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

# Set the account fee tier

> Switch a Lighter or Robinhood account between fee tiers; read the current one from `GET /exchange/account-info`. The tier is tied to the L1 address, so sub-accounts inherit it. Robinhood runs standard and premium, Lighter also runs plus.



## OpenAPI

````yaml https://vooi-api-app.fly.dev/swagger/json post /exchange/lighter/account-tier
openapi: 3.1.0
info:
  title: VOOI API
  description: Unified perps API
  version: '1.0'
  contact: {}
servers:
  - url: https://perps-api.vooi.io
security: []
tags: []
paths:
  /exchange/lighter/account-tier:
    post:
      tags:
        - Exchange / Lighter
      summary: Set the account fee tier
      description: >-
        Switch a Lighter or Robinhood account between fee tiers; read the
        current one from `GET /exchange/account-info`. The tier is tied to the
        L1 address, so sub-accounts inherit it. Robinhood runs standard and
        premium, Lighter also runs plus.
      operationId: LighterController_setAccountTier
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SetLighterAccountTierBodyDto'
      responses:
        '404':
          description: That Lighter deployment is not connected for this user.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseDTO'
        '503':
          description: >-
            The venue refused the change or could not be reached. A refusal is
            ordinary user state — the 24-hour cooldown, or a tier the deployment
            does not run — but it reaches the client as a 503 because every
            Lighter venue error is reported the same way; the venue states which
            it was in `message`. The venue docs also require no open positions
            or orders; that is not enforced as written, so do not gate on it.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponseDTO'
      security:
        - bearer: []
components:
  schemas:
    SetLighterAccountTierBodyDto:
      type: object
      properties:
        exchange:
          type: string
          enum:
            - lighter
            - robinhood
          description: Which Lighter deployment to change the tier on
        tier:
          type: string
          enum:
            - plus
            - premium
            - standard
          description: >-
            Tier to switch to: standard charges no fees, premium charges
            volume-tiered fees on Robinhood and stake-tiered fees on Lighter,
            and plus charges flat fees for higher rate limits and exists on
            Lighter only
      required:
        - exchange
        - tier
      title: SetLighterAccountTier
    ErrorResponseDTO:
      type: object
      properties:
        message:
          type: string
          example: 'Invalid order id: 123'
        statusCode:
          example: 503
          type: number
      required:
        - message
      title: ErrorResponse
  securitySchemes:
    bearer:
      scheme: bearer
      bearerFormat: JWT
      type: http

````

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