> ## Documentation Index
> Fetch the complete documentation index at: https://docs.classquill.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cancel Session

> Soft-cancel a session (keeps the record). 404 if it isn't in your org; cancelling
an already-cancelled session is a 200 no-op; a completed session is 422. Marks the
session and its participants cancelled. Honours `Idempotency-Key`.



## OpenAPI

````yaml /openapi.json post /v1/sessions/{session_id}/cancel
openapi: 3.1.0
info:
  title: EquateIt Public API
  description: >-
    REST API for EquateIt tutoring organisations. Pipe your sessions, invoices,
    payments, tutor earnings, students, and more into your own tools. Most
    endpoints are reads; a focused set of writes (each gated by a *:write scope)
    create or update data, including creating student/tutor/parent accounts.


    Authenticate every request with an org API key:

        Authorization: Token token=ei_live_...

    Mint keys in the EquateIt app under Settings → Developers.
  version: 1.0.0
servers: []
security:
  - ApiKeyAuth: []
tags:
  - name: General
  - name: Sessions
  - name: Tutors
  - name: Students & Parents
  - name: Billing
  - name: Curriculum
  - name: Coursework
  - name: Operations
  - name: Pricing
  - name: Bookings
  - name: Blog
  - name: Reports
paths:
  /v1/sessions/{session_id}/cancel:
    post:
      tags:
        - Sessions
      summary: Cancel Session
      description: >-
        Soft-cancel a session (keeps the record). 404 if it isn't in your org;
        cancelling

        an already-cancelled session is a 200 no-op; a completed session is 422.
        Marks the

        session and its participants cancelled. Honours `Idempotency-Key`.
      operationId: cancel_session_v1_sessions__session_id__cancel_post
      parameters:
        - name: session_id
          in: path
          required: true
          schema:
            type: string
            title: Session Id
        - name: Idempotency-Key
          in: header
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            title: Idempotency-Key
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SessionCancel'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Session'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    SessionCancel:
      properties:
        reason:
          anyOf:
            - type: string
            - type: 'null'
          title: Reason
      additionalProperties: false
      type: object
      title: SessionCancel
      description: POST /v1/sessions/{session_id}/cancel request body.
    Session:
      properties:
        id:
          type: string
          title: Id
        status:
          anyOf:
            - type: string
            - type: 'null'
          title: Status
        title:
          anyOf:
            - type: string
            - type: 'null'
          title: Title
        tutor_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Tutor Id
        student_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Student Id
        starts_at:
          anyOf:
            - type: string
            - type: 'null'
          title: Starts At
        ends_at:
          anyOf:
            - type: string
            - type: 'null'
          title: Ends At
        duration_minutes:
          anyOf:
            - type: integer
            - type: 'null'
          title: Duration Minutes
        tutor_pay_rate_cents:
          anyOf:
            - type: integer
            - type: 'null'
          title: Tutor Pay Rate Cents
        student_rate_cents:
          anyOf:
            - type: integer
            - type: 'null'
          title: Student Rate Cents
        amount_owed_cents:
          anyOf:
            - type: integer
            - type: 'null'
          title: Amount Owed Cents
        mode:
          anyOf:
            - type: string
            - type: 'null'
          title: Mode
        subject_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Subject Id
        created_at:
          anyOf:
            - type: string
            - type: 'null'
          title: Created At
        completed_at:
          anyOf:
            - type: string
            - type: 'null'
          title: Completed At
      type: object
      required:
        - id
      title: Session
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: Org API key as `Token token=ei_live_...`

````