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

# Execute a node app

> Execute a node app by version ID. The request body should contain the input data as a JSON object matching the node app's input schema. Returns a job that can be tracked using /jobs/{id}.



## OpenAPI

````yaml https://api.krea.ai/openapi.json post /node-apps/{id}/execute
openapi: 3.1.0
info:
  title: Krea API
  version: v1
servers:
  - url: https://api.krea.ai
    description: Krea API
security:
  - bearerAuth: []
tags:
  - name: General
    description: Core API operations including job management and billing information
  - name: Krea
    description: Krea-owned generation models including Krea 2
  - name: Assets
    description: >-
      Asset management endpoints for uploading and managing images, videos,
      audio files, and 3D models
  - name: Styles
    description: Style (LoRA) generation and management endpoints
  - name: Node Apps
    description: Executing custom node apps built in our nodes tool
  - name: Image
    description: Image generation endpoints
  - name: Image Enhance
    description: Image enhance endpoints
  - name: Video
    description: Video generation endpoints
  - name: Video Enhance
    description: Video enhance and upscale endpoints
  - name: 3D
    description: 3D model generation and export endpoints
paths:
  /node-apps/{id}/execute:
    post:
      tags:
        - Node Apps
      summary: Execute a node app
      description: >-
        Execute a node app by version ID. The request body should contain the
        input data as a JSON object matching the node app's input schema.
        Returns a job that can be tracked using /jobs/{id}.
      parameters:
        - in: path
          name: id
          schema:
            type: string
            description: Node app version ID
          required: true
          description: Node app version ID
      requestBody:
        content:
          application/json:
            schema:
              type: object
              propertyNames:
                type: string
              additionalProperties: {}
              description: >-
                Input data for the node app execution, matching the node app's
                input schema
      responses:
        '200':
          description: >-
            Execution job created successfully. The job will be in a processing
            state until completed. Use /jobs/{id} to check progress.
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  properties:
                    job_id:
                      type: string
                      format: uuid
                      pattern: >-
                        ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
                    status:
                      type: string
                      enum:
                        - backlogged
                        - queued
                        - scheduled
                        - processing
                        - sampling
                        - intermediate-complete
                        - completed
                        - failed
                        - cancelled
                    created_at:
                      type: string
                      format: date-time
                      pattern: >-
                        ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
                    completed_at:
                      type: string
                      format: date-time
                      pattern: >-
                        ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
                    result:
                      type: object
                      properties:
                        urls:
                          anyOf:
                            - type: array
                              items:
                                type: string
                                format: uri
                            - type: array
                              items:
                                type: object
                                properties:
                                  type:
                                    type: string
                                    enum:
                                      - model
                                      - preview
                                  url:
                                    type: string
                                    format: uri
                                required:
                                  - type
                                  - url
                                additionalProperties: false
                            - type: object
                              propertyNames:
                                type: string
                              additionalProperties:
                                type: string
                                format: uri
                        style_id:
                          type: string
                      additionalProperties: false
                    error:
                      type: object
                      properties:
                        code:
                          type: string
                        message:
                          type: string
                      required:
                        - code
                      additionalProperties: false
                  required:
                    - job_id
                    - status
                    - created_at
                  additionalProperties: false
        '400':
          description: Invalid request parameters
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                required:
                  - error
                additionalProperties: false
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                required:
                  - error
                additionalProperties: false
        '402':
          description: You have run out of credits.
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                required:
                  - error
                additionalProperties: false
        '403':
          description: This node app cannot be used via the API.
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                required:
                  - error
                additionalProperties: false
        '404':
          description: Node app version not found
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                required:
                  - error
                additionalProperties: false
        '429':
          description: You have reached the maximum number of concurrent jobs.
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                required:
                  - error
                additionalProperties: false
components:
  securitySchemes:
    bearerAuth:
      scheme: bearer
      bearerFormat: Bearer
      type: http

````