Pixieset Sessions API

openapi: 3.0.3
info:
  title: Pixieset Studio & Gallery API (Modeled, Unofficial) Clients Sessions API
  description: Pixieset does not publish a public or partner developer API - there is no self-serve API key or OAuth signup, no official API reference, and no developer program. The endpoints below model the internal, session-cookie -authenticated web APIs that power Pixieset's own Studio Manager (studio.pixieset.com) and Client Gallery (galleries.pixieset.com) web apps, as documented by an independent third party (https://trozz.github.io/pixieset-api-docs/, "unofficial documentation created through reverse engineering and API analysis... not affiliated with or endorsed by Pixieset"). Paths, parameters, and response shapes are sourced from that community project (111+ endpoints catalogued there); only a representative subset is modeled here across Clients, Sessions, Invoices, Contracts, and Gallery Collections. Nothing here is independently verified against Pixieset's current implementation - treat this as a best-effort, sourced model rather than an authoritative reference, it may change or disappear without notice, and using it against Pixieset's production systems outside of your own account should be checked against Pixieset's Terms of Service.
  version: 1.0-modeled
  contact:
    name: Pixieset
    url: https://pixieset.com
servers:
- url: https://studio.pixieset.com/api/v1
  description: Studio API (business management) - modeled, unofficial
- url: https://galleries.pixieset.com/api/v1
  description: Gallery API (client delivery & sales) - modeled, unofficial
security:
- sessionCookie: []
tags:
- name: Sessions
  description: Bookable session types, scheduling, and availability.
paths:
  /session_types/:
    get:
      operationId: listSessionTypes
      tags:
      - Sessions
      summary: List session types
      description: Bookable service definitions with scheduling and payment config.
      responses:
        '200':
          description: List of session types.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/SessionType'
    post:
      operationId: createSessionType
      tags:
      - Sessions
      summary: Create a session type
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SessionType'
      responses:
        '201':
          description: Created session type.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/SessionType'
  /session_types/{session_type_id}/check-day-avail/{date_timezone}:
    get:
      operationId: checkDayAvailability
      tags:
      - Sessions
      summary: Check day availability for a session type
      parameters:
      - name: session_type_id
        in: path
        required: true
        schema:
          type: string
          example: set_SES001ABC123DEF456GHI789JKL012
      - name: date_timezone
        in: path
        required: true
        description: 'Format: YYYY-M-D-Area/City, e.g. 2025-8-7-Europe/London'
        schema:
          type: string
      responses:
        '200':
          description: Availability for the requested day.
          content:
            application/json:
              schema:
                type: object
  /sessions:
    get:
      operationId: listSessions
      tags:
      - Sessions
      summary: List booked sessions
      responses:
        '200':
          description: Booked sessions with client and session-type info.
          content:
            application/json:
              schema:
                type: object
components:
  schemas:
    SessionType:
      type: object
      properties:
        id:
          type: string
          example: set_SES001ABC123DEF456GHI789JKL012
        name:
          type: string
        status:
          type: string
          enum:
          - published
          - draft
        duration:
          type: integer
          description: Minutes
        location:
          type: string
        payment_amount_full:
          type: integer
          description: Smallest currency unit
        currency:
          type: string
          example: gbp
        collect_payment:
          type: boolean
  securitySchemes:
    sessionCookie:
      type: apiKey
      in: cookie
      name: session_cookie
      description: Session cookie issued by the Pixieset web login flow (studio.pixieset.com/login or galleries.pixieset.com/login). This is the internal web-app session mechanism, not a published API-key or OAuth developer credential - Pixieset does not offer either for third-party use. Write operations additionally require an X-CSRF-Token header per the reverse-engineered documentation.
externalDocs:
  description: Unofficial Pixieset API documentation (trozz/pixieset-api-docs)
  url: https://trozz.github.io/pixieset-api-docs/