Kernel Browser Replays API

openapi: 3.2.0
info:
  title: Kernel API Keys Browser Replays 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: Browser Replays
  description: Record and manage browser session video replays.
paths:
  /browsers/{id}/replays:
    post:
      operationId: startBrowserReplayRecording
      tags:
      - Browser Replays
      summary: Start a browser session replay recording
      description: Start recording the browser session and return a replay ID.
      security:
      - bearerAuth: []
      parameters:
      - name: id
        in: path
        required: true
        description: Browser session ID
        schema:
          type: string
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              properties:
                framerate:
                  type: integer
                  description: Recording framerate in fps. Values above 20 require GPU to be enabled on the browser session.
                  minimum: 1
                  maximum: 60
                max_duration_in_seconds:
                  type: integer
                  description: Maximum recording duration in seconds.
                  minimum: 1
                record_audio:
                  type: boolean
                  description: Record audio in addition to video. When false (the default), the recording is video-only.
                  default: false
      responses:
        '201':
          description: Recording started successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BrowserReplay'
        '400':
          $ref: '#/components/responses/BadRequest'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '409':
          $ref: '#/components/responses/Conflict'
        '500':
          $ref: '#/components/responses/InternalError'
      x-codeSamples:
      - lang: JavaScript
        source: "import Kernel from '@onkernel/sdk';\n\nconst client = new Kernel({\n  apiKey: process.env['KERNEL_API_KEY'], // This is the default and can be omitted\n});\n\nconst response = await client.browsers.replays.start('id');\n\nconsole.log(response.replay_id);"
      - lang: Python
        source: "import os\nfrom kernel import Kernel\n\nclient = Kernel(\n    api_key=os.environ.get(\"KERNEL_API_KEY\"),  # This is the default and can be omitted\n)\nresponse = client.browsers.replays.start(\n    id=\"id\",\n)\nprint(response.replay_id)"
      - lang: Go
        source: "package main\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\n\t\"github.com/kernel/kernel-go-sdk\"\n\t\"github.com/kernel/kernel-go-sdk/option\"\n)\n\nfunc main() {\n\tclient := kernel.NewClient(\n\t\toption.WithAPIKey(\"My API Key\"),\n\t)\n\tresponse, err := client.Browsers.Replays.Start(\n\t\tcontext.TODO(),\n\t\t\"id\",\n\t\tkernel.BrowserReplayStartParams{},\n\t)\n\tif err != nil {\n\t\tpanic(err.Error())\n\t}\n\tfmt.Printf(\"%+v\\n\", response.ReplayID)\n}\n"
    get:
      operationId: listBrowsersReplays
      tags:
      - Browser Replays
      summary: List browser session replays
      description: List all replays for the specified browser session.
      security:
      - bearerAuth: []
      parameters:
      - name: id
        in: path
        required: true
        description: Browser session ID
        schema:
          type: string
      responses:
        '200':
          description: List of replays retrieved successfully.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/BrowserReplay'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalError'
      x-codeSamples:
      - lang: JavaScript
        source: "import Kernel from '@onkernel/sdk';\n\nconst client = new Kernel({\n  apiKey: process.env['KERNEL_API_KEY'], // This is the default and can be omitted\n});\n\nconst replays = await client.browsers.replays.list('id');\n\nconsole.log(replays);"
      - lang: Python
        source: "import os\nfrom kernel import Kernel\n\nclient = Kernel(\n    api_key=os.environ.get(\"KERNEL_API_KEY\"),  # This is the default and can be omitted\n)\nreplays = client.browsers.replays.list(\n    \"id\",\n)\nprint(replays)"
      - lang: Go
        source: "package main\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\n\t\"github.com/kernel/kernel-go-sdk\"\n\t\"github.com/kernel/kernel-go-sdk/option\"\n)\n\nfunc main() {\n\tclient := kernel.NewClient(\n\t\toption.WithAPIKey(\"My API Key\"),\n\t)\n\treplays, err := client.Browsers.Replays.List(context.TODO(), \"id\")\n\tif err != nil {\n\t\tpanic(err.Error())\n\t}\n\tfmt.Printf(\"%+v\\n\", replays)\n}\n"
  /browsers/{id}/replays/{replay_id}:
    get:
      operationId: getBrowsersReplaysById
      tags:
      - Browser Replays
      summary: Download a replay recording
      description: Download or stream the specified replay recording.
      security:
      - bearerAuth: []
      parameters:
      - name: id
        in: path
        required: true
        description: Browser session ID
        schema:
          type: string
      - name: replay_id
        in: path
        required: true
        description: Replay recording identifier
        schema:
          type: string
      responses:
        '200':
          description: Replay recording retrieved successfully.
          content:
            video/mp4:
              schema:
                type: string
                format: binary
        '202':
          description: Replay recording is still in progress, please try again later
          headers:
            Retry-After:
              description: Suggested wait time in seconds before retrying
              schema:
                type: integer
                minimum: 1
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalError'
      x-codeSamples:
      - lang: JavaScript
        source: "import Kernel from '@onkernel/sdk';\n\nconst client = new Kernel({\n  apiKey: process.env['KERNEL_API_KEY'], // This is the default and can be omitted\n});\n\nconst response = await client.browsers.replays.download('replay_id', { id: 'id' });\n\nconsole.log(response);\n\nconst content = await response.blob();\nconsole.log(content);"
      - lang: Python
        source: "import os\nfrom kernel import Kernel\n\nclient = Kernel(\n    api_key=os.environ.get(\"KERNEL_API_KEY\"),  # This is the default and can be omitted\n)\nresponse = client.browsers.replays.download(\n    replay_id=\"replay_id\",\n    id=\"id\",\n)\nprint(response)\ncontent = response.read()\nprint(content)"
      - lang: Go
        source: "package main\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\n\t\"github.com/kernel/kernel-go-sdk\"\n\t\"github.com/kernel/kernel-go-sdk/option\"\n)\n\nfunc main() {\n\tclient := kernel.NewClient(\n\t\toption.WithAPIKey(\"My API Key\"),\n\t)\n\tresponse, err := client.Browsers.Replays.Download(\n\t\tcontext.TODO(),\n\t\t\"replay_id\",\n\t\tkernel.BrowserReplayDownloadParams{\n\t\t\tID: \"id\",\n\t\t},\n\t)\n\tif err != nil {\n\t\tpanic(err.Error())\n\t}\n\tfmt.Printf(\"%+v\\n\", response)\n}\n"
  /browsers/{id}/replays/{replay_id}/stop:
    post:
      operationId: stopBrowserReplayRecording
      tags:
      - Browser Replays
      summary: Stop a browser session replay recording
      description: Stop the specified replay recording and persist the video.
      security:
      - bearerAuth: []
      parameters:
      - name: id
        in: path
        required: true
        description: Browser session ID
        schema:
          type: string
      - name: replay_id
        in: path
        required: true
        description: Replay recording identifier
        schema:
          type: string
      responses:
        '200':
          description: Recording stopped successfully.
        '400':
          $ref: '#/components/responses/BadRequest'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '500':
          $ref: '#/components/responses/InternalError'
      x-codeSamples:
      - lang: JavaScript
        source: "import Kernel from '@onkernel/sdk';\n\nconst client = new Kernel({\n  apiKey: process.env['KERNEL_API_KEY'], // This is the default and can be omitted\n});\n\nawait client.browsers.replays.stop('replay_id', { id: 'id' });"
      - lang: Python
        source: "import os\nfrom kernel import Kernel\n\nclient = Kernel(\n    api_key=os.environ.get(\"KERNEL_API_KEY\"),  # This is the default and can be omitted\n)\nclient.browsers.replays.stop(\n    replay_id=\"replay_id\",\n    id=\"id\",\n)"
      - lang: Go
        source: "package main\n\nimport (\n\t\"context\"\n\n\t\"github.com/kernel/kernel-go-sdk\"\n\t\"github.com/kernel/kernel-go-sdk/option\"\n)\n\nfunc main() {\n\tclient := kernel.NewClient(\n\t\toption.WithAPIKey(\"My API Key\"),\n\t)\n\terr := client.Browsers.Replays.Stop(\n\t\tcontext.TODO(),\n\t\t\"replay_id\",\n\t\tkernel.BrowserReplayStopParams{\n\t\t\tID: \"id\",\n\t\t},\n\t)\n\tif err != nil {\n\t\tpanic(err.Error())\n\t}\n}\n"
components:
  responses:
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Unauthorized – missing or invalid authorization token
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    BadRequest:
      description: Bad Request – invalid input
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Conflict:
      description: Conflict – resource already exists
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Forbidden:
      description: Forbidden – insufficient permissions or plan
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    InternalError:
      description: Internal Server Error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    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
    BrowserReplay:
      type: object
      description: Information about a browser replay recording.
      required:
      - replay_id
      properties:
        replay_id:
          type: string
          description: Unique identifier for the replay recording.
        started_at:
          type: string
          format: date-time
          nullable: true
          description: Timestamp when replay started
        finished_at:
          type: string
          format: date-time
          nullable: true
          description: Timestamp when replay finished
        replay_view_url:
          type: string
          description: URL for viewing the replay recording.
          example: https://api.onkernel.com/browser/replays?jwt=eyJ0eXAi...&replay_id=7e2c1a9f-1234-4cde-9abc-ffeedd001122
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer