Kernel Browser Logs API

openapi: 3.2.0
info:
  description: Developer tools and cloud infrastructure for AI agents to use web browsers
  title: Kernel Browser Logs API
  version: 0.1.0
servers:
- description: API Server
  url: https://api.onkernel.com
security:
- bearerAuth: []
tags:
- description: Stream logs from the browser instance.
  name: Browser Logs
paths:
  /browsers/{id_or_name}/logs/stream:
    get:
      operationId: logsStream
      parameters:
      - description: Browser session ID or name
        example: htzv5orfit78e1m2biiifpbv
        in: path
        name: id_or_name
        required: true
        schema:
          type: string
      - in: query
        name: source
        required: true
        schema:
          enum:
          - path
          - supervisor
          type: string
      - in: query
        name: follow
        required: false
        schema:
          default: true
          type: boolean
      - description: only required if source is path
        in: query
        name: path
        required: false
        schema:
          type: string
      - description: only required if source is supervisor
        in: query
        name: supervisor_process
        required: false
        schema:
          type: string
      responses:
        '200':
          content:
            text/event-stream:
              schema:
                $ref: '#/components/schemas/LogEvent'
          description: SSE stream of logs
          headers:
            X-SSE-Content-Type:
              description: Media type of SSE data events (application/json)
              schema:
                const: application/json
                type: string
        '400':
          $ref: '#/components/responses/BadRequest'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalError'
        default:
          $ref: '#/components/responses/BrowserProxyError'
      security:
      - bearerAuth: []
      summary: Stream log files on the browser instance via SSE
      tags:
      - Browser Logs
components:
  responses:
    BadRequest:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Bad Request – invalid input
    NotFound:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Resource not found
    InternalError:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Internal Server Error
    BrowserProxyError:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/InstanceProxyError'
      description: Error returned by the browser or its proxy
  schemas:
    ErrorDetail:
      properties:
        code:
          description: Lower-level error code providing more specific detail
          example: invalid_input
          type: string
        message:
          description: Further detail about the error
          example: Provided version string is not semver compliant
          type: string
      type: object
    Error:
      properties:
        code:
          description: Application-specific error code (machine-readable)
          example: bad_request
          type: string
        details:
          description: Additional error details (for multiple errors)
          items:
            $ref: '#/components/schemas/ErrorDetail'
          type: array
        inner_error:
          $ref: '#/components/schemas/ErrorDetail'
        message:
          description: Human-readable error description for debugging
          example: 'Missing required field: app_name'
          type: string
      required:
      - code
      - message
      type: object
    LogEvent:
      description: A log entry from the application.
      properties:
        event:
          const: log
          description: Event type identifier (always "log").
          type: string
        message:
          description: Log message text.
          type: string
        timestamp:
          description: Time the log entry was produced.
          format: date-time
          type: string
      required:
      - event
      - message
      - timestamp
      type: object
    InstanceProxyError:
      properties:
        code:
          $ref: '#/components/schemas/InstanceProxyErrorCode'
        message:
          description: Human-readable error description for debugging
          type: string
      required:
      - code
      - message
      type: object
    InstanceProxyErrorCode:
      description: Canonical error code returned by browser instance API proxy routes
      enum:
      - invalid_request
      - unauthorized
      - forbidden
      - session_not_leased
      - not_found
      - conflict
      - session_gone
      - rate_limit_exceeded
      - internal_error
      - browser_unavailable
      type: string
  securitySchemes:
    bearerAuth:
      scheme: bearer
      type: http
x-service-info:
  categories:
  - browsers
  docs:
    apiReference: https://www.kernel.sh/docs
    homepage: https://www.kernel.sh
    llms: https://api.onkernel.com/llms.txt
x-provenance:
  method: harvested
  publisher: Kernel
  source: https://api.onkernel.com/openapi.json
  note: split by refine-openapis from the provider's own published document, verified by fetch (openapi/_original/*.fetch.json);
    stamped by stamp-openapi-provenance.py (roadmap#793)