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Kernel Browser Filesystem API

Read, write, and manage files on the browser instance.

Kernel Browser Filesystem API is one of 22 APIs that Kernel publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Browser Filesystem. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 15 operations across 15 paths, and defines 10 schemas. It is described by OpenAPI 3.1.0, at version 0.1.0.

Requests are made against a single base URL, https://api.onkernel.com.

15 operations 15 paths 10 schemas 1 DELETE5 GET3 POST6 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
0.1.0
Base URL
https://api.onkernel.com
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

Kernel Browser Filesystem API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

Paths & Operations 15

Across 15 paths, the API surfaces 15 operations — 1 DELETE, 5 GET, 3 POST, 6 PUT. Each is listed below with its method, path, parameters, and response codes.

Browser Filesystem 15

Read, write, and manage files on the browser instance.

GET
/browsers/{id}/fs/read_file
Read file contents
readFile 2 params → 200400403404500
PUT
/browsers/{id}/fs/write_file
Write or create a file
writeFile 3 params body → 201400403404500
GET
/browsers/{id}/fs/list_files
List files in a directory
listFiles 2 params → 200400403404500
PUT
/browsers/{id}/fs/create_directory
Create a new directory
createDirectory 1 param body → 201400403500
PUT
/browsers/{id}/fs/delete_file
Delete a file
deleteFile 1 param body → 200400403404500
PUT
/browsers/{id}/fs/delete_directory
Delete a directory
deleteDirectory 1 param body → 200400403404500
PUT
/browsers/{id}/fs/set_file_permissions
Set file or directory permissions/ownership
setFilePermissions 1 param body → 200400403404500
GET
/browsers/{id}/fs/file_info
Get information about a file or directory
fileInfo 2 params → 200400403404500
PUT
/browsers/{id}/fs/move
Move or rename a file or directory
movePath 1 param body → 200400403404500
POST
/browsers/{id}/fs/watch
Watch a directory for changes
startFsWatch 1 param body → 201400403404500
GET
/browsers/{id}/fs/watch/{watch_id}/events
Stream filesystem events for a watch
streamFsEvents 2 params → 200400403404500
DELETE
/browsers/{id}/fs/watch/{watch_id}
Stop watching a directory
stopFsWatch 2 params → 204400403404500
GET
/browsers/{id}/fs/download_dir_zip
Download a directory as a ZIP archive
downloadDirZip 2 params → 200400403404500
POST
/browsers/{id}/fs/upload
Upload one or more files
uploadFiles 1 param body → 201400403404500
POST
/browsers/{id}/fs/upload_zip
Upload a zip archive and extract it
uploadZip 1 param body → 201400403404500

Schemas 10

The contract defines 10 schemas that model the data the API accepts and returns. The most detailed are FileInfo (6 properties), FileSystemEvent (4 properties), SetFilePermissionsRequest (4 properties), Error (4 properties). Each schema is shown below with its type and property counts.

CreateDirectoryRequest
object
2 properties 1 required
ErrorDetail
object
2 properties
DeletePathRequest
object
1 property 1 required
FileInfo
object
6 properties 6 required
SetFilePermissionsRequest
object
4 properties 2 required
FileSystemEvent
object
Filesystem change event.
4 properties 2 required
Error
object
4 properties 2 required
ListFiles
array
Array of file or directory information entries.
MovePathRequest
object
2 properties 2 required
StartFsWatchRequest
object
2 properties 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

kernel-so-browser-filesystem-api-openapi.yml Raw ↑

Other APIs Kernel publishes across the network.

Kernel MCP Server
Kernel API Keys API
Kernel Apps API
Kernel Auth Connections API
Kernel Browser Computer Controls API
Kernel Browser Logs API
Kernel Browser Playwright API
Kernel Browser Pools API
Kernel Browser Processes API
Kernel Browser Replays API
Kernel Browser Telemetry API
Kernel Browsers API