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

# Get avatar upload URL

> Returns a presigned S3 URL for the user to upload their avatar. Allowed types: JPEG, PNG, GIF, WebP. Max size: 5 MB. After upload, the image is automatically processed to WebP and served via CDN.



## OpenAPI

````yaml /openapi/openapi.json post /users/me/avatar
openapi: 3.0.2
info:
  title: AGG API
  version: 1.0.0
  description: >-
    Prediction market aggregator REST API — authentication, users, venue events,
    venue markets, orderbooks, charts, and execution workflows.
servers:
  - url: https://api.agg.market
    description: Production
  - url: https://api.staging.agg.market
    description: Staging
security: []
paths:
  /users/me/avatar:
    post:
      tags:
        - Users
      summary: Get avatar upload URL
      description: >-
        Returns a presigned S3 URL for the user to upload their avatar. Allowed
        types: JPEG, PNG, GIF, WebP. Max size: 5 MB. After upload, the image is
        automatically processed to WebP and served via CDN.
      operationId: createAvatarUploadUrl
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - contentType
              properties:
                contentType:
                  type: string
                  enum:
                    - image/jpeg
                    - image/png
                    - image/gif
                    - image/webp
      responses:
        '200':
          description: '200'
          content:
            application/json:
              schema:
                type: object
                required:
                  - uploadUrl
                  - assetKey
                  - cdnUrl
                properties:
                  uploadUrl:
                    type: string
                  assetKey:
                    type: string
                  cdnUrl:
                    type: string
        '401':
          description: '401'
          content:
            application/json:
              schema:
                type: object
                required:
                  - message
                properties:
                  message:
                    type: string
        '403':
          description: '403'
          content:
            application/json:
              schema:
                type: object
                required:
                  - message
                properties:
                  message:
                    type: string
        '415':
          description: '415'
          content:
            application/json:
              schema:
                type: object
                required:
                  - message
                properties:
                  message:
                    type: string
      security:
        - appId: []
          bearerAuth: []
components:
  securitySchemes:
    appId:
      type: apiKey
      in: header
      name: x-app-id
      description: Your application ID. Required for all app-tier and user-tier routes.
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        JWT access token returned by POST /auth/verify. Required for user-tier
        routes.

````