Writer Vision API

openapi: 3.0.3
info:
  title: File API Vision API
  version: '1.0'
servers:
- url: https://api.writer.com
security:
- bearerAuth: []
tags:
- name: Vision
paths:
  /v1/vision:
    post:
      tags:
      - Vision
      summary: Analyze images
      description: Submit images and documents with a prompt to generate an analysis. Supports JPG, PNG, PDF, and TXT files up to 7MB each.
      security:
      - bearerAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/vision_request'
            example:
              model: palmyra-vision
              variables:
              - name: image_1
                file_id: f1234
              - name: image_2
                file_id: f9876
              prompt: Describe the difference between the image {{image_1}} and the image {{image_2}}.
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              example:
                data: Image f1234 shows a densely crowded urban beach with many umbrellas, while image f9876 depicts a sparsely populated tropical beach with clear turquoise water and lush greenery
              schema:
                $ref: '#/components/schemas/vision_response'
      x-codeSamples:
      - lang: cURL
        source: "curl --location --request POST https://api.writer.com/v1/vision \\\n --header \"Authorization: Bearer <token>\" \\\n --header \"Content-Type: application/json\" \\\n--data-raw '{\"model\":\"palmyra-vision\",\"variables\":[{\"name\":\"image_1\",\"file_id\":\"f1234\"},{\"name\":\"image_2\",\"file_id\":\"f9876\"}],\"prompt\":\"Describe the difference between the image {{image_1}} and the image {{image_2}}.\"}'"
      - lang: JavaScript
        source: "import Writer from 'writer-sdk';\n\nconst client = new Writer({\n  apiKey: process.env['WRITER_API_KEY'], // This is the default and can be omitted\n});\n\nasync function main() {\n  const visionResponse = await client.vision.analyze({\n    model: 'palmyra-vision',\n    prompt: 'Describe the difference between the image {{image_1}} and the image {{image_2}}.',\n    variables: [\n      { name: 'image_1', file_id: 'f1234' },\n      { name: 'image_2', file_id: 'f9876' },\n    ],\n  });\n\n  console.log(visionResponse.data);\n}\n\nmain();"
      - lang: Python
        source: "import os\nfrom writerai import Writer\n\nclient = Writer(\n    api_key=os.environ.get(\"WRITER_API_KEY\"),  # This is the default and can be omitted\n)\nvision_response = client.vision.analyze(\n    model=\"palmyra-vision\",\n    prompt=\"Describe the difference between the image {{image_1}} and the image {{image_2}}.\",\n    variables=[{\n        \"name\": \"image_1\",\n        \"file_id\": \"f1234\",\n    }, {\n        \"name\": \"image_2\",\n        \"file_id\": \"f9876\",\n    }],\n)\nprint(vision_response.data)"
components:
  schemas:
    vision_request_file_variable:
      title: Vision Request File Variable
      description: 'An array of file variables required for the analysis. The files must be uploaded to the Writer platform before they can be used in a vision request. Learn how to upload files using the [Files API](https://dev.writer.com/api-reference/file-api/upload-files).


        Supported file types: JPG, PNG, PDF, TXT. The maximum allowed file size for each file is 7MB.'
      required:
      - name
      - file_id
      type: object
      properties:
        name:
          type: string
          description: The name of the file variable. You must reference this name in the prompt with double curly braces (`{{}}`). For example, `Describe the difference between the image {{image_1}} and the image {{image_2}}`.
        file_id:
          type: string
          description: 'The File ID of the file to analyze. The file must be uploaded to the Writer platform before it can be used in a vision request. Supported file types: JPG, PNG, PDF, TXT (max 7MB each).'
    vision_request:
      title: Vision Request
      required:
      - model
      - prompt
      - variables
      type: object
      properties:
        model:
          type: string
          description: The model to use for image analysis.
          enum:
          - palmyra-vision
        prompt:
          type: string
          description: The prompt to use for the image analysis. The prompt must include the name of each image variable, surrounded by double curly braces (`{{}}`). For example, `Describe the difference between the image {{image_1}} and the image {{image_2}}`.
        variables:
          type: array
          items:
            $ref: '#/components/schemas/vision_request_file_variable'
    vision_response:
      title: Vision Response
      required:
      - data
      type: object
      properties:
        data:
          type: string
          description: The result of the image analysis.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Bearer authentication header of the form `Bearer <token>`, where `<token>` is your [Writer API key](https://dev.writer.com/api-reference/api-keys).
x-mint:
  mcp:
    enabled: true