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OpenAPI Specification

openapi: 3.2.0
info:
  title: Forum Account Exchange API
  version: '1.0'
  description: 'The Forum API provides programmatic access to the Forum perpetual futures exchange.

    Trade attention-based perpetual futures, access real-time market data, and manage your account.


    ## Base URL


    All endpoints are relative to `https://api.forum.market/v1`.


    ## Authentication


    Public endpoints (market data, exchange status) require no authentication.

    Private endpoints (orders, positions, account) require HMAC-SHA256 signed requests.


    See the [Authentication](/api-reference/authentication) guide for details.

    '
  contact:
    name: Forum Support
    email: contact@forum.market
    url: https://forum.market
  termsOfService: https://forum-legal.s3.us-east-2.amazonaws.com/terms-of-service.pdf
servers:
- url: https://api.forum.market/v1
  description: Production
security:
- ForumAccessKey: []
  ForumAccessTimestamp: []
  ForumAccessSign: []
tags:
- name: Exchange
  description: Exchange status and server time
paths:
  /time:
    get:
      operationId: getServerTime
      summary: Get server time
      description: Returns the current server time. Use this to measure clock skew for HMAC signature generation.
      tags:
      - Exchange
      security: []
      responses:
        '200':
          description: Server time
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ServerTime'
        '429':
          $ref: '#/components/responses/RateLimited'
  /exchange/status:
    get:
      operationId: getExchangeStatus
      summary: Get exchange status
      description: Returns the current exchange operational status and maintenance windows.
      tags:
      - Exchange
      security: []
      responses:
        '200':
          description: Exchange status
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExchangeStatus'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  responses:
    RateLimited:
      description: Rate limit exceeded
      headers:
        Retry-After:
          schema:
            type: integer
          description: Seconds to wait before retrying
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
          example:
            error:
              code: RATE_LIMIT_EXCEEDED
              message: Rate limit exceeded. Try again in 5 seconds.
  schemas:
    ExchangeStatus:
      type: object
      required:
      - inMaintenance
      properties:
        inMaintenance:
          type: boolean
          description: Whether the exchange is currently in maintenance mode
          example: false
        currentWindow:
          oneOf:
          - $ref: '#/components/schemas/MaintenanceWindow'
          - type: 'null'
          description: Current maintenance window, if active
        nextWindow:
          oneOf:
          - $ref: '#/components/schemas/MaintenanceWindow'
          - type: 'null'
          description: Next scheduled maintenance window
    ErrorResponse:
      type: object
      required:
      - error
      properties:
        error:
          type: object
          required:
          - code
          - message
          properties:
            code:
              type: string
              description: Machine-readable error code
              example: INVALID_PARAMETER
            message:
              type: string
              description: Human-readable error message
              example: Request validation failed
            details:
              type: object
              description: Additional error details
              example:
                fields:
                - field: ticker
                  message: Required
    MaintenanceWindow:
      type: object
      required:
      - declaredAt
      - startTime
      - endTime
      properties:
        declaredAt:
          type: string
          format: date-time
          example: '2026-02-24T12:00:00.000Z'
        startTime:
          type: string
          format: date-time
          example: '2026-02-25T00:00:00.000Z'
        endTime:
          type: string
          format: date-time
          example: '2026-02-25T02:00:00.000Z'
        reason:
          type:
          - string
          - 'null'
          example: Scheduled maintenance
    ServerTime:
      type: object
      required:
      - epoch
      - iso
      properties:
        epoch:
          type: integer
          description: Unix timestamp in seconds
          example: 1740441600
        iso:
          type: string
          format: date-time
          description: ISO 8601 timestamp
          example: '2026-02-25T00:00:00.000Z'
  securitySchemes:
    ForumAccessKey:
      type: apiKey
      in: header
      name: FORUM-ACCESS-KEY
      description: Your API key ID (e.g. `fk_a1b2c3d4e5f6...`)
    ForumAccessTimestamp:
      type: apiKey
      in: header
      name: FORUM-ACCESS-TIMESTAMP
      description: Unix epoch in seconds (UTC), as a string
    ForumAccessSign:
      type: apiKey
      in: header
      name: FORUM-ACCESS-SIGN
      description: 'Base64-encoded HMAC-SHA256 signature.


        **Signature generation:**

        ```

        prehash = timestamp + method + requestPath + body

        signature = Base64(HMAC-SHA256(secret, prehash))

        ```

        '