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

# Kling 1.5 API Documentation

> Kling 1.5 is an upgrade over Kling 1.0, offering better video quality, more realistic motion, and improved prompt relevance. Learn how to integrate it here. 

Check out Kling 1.5 API pricing [here](https://api.pollo.ai/pricing?modelName=kling-v1-5\&modelType=video), cheaper than Fal AI.


## OpenAPI

````yaml POST /v1/generation/kling-ai/kling-v1-5/video
openapi: 3.0.3
info:
  title: Pollo | AI Video Collection
  description: >-
    ✨RESTful API Document. Model discovery: GET /api/v1/model-specs (public,
    keyless).
  version: 1.0.0
servers:
  - url: https://pollo.ai/api/platform
security: []
externalDocs:
  url: https://pollo.ai/api/platform/api/openapi.json
paths:
  /v1/generation/kling-ai/kling-v1-5/video:
    post:
      tags:
        - Video
      summary: kling-v1-5
      operationId: v1-kling-ai/kling-v1-5/video
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - input
              properties:
                input:
                  type: object
                  properties:
                    prompt:
                      type: string
                      maxLength: 2500
                      description: Text prompt describing the content to generate.
                    negativePrompt:
                      type: string
                      maxLength: 2048
                      description: >-
                        Text describing elements to avoid in the generated
                        output.
                    image:
                      type: string
                      description: >-
                        First-frame / reference image URL (HTTP(S); base64 not
                        allowed). Supported formats: JPG/JPEG, PNG. Aspect ratio
                        must be within 1:4 to 4:1.
                    imageTail:
                      type: string
                      description: >-
                        Tail (end-frame) image URL (HTTP(S); base64 not
                        allowed). Supported formats: JPG/JPEG, PNG. Aspect ratio
                        must be within 1:4 to 4:1.
                    duration:
                      type: number
                      enum:
                        - 5
                        - 10
                      default: 5
                      description: The duration of the generated video, in seconds.
                    mode:
                      type: string
                      enum:
                        - pro
                        - std
                        - 4K
                      default: std
                      description: >-
                        Generation mode of the model (e.g. a faster or
                        higher-quality tier).
                    strength:
                      type: number
                      minimum: 0
                      maximum: 100
                      default: 50
                      description: >-
                        Prompt adherence strength; higher values follow the
                        prompt more strictly.
                  required:
                    - image
                  description: |-
                    Constraints:
                    - imageTail (end frame) is only supported in pro mode
                webhookUrl:
                  type: string
                  format: uri
                  description: >-
                    Webhook URL (HTTP(S)) that receives status callbacks when
                    the generation succeeds or fails.
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                properties:
                  taskId:
                    type: string
                  status:
                    type: string
                    enum:
                      - waiting
                      - succeed
                      - failed
                      - processing
                required:
                  - taskId
                  - status
                additionalProperties: false
        default:
          $ref: '#/components/responses/error'
      security:
        - ApiKeyAuth: []
components:
  responses:
    error:
      description: Error response
      content:
        application/json:
          schema:
            type: object
            properties:
              message:
                type: string
              code:
                type: string
              issues:
                type: array
                items:
                  type: object
                  properties:
                    message:
                      type: string
                  required:
                    - message
                  additionalProperties: false
            required:
              - message
              - code
            additionalProperties: false
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: API key to authorize requests

````