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

# Paraphrase text

> Rewrite text while preserving its original meaning. Responses are not cached due to the unique nature of each text submission.



## OpenAPI

````yaml https://api.surnex.io/openapi.json post /v1/content/paraphrase
openapi: 3.1.0
info:
  title: Surnex API
  description: |-
    Surnex SEO Platform API — api.surnex.io

    Provides the complete backend for the Surnex SEO dashboard including:
    - Multi-tenant organization management
    - Project tracking (domains)
    - Keyword rank tracking (Phase 1+)
    - Backlink analysis (Phase 3+)
    - Site auditing (Phase 4+)
    - Stripe billing integration
    - MCP endpoint for AI agents at /mcp
  version: 0.1.0
servers: []
security: []
paths:
  /v1/content/paraphrase:
    post:
      tags:
        - Content Generation
      summary: Paraphrase text
      description: >-
        Rewrite text while preserving its original meaning. Responses are not
        cached due to the unique nature of each text submission.
      operationId: paraphrase_v1_content_paraphrase_post
      parameters:
        - name: X-API-Key
          in: header
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            title: X-Api-Key
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ParaphraseRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIResponse_ParaphraseResponse_'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - HTTPBearer: []
components:
  schemas:
    ParaphraseRequest:
      properties:
        text:
          type: string
          maxLength: 5000
          minLength: 1
          title: Text
          description: Text to paraphrase.
        language_code:
          type: string
          maxLength: 10
          title: Language Code
          default: en
      type: object
      required:
        - text
      title: ParaphraseRequest
      description: Request for text paraphrasing.
    APIResponse_ParaphraseResponse_:
      properties:
        success:
          type: boolean
          title: Success
          default: true
        data:
          anyOf:
            - $ref: '#/components/schemas/ParaphraseResponse'
            - type: 'null'
      type: object
      title: APIResponse[ParaphraseResponse]
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ParaphraseResponse:
      properties:
        original_text:
          type: string
          title: Original Text
        paraphrased_text:
          type: string
          title: Paraphrased Text
        quality_score:
          anyOf:
            - type: number
            - type: 'null'
          title: Quality Score
        alternatives:
          anyOf:
            - items:
                type: string
              type: array
            - type: 'null'
          title: Alternatives
        readability_change:
          anyOf:
            - type: number
            - type: 'null'
          title: Readability Change
      type: object
      required:
        - original_text
        - paraphrased_text
      title: ParaphraseResponse
      description: Response containing paraphrased text.
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    HTTPBearer:
      type: http
      scheme: bearer

````