> ## Documentation Index
> Fetch the complete documentation index at: https://tbd-6fc993ce-mintlify-add-deploy-button-docs-27400.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Invoke an action

> Invoke an action.



## OpenAPI

````yaml https://api.onkernel.com/spec.yaml post /invocations
openapi: 3.1.0
info:
  title: Kernel API
  description: Developer tools and cloud infrastructure for AI agents to use web browsers
  version: 0.1.0
servers:
  - url: https://api.onkernel.com
    description: API Server
security:
  - bearerAuth: []
tags:
  - name: Invocations
    description: Invoke actions and stream or query invocation status and events.
  - name: Browsers
    description: >-
      Create and manage browser sessions, filesystem, processes, logs, and
      replays.
  - name: Proxies
    description: Create and manage proxy configurations for routing browser traffic.
  - name: Deployments
    description: Create and manage app deployments and stream deployment events.
  - name: Apps
    description: List applications and versions.
  - name: Profiles
    description: Create, list, retrieve, and delete browser profiles.
  - name: Extensions
    description: Create, list, retrieve, and delete browser extensions.
  - name: Browser Pools
    description: Create and manage browser pools for acquiring and releasing browsers.
  - name: Agent Auth
    description: Agent authentication flow endpoints for hosted credential capture.
paths:
  /invocations:
    post:
      tags:
        - Invocations
      summary: Invoke an action
      description: Invoke an action.
      operationId: postInvocations
      requestBody:
        description: Invocation parameters
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                app_name:
                  type: string
                  description: Name of the application
                  example: my-app
                version:
                  type: string
                  description: Version of the application
                  example: 1.0.0
                  default: latest
                payload:
                  type: string
                  description: Input data for the action, sent as a JSON string.
                  example: '{"data":"example input"}'
                action_name:
                  type: string
                  description: Name of the action to invoke
                  example: analyze
                async:
                  type: boolean
                  description: >-
                    If true, invoke asynchronously. When set, the API responds
                    202 Accepted with status "queued".
                  example: true
                  default: false
                async_timeout_seconds:
                  type: integer
                  description: >-
                    Timeout in seconds for async invocations (min 10, max 3600).
                    Only applies when async is true.
                  example: 600
                  default: 900
                  minimum: 10
                  maximum: 3600
              required:
                - app_name
                - version
                - action_name
      responses:
        '200':
          description: Invocation created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InvokeResponse'
        '202':
          description: Invocation queued successfully (asynchronous invocation)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InvokeResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/TooManyRequests'
        '500':
          $ref: '#/components/responses/InternalError'
      security:
        - bearerAuth: []
components:
  schemas:
    InvokeResponse:
      type: object
      properties:
        id:
          type: string
          description: ID of the invocation
          example: rr33xuugxj9h0bkf1rdt2bet
        action_name:
          type: string
          description: Name of the action invoked
          example: analyze
        status:
          type: string
          description: Status of the invocation
          enum:
            - queued
            - running
            - succeeded
            - failed
          example: queued
        status_reason:
          type: string
          description: Status reason
          example: Invocation queued for execution
        output:
          type: string
          description: >-
            The return value of the action that was invoked, rendered as a JSON
            string. This could be: string, number, boolean, array, object, or
            null.
          example: '{"result":"success","data":"processed input"}'
      required:
        - id
        - action_name
        - status
    Error:
      type: object
      required:
        - code
        - message
      properties:
        code:
          type: string
          description: Application-specific error code (machine-readable)
          example: bad_request
        message:
          type: string
          description: Human-readable error description for debugging
          example: 'Missing required field: app_name'
        details:
          type: array
          description: Additional error details (for multiple errors)
          items:
            $ref: '#/components/schemas/ErrorDetail'
        inner_error:
          $ref: '#/components/schemas/ErrorDetail'
    ErrorDetail:
      type: object
      properties:
        code:
          type: string
          description: Lower-level error code providing more specific detail
          example: invalid_input
        message:
          type: string
          description: Further detail about the error
          example: Provided version string is not semver compliant
  responses:
    BadRequest:
      description: Bad Request – invalid input
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    TooManyRequests:
      description: Too Many Requests – rate limit exceeded
      headers:
        Retry-After:
          description: Seconds to wait before retrying
          schema:
            type: integer
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    InternalError:
      description: Internal Server Error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````