycles, modules, states, labels, and members. Authentication uses an X-API-Key header. This document covers Plane Cloud (https://api.plane.so); self-hosted Community Edition instances expose the same API under their own domain.'
  termsOfService: https://plane.so/legals/terms-and-conditions
  contact:
    name: Plane Support
    url: https://plane.so/contact
  license:
    name: AGPL-3.0 (Community Edition)
    url: https://github.com/makeplane/plane/blob/master/LICENSE.txt
  version: v1
servers:
- url: https://api.plane.so/api/v1
  description: Plane Cloud
security:
- ApiKeyAuth: []
tags:
- name: Labels
paths:
  /workspaces/{workspace_slug}/projects/{project_id}/labels/:
    get:
      operationId: listLabels
      tags:
      - Labels
      summary: List all labels in a project.
      parameters:
      - $ref: '#/components/parameters/WorkspaceSlug'
      - $ref: '#/components/parameters/ProjectId'
      responses:
        '200':
          description: A list of labels.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Label'
    post:
      operationId: createLabel
      tags:
      - Labels
      summary: Create a label in a project.
      parameters:
      - $ref: '#/components/parameters/WorkspaceSlug'
      - $ref: '#/components/parameters/ProjectId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LabelCreate'
      responses:
        '201':
          description: The created label.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Label'
  /workspaces/{workspace_slug}/projects/{project_id}/labels/{label_id}/:
    get:
      operationId: getLabel
      tags:
      - Labels
      summary: Retrieve a label.
      parameters:
      - $ref: '#/components/parameters/WorkspaceSlug'
      - $ref: '#/components/parameters/ProjectId'
      - $ref: '#/components/parameters/LabelId'
      responses:
        '200':
          description: The requested label.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Label'
    patch:
      operationId: updateLabel
      tags:
      - Labels
      summary: Update a label.
      parameters:
      - $ref: '#/components/parameters/WorkspaceSlug'
      - $ref: '#/components/parameters/ProjectId'
      - $ref: '#/components/parameters/LabelId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LabelCreate'
      responses:
        '200':
          description: The updated label.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Label'
    delete:
      operationId: deleteLabel
      tags:
      - Labels
      summary: Delete a label.
      parameters:
      - $ref: '#/components/parameters/WorkspaceSlug'
      - $ref: '#/components/parameters/ProjectId'
      - $ref: '#/components/parameters/LabelId'
      responses:
        '204':
          description: The label was deleted.
components:
  schemas:
    Label:
      type: object
      properties:
        id:
          type: string
          format: uuid
        name:
          type: string
        description:
          type: string
        color:
          type: string
        parent:
          type: string
          format: uuid
        project:
          type: string
          format: uuid
        created_at:
          type: string
          format: date-time
    LabelCreate:
      type: object
      required:
      - name
      properties:
        name:
          type: string
        description:
          type: string
        color:
          type: string
        parent:
          type: string
          format: uuid
  parameters:
    LabelId:
      name: label_id
      in: path
      required: true
      schema:
        type: string
        format: uuid
    ProjectId:
      name: project_id
      in: path
      required: true
      description: The UUID of the project.
      schema:
        type: string
        format: uuid
    WorkspaceSlug:
      name: workspace_slug
      in: path
      required: true
      description: The unique slug of the workspace.
      schema:
        type: string
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: API key generated from your Plane workspace settings. Pass it in the X-API-Key header on every request.