openapi: 3.1.0
info:
  title: Split Admin Identities API
  description: The Split Admin API is a REST API that enables programmatic management of workspaces (projects), environments, traffic types, attributes, users, groups, API keys, and change requests within the Split platform (now Harness Feature Management and Experimentation). The API uses resource-oriented URLs, returns JSON responses, and requires Admin API keys for authentication. All endpoints are prefixed with /internal/api/v2 on the api.split.io host.
  version: '2.0'
  contact:
    name: Split Support
    url: https://help.split.io
  termsOfService: https://www.split.io/terms-of-service/
servers:
- url: https://api.split.io/internal/api/v2
  description: Production Server
security:
- bearerAuth: []
tags:
- name: Identities
  description: Manage identities (keys) within segments.
paths:
  /segments/{environmentId}/{segmentName}/upload:
    put:
      operationId: updateSegmentKeysViaCSV
      summary: Update segment keys via CSV
      description: Replaces all keys in a segment by uploading a CSV file containing the new set of identities.
      tags:
      - Identities
      parameters:
      - name: environmentId
        in: path
        required: true
        description: The unique identifier of the environment
        schema:
          type: string
      - name: segmentName
        in: path
        required: true
        description: The name of the segment
        schema:
          type: string
      requestBody:
        required: true
        content:
          text/csv:
            schema:
              type: string
              description: CSV file with one identity key per line
      responses:
        '200':
          description: Segment keys updated successfully
        '400':
          description: Invalid CSV format
        '401':
          description: Unauthorized - invalid or missing API key
        '404':
          description: Segment or environment not found
  /segments/{environmentId}/{segmentName}/keys:
    get:
      operationId: listSegmentKeys
      summary: List segment keys
      description: Retrieves the identity keys belonging to the specified segment in the given environment.
      tags:
      - Identities
      parameters:
      - name: environmentId
        in: path
        required: true
        description: The unique identifier of the environment
        schema:
          type: string
      - name: segmentName
        in: path
        required: true
        description: The name of the segment
        schema:
          type: string
      - $ref: '#/components/parameters/limitParam'
      - $ref: '#/components/parameters/offsetParam'
      responses:
        '200':
          description: Successful response containing segment keys
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SegmentKeysList'
        '401':
          description: Unauthorized - invalid or missing API key
        '404':
          description: Segment or environment not found
    post:
      operationId: addSegmentKeys
      summary: Add keys to segment
      description: Adds identity keys to the specified segment in the given environment.
      tags:
      - Identities
      parameters:
      - name: environmentId
        in: path
        required: true
        description: The unique identifier of the environment
        schema:
          type: string
      - name: segmentName
        in: path
        required: true
        description: The name of the segment
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SegmentKeysUpdate'
      responses:
        '200':
          description: Keys added successfully
        '400':
          description: Invalid request body
        '401':
          description: Unauthorized - invalid or missing API key
        '404':
          description: Segment or environment not found
    delete:
      operationId: removeSegmentKeys
      summary: Remove keys from segment
      description: Removes identity keys from the specified segment in the given environment.
      tags:
      - Identities
      parameters:
      - name: environmentId
        in: path
        required: true
        description: The unique identifier of the environment
        schema:
          type: string
      - name: segmentName
        in: path
        required: true
        description: The name of the segment
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SegmentKeysUpdate'
      responses:
        '200':
          description: Keys removed successfully
        '400':
          description: Invalid request body
        '401':
          description: Unauthorized - invalid or missing API key
        '404':
          description: Segment or environment not found
components:
  schemas:
    SegmentKeysList:
      type: object
      description: Paginated list of segment keys (identities)
      properties:
        keys:
          type: array
          items:
            type: object
            properties:
              key:
                type: string
                description: The identity key value
        count:
          type: integer
          description: Total number of keys in the segment
        offset:
          type: integer
          description: Current offset in the result set
        limit:
          type: integer
          description: Maximum number of results returned
    SegmentKeysUpdate:
      type: object
      description: Request body for adding or removing segment keys
      required:
      - keys
      properties:
        keys:
          type: array
          description: List of identity keys to add or remove
          items:
            type: string
        comment:
          type: string
          description: Optional comment describing the change
  parameters:
    offsetParam:
      name: offset
      in: query
      description: Number of results to skip for pagination
      schema:
        type: integer
        minimum: 0
        default: 0
    limitParam:
      name: limit
      in: query
      description: Maximum number of results to return per page
      schema:
        type: integer
        minimum: 1
        maximum: 200
        default: 20
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Admin API key passed as a Bearer token in the Authorization header.
externalDocs:
  description: Split Admin API Documentation
  url: https://docs.split.io/reference/introduction