Mathpix

Mathpix App Tokens API

Mint short-lived client-side app_token credentials (30 seconds to 12 hours; 5 minutes by default) so browsers, mobile clients, and digital-ink surfaces can call Mathpix without exposing the long-lived app_key. Token issuance is free.

Documentation GitHub OpenAPI

Operations 1

POST /v3/app-tokens Create An App Token #

Documentation

📖

Documentation

https://docs.mathpix.com/reference/post-v3-app-tokens

Specifications

⚙

OpenAPI

https://raw.githubusercontent.com/api-evangelist/mathpix/refs/heads/main/openapi/mathpix-app-tokens-api-openapi.yml

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Mathpix App Tokens API
  description: 'Mint short-lived client-side tokens so browsers, mobile apps, and digital-ink surfaces can call Mathpix without exposing your long-lived app_key. Tokens default to 5 minutes and can be issued from 30 seconds to 12 hours. Token issuance is free.

    '
  version: v3
  contact:
    name: Mathpix Support
    url: https://docs.mathpix.com
    email: support@mathpix.com
  license:
    name: Mathpix Terms of Service
    url: https://mathpix.com/terms-of-service
servers:
- url: https://api.mathpix.com
  description: Production Server
security:
- AppKeyAuth: []
tags:
- name: App Tokens
  description: Issue temporary client-side tokens.
paths:
  /v3/app-tokens:
    post:
      summary: Create An App Token
      description: Mint a temporary app_token for client-side use. Authenticated with the long-lived app_key only.
      operationId: createAppToken
      tags:
      - App Tokens
      parameters:
      - name: app_key
        in: header
        required: true
        schema:
          type: string
        description: Long-lived Mathpix application secret.
      - name: Content-Type
        in: header
        required: true
        schema:
          type: string
          default: application/json
      requestBody:
        required: false
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AppTokenRequest'
      responses:
        '200':
          description: Token issued.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AppTokenResponse'
components:
  schemas:
    AppTokenResponse:
      type: object
      properties:
        app_token:
          type: string
          description: Short-lived bearer token to send as the app_token header from client code.
        app_token_expires_at:
          type: integer
          description: Unix epoch seconds when the token expires.
        strokes_session_id:
          type: string
          description: Optional session identifier for digital-ink workflows.
    AppTokenRequest:
      type: object
      properties:
        expires:
          type: integer
          description: Token lifetime in seconds. Minimum 30, maximum 43200 (12 hours). Default 300.
          minimum: 30
          maximum: 43200
          default: 300
        include_strokes_session_id:
          type: boolean
          description: When true, the response includes a strokes_session_id for digital-ink capture sessions.
  securitySchemes:
    AppKeyAuth:
      type: apiKey
      in: header
      name: app_key