Developer API¶
The Kasm Workspaces Developer API can be leveraged to extend the systems functionality and/or integrate with an exiting platform. Integrators interface with the API to create and manage sessions, users and groups.

Integration Workflow¶
Code-less Integration Options¶
Integrators are encouraged to review Session Casting which provides an easy way to expose access to Kasm sessions via special URLs.
API Keys¶
API Keys can be generated via the Developers tab. An API_KEY and API_KEY_SECRET will be automatically generated.

Creating an API Key¶
Authentication¶
The API key and secret must be sent with all of the following requests as json data.
{ "api_key": "bMjMwTT0JKUQ" "api_key_secret": "KUNAvRw4KLHGmldBxhRUD5sAhWkvJVzS" }
Errors¶
In the event of an error processing an api request, Kasm will respond with an error_message in the body of the json response
Example Response
{"error_message": "<error details>"}
Users¶
Create User¶
Create a new user.
-
POST
/api/public/create_user
¶ Example request:
{ "api_key":"{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user": { "username" : "test_user1@example.com", "first_name" : "Bob", "last_name" : "Williams", "locked": false, "disabled": false, "organization": "example", "phone": "123-456-7890", "password": "3UPKGg7g!a9g2@39v6" } }
Example response:
{ "user": { "first_name": "Bob", "username": "test_user1@example.com", "realm": "local", "last_name": "Williams", "phone": "123-456-7890", "last_session": null, "notes": null, "user_id": "50faa5439c574b518cd868dac9256e4b", "groups": [ { "name": "All Users", "group_id": "68d557ac4cac42cca9f31c7c853de0f3" } ], "disabled": false, "organization": "example", "locked": false } }
Get User¶
Retrieve the properties of an existing user. target_user.user_id
or target_user.username
can be passed
-
POST
/api/public/get_user
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user": { "user_id": "4bbb6998064a4d1ea4685f3cdd05feb4", "username": "user@kasm.local" } }
Example response:
{ "user": { "user_id": "4bbb6998064a4d1ea4685f3cdd05feb4", "username": "user@kasm.local", "locked": false, "last_session": "2020-11-09 14:41:33.578622", "groups": [ { "name": "All Users", "group_id": "68d557ac4cac42cca9f31c7c853de0f3" } ], "first_name": null, "last_name": null, "phone": null, "organization": null, "notes": null, "kasms": [ { "kasm_id": "28cfc2a510bb424cad18e571f11ee26c", "start_date": "2020-11-09 14:46:42.321900", "keepalive_date": "2020-11-09 14:46:43.140623", "expiration_date": "2020-11-09 15:46:43.140623", "server": { "server_id": "36e2aeff0e02445db26a521c9c85f1c1", "hostname": "proxy", "port": 443 } } ], "realm": "local", "two_factor": false, "program_id": null, "hash": "9fdfdaad0098cdd8a466b2badbaf962e40214affb07596a6e9d776a409793780" } }
Get Users¶
Retrieve the list of users registered in the system.
-
POST
/api/public/get_users
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", }
Example response:
{ "users": [ { "kasms": [], "company": {}, "username": "user@kasm.local", "locked": false, "realm": "local", "phone": null, "first_name": null, "notes": null, "user_id": "57e8fc1a-fa86-4ff4-9474-60d9831f42d5", "last_session": "2020-11-12 14:29:25.808258", "groups": [ { "name": "All Users", "group_id": "68d557ac4cac42cca9f31c7c853de0f3" } ], "disabled": true, "organization": null, "last_name": null }, { "kasms": [], "company": {}, "username": "admin@kasm.local", "locked": false, "realm": "local", "phone": null, "first_name": null, "notes": null, "user_id": "4acb13bf-1215-4972-9f0d-8c537d17f2da", "last_session": "2020-11-12 14:35:19.700863", "groups": [ { "name": "All Users", "group_id": "68d557ac4cac42cca9f31c7c853de0f3" }, { "name": "Administrators", "group_id": "31aa063c670648589533d3c42092d02a" } ], "disabled": false, "organization": null, "last_name": null } ] }
Update User¶
Update the properties of an existing user.
-
POST
/api/public/update_user
¶ Example request:
{ "api_key":"{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user": { "username" : "test_user1@example.com", "first_name" : "Bob", "last_name" : "Williams", "locked": false, "disabled": false, "organization": "example", "phone": "123-456-7890", "password": "3UPKGg7g!a9g2@39v6" } }
Example response:
{ "user": { "first_name": "Bob", "username": "test_user1@example.com", "realm": "local", "last_name": "Williams", "phone": "123-456-7890", "last_session": null, "notes": null, "user_id": "50faa5439c574b518cd868dac9256e4b", "groups": [ { "name": "All Users", "group_id": "68d557ac4cac42cca9f31c7c853de0f3" } ], "disabled": false, "organization": "example", "locked": false } }
Delete User¶
Delete an existing user. If the user has any existing Kasm sessions, deletion will fail. Set the force option to true to delete the user’s sessions and delete the user.
-
POST
/api/public/delete_user
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user": { "user_id": "4bbb6998064a4d1ea4685f3cdd05feb4" }, "force": false }
Example response:
{}
Get User Attributes¶
Get the attribute (preferences) settings for an existing user.
-
POST
/api/public/get_attributes
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user": { "user_id": "67d7c4e6-f891-4900-897f-ce5ed62fecc0", } }
Example response:
{ "user_attributes": { "ssh_public_key": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCjy8izTD7DlykY0J7iiBn4ysIRqLBwM94ZnjfYH1XAo96ay3grQjSDl5f4u0hrVz6bX62kgPlm9QvTqceNZ+rC/anKp/9nQIrDM6y2W3jNUM6Eo+Ryh7xIOII2lnCbtE/M4urX4lZx3oB2JyIMSIN3yvKUBCSht5FsFabguc8i+nwLvXjmnZx+fcR2/BNcIM9UjCfYBjLFd1XFER7aIXjRy7y2MJQHCFrzhDThNllJ6C1oMZiBsBJ5lXpBmlim80A9IvcW7YBgsAQoqLgrCvRc7IdENTzPAyyhODE/ib5SkwK/peUuCRM+SZnPpUGlv9emLXVjrg5P+TPO/N/v7lyj", "show_tips": false, "user_id": "57e8fc1afa864ff4947460d9831f42d5", "toggle_control_panel": false, "chat_sfx": true, "user_attributes_id": "ef7b72db25b14ab1ac98ac19676ac93f", "default_image": null, "auto_login_kasm": null } }
Update User Attributes¶
Update a users attributes.
-
POST
/api/public/update_user_attributes
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user_attributes": { "user_id": "67d7c4e6-f891-4900-897f-ce5ed62fecc0", "auto_login_kasm": false, "default_image": "b2609fbf72954b20a56c1fe502aa2c41", "show_tips": false, "toggle_control_panel": false } }
Example response:
{}
Kasms¶
Request Kasm¶
Requesting a Kasm will create and start the container and assign a user to that Kasm.
Note
If you intend to integrate Kasm into your app and will utilize iframes to load user sessions, be sure to set the Same Site Cookie Policy Global Setting to None if the Kasm Workspaces server is hosted under a different domain name. Reference: https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite
-
POST
/api/public/request_kasm
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "user_id": "8affcdbc16fc4910acb8a6dc268cd7ed", "image_id": "6a2d63fa8959412ca5fddd3890fb7223", "enable_sharing": true }
Example response:
{ "kasm_id": "6d62ec66-3062-4f1d-b861-aeb3f5ca2390", "session_token": "b03bf84a-53fc-4934-85e4-c434461f1178", "username": "1d47uudwcynkd2su", "status": "starting", "share_id": "fe9770a4", "user_id": "8affcdbc16fc4910acb8a6dc268cd7ed", "kasm_url": "/#/connect/kasm/6d62ec66-3062-4f1d-b861-aeb3f5ca2390/8affcdbc16fc4910acb8a6dc268cd7ed/b03bf84a-53fc-4934-85e4-c434461f1178" }
Arguments
- user_id* string:
An user Id can be specified to create the Kasm under that user. If no User ID is sent an anonymous user will be created and used for the Kasm.
- image_id* string:
An image id can be sent for the desired image. Otherwise the default image sent on the group or user level will be used.
- enable_sharing* boolean:
When the enable sharing flag is set to true the kasm will be created with sharing mode automatically enabled.
- kasm_url* string:
If specified, the browser inside the Kasm session will navigate to this page. This is only applicable if the Image used is Kasm Chrome, Kasm Firefox, or Kasm Tor Browser.
* Optional
Response Format
- kasm_id string:
Returns the ID for the newly created Kasm.
- session_token string:
Returns the token created for the user used in authorization of the Kasm.
- username string:
Returns the username of the specified or newly created user.
- status string:
Returns the operational status of the Kasm. Will be in Starting, Running or Stopped state.
- share_id string:
Returns the Share id
- user_id string:
Returns the user id of the specified or newly created user
- kasm_url string:
Returns the url path to the specified kasm. This path must be appended to the current Kasm Workspaces server address. It is in the form of /#/connect/kasm/<kasm_id>/<user_id>/<session_token>
Direct the user’s browser to this url to access the Kasm session. This link should not be re-used for different users.
Get Kasm Status¶
After creating a kasm the status can be checked with get_kasm_status. This call also updates the session token for the user creating a new connection link and invalidating the old one.
-
POST
/api/public/get_kasm_status
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "user_id": "c7357f11eb4d47ad8021b5847d8415d8", "kasm_id": "d79ccb22-f6e7-4473-b8a2-a77da82278da" }
Example response:
{ "current_time": "2020-11-12 13:30:24.833834", "kasm_url": "/#/connect/kasm/116f18170fdc4a1a87146164a880fb93/583035bb-5819-4e51-83b9-21223badc569/2d110a49-4c6a-48b9-8cfb-398d6f543d5b", "kasm": { "expiration_date": "2020-11-12 14:28:40.446756", "container_ip": "192.168.32.9", "start_date": "2020-11-12 13:28:40.446737", "point_of_presence": null, "token": "43ab8a765e1e42fe9ee637783731f577", "image_id": "e12266d0f5f44bf5afb80b6c41fabce2", "view_only_token": "6f756f76e8704772bd8e32eb4d7bb835", "cores": 1.0, "hostname": "kasm.server", "kasm_id": "116f18170fdc4a1a87146164a880fb93", "port_map": { "audio": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/audio" }, "vnc": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/vnc" }, "audio_input": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/audio_input" }, "uploads": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/uploads" } }, "image": { "image_id": "e12266d0f5f44bf5afb80b6c41fabce2", "name": "kasmweb/chrome:1.8.0", "image_src": "img/thumbnails/chrome.png", "friendly_name": "Kasm Chrome" }, "is_persistent_profile": false, "memory": 1768000000, "operational_status": "running", "client_settings": { "allow_kasm_audio": false, "idle_disconnect": 20, "lock_sharing_video_mode": true, "allow_persistent_profile": false, "allow_kasm_clipboard_down": false, "allow_kasm_microphone": false, "allow_kasm_downloads": false, "kasm_audio_default_on": false, "allow_point_of_presence": false, "allow_kasm_uploads": false, "allow_kasm_clipboard_up": false, "enable_webp": false, "allow_kasm_sharing": true, "allow_kasm_clipboard_seamless": false }, "container_id": "dbc977159f79e55c466fec52a5b4954b7c26ba88e51937d85a5077d7c79e92e5", "port": 443, "keepalive_date": "2020-11-12 13:28:40.446754", "user_id": "583035bb58194e5183b921223badc569", "persistent_profile_mode": null, "share_id": "30a09d61", "host": "192.168.32.8", "server_id": "8270f8f0acfd4a34a56cc9a9cb7a67d9" } }
Arguments
- user_id string:
The user ID associated with the requested kasm.
- kasm_id string:
The ID of the desired Kasm.
Response Format
- current_time string:
Returns the time at which the call was recieved in UTC.
- kasm json object:
Returns the Kasm object containing all of the current information.
- kasm_url string:
Returns the link path to the specified kasm. This path must be appended to the current Kasm Workspaces server address. It is in the form of /#/connect/kasm/<kasm_id>/<user_id>/<session_token>
Direct the user’s browser to this url to access the Kasm session. This link should not be re-used for different users.
Join Kasm¶
Join Kasm returns the status of the shared kasm and a join url to connect to the Kasm session as a view-only user.
-
POST
/api/public/join_kasm
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "user_id":"c7357f11eb4d47ad8021b5847d8415d8", "share_id":"89cc8cd3" }
Example response:
{ "current_time": "2020-11-12 13:36:16.065711", "session_token": "c9ade890-7693-44bc-a1d4-797bbddf6771", "user_id": "583035bb58194e5183b921223badc569", "kasm": { "port_map": { "vnc": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/vnc" }, "audio": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/audio" } }, "port": 443, "hostname": "kasm.server", "image": { "image_id": "e12266d0f5f44bf5afb80b6c41fabce2", "name": "kasmweb/chrome:1.8.0", "image_src": "img/thumbnails/chrome.png", "friendly_name": "Kasm Chrome" }, "view_only_token": "6f756f76e8704772bd8e32eb4d7bb835", "user": { "username": "anon_2wipg0symxwmm4i1" }, "share_id": "30a09d61", "host": "192.168.32.8", "client_settings": { "allow_kasm_audio": false, "idle_disconnect": 20, "lock_sharing_video_mode": true, "allow_persistent_profile": false, "allow_kasm_clipboard_down": false, "allow_kasm_microphone": false, "allow_kasm_downloads": false, "kasm_audio_default_on": false, "allow_point_of_presence": false, "allow_kasm_uploads": false, "allow_kasm_clipboard_up": false, "enable_webp": false, "allow_kasm_sharing": true, "allow_kasm_clipboard_seamless": false }, "kasm_id": "116f18170fdc4a1a87146164a880fb93" }, "username": "anon_2wipg0symxwmm4i1", "kasm_url": "/#/connect/join/30a09d61/583035bb58194e5183b921223badc569/c9ade890-7693-44bc-a1d4-797bbddf6771" }
Arguments
- user_id* string:
The user ID used to create the join link. If none supplied an anonymous user will be created.
- share_id string:
The share ID of the desired kasm.
* Optional
Response Format
- current_time string:
Returns the time at which the call was received in UTC.
- kasm json object:
Returns the Kasm object containing all of the current information.
- kasm_url string:
Returns the link path to the specified shared kasm. This path must be appended to the current kasm server address. It is in the form of /#/connect/join/<share_id>/<user_id>/<session_token>
Direct the user’s browser to this url to access the Kasm session. This link should not be re-used for different users.
- session_token string:
Returns the token created for the user used in authorization of the Kasm.
- username string:
Returns the username of the specified or newly created user.
- user_id string:
Returns the user ID of the specified or newly created user.
Get Kasms¶
Retrieve a list of live sessions.
-
POST
/api/public/get_kasms
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}" }
Example response:
{ "current_time": "2020-11-12 13:45:33.253299", "kasms": [ { "expiration_date": "2020-11-12 14:28:40.446756", "container_ip": "192.168.32.9", "server": { "port": 443, "hostname": "proxy", "zone_name": "default", "provider": "hardware" }, "user": { "username": "anon_2wipg0symxwmm4i1" }, "start_date": "2020-11-12 13:28:40.446737", "point_of_presence": null, "token": "43ab8a765e1e42fe9ee637783731f577", "image_id": "e12266d0f5f44bf5afb80b6c41fabce2", "view_only_token": "6f756f76e8704772bd8e32eb4d7bb835", "cores": 1.0, "hostname": "proxy", "kasm_id": "116f18170fdc4a1a87146164a880fb93", "port_map": { "audio": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/audio" }, "vnc": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/vnc" }, "audio_input": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/audio_input" }, "uploads": { "port": 443, "path": "desktop/116f1817-0fdc-4a1a-8714-6164a880fb93/uploads" } }, "image": { "image_id": "e12266d0f5f44bf5afb80b6c41fabce2", "name": "kasmweb/chrome:1.8.0", "image_src": "img/thumbnails/chrome.png", "friendly_name": "Kasm Chrome" }, "is_persistent_profile": false, "memory": 1768000000, "operational_status": "running", "client_settings": { "allow_kasm_audio": false, "idle_disconnect": 20, "lock_sharing_video_mode": true, "allow_persistent_profile": false, "allow_kasm_clipboard_down": false, "allow_kasm_microphone": false, "allow_kasm_downloads": false, "kasm_audio_default_on": false, "allow_point_of_presence": false, "allow_kasm_uploads": false, "allow_kasm_clipboard_up": false, "enable_webp": false, "allow_kasm_sharing": true, "allow_kasm_clipboard_seamless": false }, "container_id": "dbc977159f79e55c466fec52a5b4954b7c26ba88e51937d85a5077d7c79e92e5", "port": 443, "keepalive_date": "2020-11-12 13:28:40.446754", "user_id": "583035bb58194e5183b921223badc569", "persistent_profile_mode": null, "share_id": "30a09d61", "host": "192.168.32.8", "server_id": "8270f8f0acfd4a34a56cc9a9cb7a67d9" } ] }
Destroy Kasm¶
Destroy kasm can be called to destroy a Kasm.
-
POST
/api/public/destroy_kasm
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}" "kasm_id": "1a85859d-9d75-45e1-a173-e720472a24f8", "user_id": "4d892bf39321494da9a159178972c147", }
Example response:
{}
Arguments
- user_id string:
The user ID used of the kasm owner.
- kasm_id string:
The ID of the kasm to be destroyed.
Response Format
If empty response is sent the Kasm was successfully deleted.
Keepalive¶
Issue a keepalive to reset the expiration time of a Kasm session. The new expiration time will be updated to reflect the keepalive_expiration Group Setting assigned to the Kasm’s associated user.
-
POST
/api/public/keepalive
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}" "kasm_id": "1a85859d-9d75-45e1-a173-e720472a24f8" }
Example response:
{ "usage_reached": false }
Arguments
- kasm_id string:
The ID of the kasm to issue the expiration update.
Response Format
The response returns a single value usage_reached. If true, the user has exceeded the quota defined be the usage_limit group setting and the expiration time was not reset.
Session Component Control¶
The developer may choose to hide the display of certain visual components that normally appear during a Kasm session. This is done by appending the following query arguments to any of the kasm_url response urls generated by the apis above.
Example
/#/connect/join/89cc8cd3/c7357f11eb4d47ad8021b5847d8415d8/070fce1f-86c6-4e05-9b10-935632acb8ce?disable_control_panel=1&disable_tips=1&disable_chat=1&disable_fixed_res=1
Query Arguments
- disable_control_panel=1
Hides the Kasm control panel that is normally used for uploads, downloads etc. Users will be unable to access this functionality.
- disable_tips=1
Stops the tips modal from showing when the user connects to a session.
- disable_chat=1
Hides the chat interface for shared sessions.
- disable_fixed_res=1
By default, shared sessions are forced into a fixed resolution and aspect ratio. When specified this will allow the shared session to operate with a dynamic resolution and aspect ratio.
Images¶
Get Images¶
Retrieve a list of available images.
-
POST
/api/public/get_images
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}" }
Example response:
{ "images": [ { "restrict_to_network": false, "memory": 768000000, "zone_name": null, "x_res": 800, "description": "Single-Application : Chrome", "image_id": "b483f0a4fb6546f79064f9b6759758cb", "persistent_profile_path": null, "friendly_name": "Kasm Chrome", "volume_mappings": {}, "restrict_to_zone": false, "docker_token": null, "persistent_profile_config": {}, "cores": 1.0, "docker_registry": "https://index.docker.io/v1/", "available": true, "run_config": { "hostname": "kasm" }, "imageAttributes": [ { "image_id": "b483f0a4fb6546f79064f9b6759758cb", "attr_id": "11cd3b92d73c4caaa84c70e75190ec25", "name": "vnc", "category": "port_map", "value": "6901/tcp" }, { "image_id": "b483f0a4fb6546f79064f9b6759758cb", "attr_id": "ec1531322190445db70d10c31766503a", "name": "audio", "category": "port_map", "value": "4901/tcp" }, { "image_id": "b483f0a4fb6546f79064f9b6759758cb", "attr_id": "3634ba1144bc4f64a932a561983c64f5", "name": "uploads", "category": "port_map", "value": "4902/tcp" } ], "docker_user": null, "restrict_to_server": false, "enabled": true, "name": "kasmweb/chrome:1.8.0", "zone_id": null, "y_res": 600, "server_id": null, "network_name": null, "exec_config": { "first_launch": { "environment": { "LAUNCH_URL": "" }, "cmd": "bash -c 'google-chrome --start-maximized \"$KASM_URL\"'" }, "go": { "cmd": "bash -c 'google-chrome --start-maximized \"$KASM_URL\"'" } }, "hash": null, "image_src": "img/thumbnails/chrome.png" } ] }
Groups¶
Add User to Group¶
Add a user to an existing group.
-
POST
/api/public/add_user_group
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user": { "user_id": "67d7c4e6-f891-4900-897f-ce5ed62fecc0" }, "target_group": { "group_id": "87fd617577984033be5bd269b4d170c6" } }
Example response:
{}
Remove User from Group¶
Remove a user from an existing group.
-
POST
/api/public/remove_user_group
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user": { "user_id": "67d7c4e6-f891-4900-897f-ce5ed62fecc0" }, "target_group": { "group_id": "87fd617577984033be5bd269b4d170c6" } }
Example response:
{}
Login¶
Get Login¶
Generate a link for the user to login to Kasm without the need to enter a username or password. Redirect the user to the provided url.
-
POST
/api/public/get_login
¶ Example request:
{ "api_key": "{{api_key}}", "api_key_secret": "{{api_key_secret}}", "target_user": { "user_id": "67d7c4e6-f891-4900-897f-ce5ed62fecc0" } }
Example response:
{ "url": "https://kasm.server/#/connect/login/dash/57e8fc1afa864ff4947460d9831f42d5/930d6a5d-082e-438a-b5cf-98ae7ca5b67c" }