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OpenAPI Specification

openapi: 3.2.0
info:
  title: ABC Trainerize Clients API
  description: Programmatic access to an ABC Trainerize personal-training / fitness-coaching business.
  version: v03
  contact:
    name: ABC Trainerize
    url: https://www.trainerize.com
  x-parent-company: ABC Fitness Solutions (Trainerize was acquired by ABC Fitness in 2021)
servers:
- url: https://api.trainerize.com/v03
  description: ABC Trainerize production API (host + v03 version prefix confirmed live; requires provisioned credentials)
security:
- apiKey: []
tags:
- name: Clients
  description: Create, update, find, and manage clients, trainer assignment, tags, and groups.
paths:
  /client/find:
    post:
      operationId: findClient
      tags:
      - Clients
      summary: Find a client
      description: Searches for a client in the business by a term such as email or name. (Modeled from the documented "Find Client" search action.)
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ClientSearchInput'
      responses:
        '200':
          description: Matching clients.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/Client'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /client/addOrUpdate:
    post:
      operationId: addOrUpdateClient
      tags:
      - Clients
      summary: Create or update a client
      description: Creates a new client or updates an existing one (the documented "Create / Update Client V2" action). Used to onboard clients from a form or CRM.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ClientInput'
      responses:
        '200':
          description: The created or updated client.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Client'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '422':
          $ref: '#/components/responses/ValidationError'
  /client/deactivate:
    post:
      operationId: deactivateClient
      tags:
      - Clients
      summary: Deactivate a client
      description: Deactivates (archives) a client so they no longer count as active.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ClientRef'
      responses:
        '200':
          description: Deactivation result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StatusResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /client/reactivate:
    post:
      operationId: reactivateClient
      tags:
      - Clients
      summary: Reactivate a client
      description: Reactivates a previously deactivated client.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ClientRef'
      responses:
        '200':
          description: Reactivation result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StatusResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /client/assignTrainer:
    post:
      operationId: assignTrainer
      tags:
      - Clients
      summary: Assign a client to a trainer
      description: Assigns (or reassigns) a client to a trainer within the business.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - userID
              - trainerID
              properties:
                userID:
                  type: integer
                trainerID:
                  type: integer
      responses:
        '200':
          description: Assignment result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StatusResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /client/tag:
    post:
      operationId: modifyClientTag
      tags:
      - Clients
      summary: Add or remove a client tag
      description: Adds a tag to or removes a tag from a client (documented add/remove tag actions).
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - userID
              - tag
              - action
              properties:
                userID:
                  type: integer
                tag:
                  type: string
                action:
                  type: string
                  enum:
                  - add
                  - remove
      responses:
        '200':
          description: Tag change result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StatusResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /client/group:
    post:
      operationId: modifyClientGroup
      tags:
      - Clients
      summary: Add or remove a client from a group
      description: Adds a client to or removes a client from a group.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - userID
              - groupID
              - action
              properties:
                userID:
                  type: integer
                groupID:
                  type: integer
                action:
                  type: string
                  enum:
                  - add
                  - remove
      responses:
        '200':
          description: Group change result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StatusResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    ClientSearchInput:
      type: object
      properties:
        email:
          type: string
          format: email
        searchTerm:
          type: string
        trainerID:
          type: integer
    Client:
      allOf:
      - $ref: '#/components/schemas/ClientInput'
      - type: object
        properties:
          userID:
            type: integer
          status:
            type: string
            enum:
            - active
            - inactive
    StatusResponse:
      type: object
      properties:
        success:
          type: boolean
        message:
          type: string
    ClientInput:
      type: object
      required:
      - email
      properties:
        email:
          type: string
          format: email
        firstName:
          type: string
        lastName:
          type: string
        phone:
          type: string
        trainerID:
          type: integer
        tags:
          type: array
          items:
            type: string
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
    ClientRef:
      type: object
      required:
      - userID
      properties:
        userID:
          type: integer
          description: The ABC Trainerize user ID of the client.
  responses:
    ValidationError:
      description: The request payload failed validation.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Missing or invalid credentials, or the plan does not include API access.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: Authorization
      description: API key provisioned in the ABC Trainerize account settings (Studio and Enterprise plans only). An OAuth2 connection is also offered for partner integrations. The exact header format is documented only in the gated help center; model as an Authorization header credential.