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

# Get a public sample thumbnail

> Authenticated JPEG thumbnail for a public sample. Streamed through this release-keyed endpoint (never a signed GCS URL). Never reserves or spends credits.



## OpenAPI

````yaml GET /public/samples/{publicId}/thumbnail
openapi: 3.1.0
info:
  title: Strand AI Platform API
  version: v1
  description: >-
    REST surface for uploading WSIs, submitting Lattice inference jobs, and
    streaming results. All endpoints require an API key or Strand AI OAuth
    access token in the `Authorization: Bearer` header.
servers:
  - url: https://app.strandai.com/api/v1
    description: Production
security:
  - ApiKey: []
  - OAuth2: []
paths:
  /public/samples/{publicId}/thumbnail:
    get:
      summary: Get a public sample's thumbnail
      description: >-
        Authenticated JPEG thumbnail for a public sample. Streamed through this
        release-keyed endpoint (never a signed GCS URL). Never reserves or
        spends credits.
      parameters:
        - name: publicId
          in: path
          required: true
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: JPEG thumbnail bytes.
          content:
            image/jpeg:
              schema:
                type: string
                format: binary
        '401':
          description: Missing or invalid credential
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: No currently-public sample matches the given publicId
          content:
            application/json:
              schema:
                type: object
                required:
                  - error
                properties:
                  error:
                    type: string
components:
  schemas:
    Error:
      type: object
      required:
        - error
        - message
      properties:
        error:
          type: string
        message:
          type: string
        required:
          type: integer
          nullable: true
        retryAfterSeconds:
          type: integer
          nullable: true
  securitySchemes:
    ApiKey:
      type: http
      scheme: bearer
      bearerFormat: sk-strand-XXXXXXXXXXXXXXXXXXXXXXXX
    OAuth2:
      type: oauth2
      description: >-
        Strand AI authorization-code flow with S256 PKCE, explicit organization
        consent, and RFC 8707 resource binding.
      flows:
        authorizationCode:
          authorizationUrl: https://auth.strandai.com/oauth2/auth
          tokenUrl: https://auth.strandai.com/oauth2/token
          scopes:
            samples:read: Read slide metadata and estimates
            samples:write: Upload and change slides
            jobs:read: Read run status
            jobs:write: Start, export, or cancel runs
            results:read: Read and download results
            credits:spend: Reserve and spend organization credits

````