obs-websocket/docs/generated/protocol.md

obs-websocket 4.2.0 protocol reference

This is the reference for obs-websocket 4.2.0. See the list below for older versions.

• 4.1.0 protocol reference
• 4.0.0 protocol reference

General Introduction

Messages are exchanged between the client and the server as JSON objects. This protocol is based on the original OBS Remote protocol created by Bill Hamilton, with new commands specific to OBS Studio.

Authentication

OBSWebSocket uses SHA256 to transmit credentials.

A request for GetAuthRequired returns two elements:

• A challenge: a random string that will be used to generate the auth response.
• A salt: applied to the password when generating the auth response.

To generate the answer to the auth challenge, follow this procedure:

• Concatenate the user declared password with the salt sent by the server (in this order: password + server salt).
• Generate a binary SHA256 hash of the result and encode the resulting SHA256 binary hash to base64, known as a base64 secret.
• Concatenate the base64 secret with the challenge sent by the server (in this order: base64 secret + server challenge).
• Generate a binary SHA256 hash of the result and encode it to base64.
• Voilà, this last base64 string is the auth response. You may now use it to authenticate to the server with the Authenticate request.

Pseudo Code Example:

password = "supersecretpassword"
challenge = "ztTBnnuqrqaKDzRM3xcVdbYm"
salt = "PZVbYpvAnZut2SS6JNJytDm9"

secret_string = password + salt
secret_hash = binary_sha256(secret_string)
secret = base64_encode(secret_hash)

auth_response_string = secret + challenge
auth_response_hash = binary_sha256(auth_response_string)
auth_response = base64_encode(auth_response_hash)

Table of Contents

• Events
  • Scenes
    • SwitchScenes
    • ScenesChanged
    • SceneCollectionChanged
    • SceneCollectionListChanged
  • Transitions
    • SwitchTransition
    • TransitionListChanged
    • TransitionDurationChanged
    • TransitionBegin
  • Profiles
    • ProfileChanged
    • ProfileListChanged
  • Streaming
    • StreamStarting
    • StreamStarted
    • StreamStopping
    • StreamStopped
    • StreamStatus
  • Recording
    • RecordingStarting
    • RecordingStarted
    • RecordingStopping
    • RecordingStopped
  • Replay Buffer
    • ReplayStarting
    • ReplayStarted
    • ReplayStopping
    • ReplayStopped
  • Other
    • Exiting
  • Sources
    • SourceOrderChanged
    • SceneItemAdded
    • SceneItemRemoved
    • SceneItemVisibilityChanged
  • Studio Mode
    • PreviewSceneChanged
    • StudioModeSwitched
• Requests
  • General
    • GetVersion
    • GetAuthRequired
    • Authenticate
  • Scenes
    • SetCurrentScene
    • GetCurrentScene
    • GetSceneList
  • Sources
    • SetSourceRender
    • SetVolume
    • GetVolume
    • ToggleMute
    • SetMute
    • GetMute
    • SetSyncOffset
    • GetSyncOffset
    • SetSceneItemPosition
    • SetSceneItemTransform
    • SetSceneItemCrop
    • GetTextGDIPlusProperties
    • SetTextGDIPlusProperties
    • GetBrowserSourceProperties
    • SetBrowserSourceProperties
    • ResetSceneItem
  • Streaming
    • GetStreamingStatus
    • StartStopStreaming
    • StartStreaming
    • StopStreaming
  • Recording
    • StartStopRecording
    • StartRecording
    • StopRecording
    • SetRecordingFolder
    • GetRecordingFolder
  • Replay Buffer
    • StartStopReplayBuffer
    • StartReplayBuffer
    • StopReplayBuffer
    • SaveReplayBuffer
  • Transitions
    • GetTransitionList
    • GetCurrentTransition
    • SetCurrentTransition
    • SetTransitionDuration
    • GetTransitionDuration
  • Scene Collections
    • SetCurrentSceneCollection
    • GetCurrentSceneCollection
  • Profiles
    • SetCurrentProfile
    • GetCurrentProfile
    • ListProfiles
  • Settings
    • SetStreamingSettings
    • GetStreamSettings
    • SaveStreamSettings
  • Studio Mode
    • GetStudioModeStatus
    • GetPreviewScene
    • SetPreviewScene
    • TransitionToProgram
    • EnableStudioMode
    • DisableStudioMode
    • ToggleStudioMode
    • GetSpecialSources

Events

Events are broadcast by the server to each connected client when a recognized action occurs within OBS.

An event message will contain at least the following base fields:

• update-type String: the type of event.
• stream-timecode String (optional): time elapsed between now and stream start (only present if OBS Studio is streaming).
• rec-timecode String (optional): time elapsed between now and recording start (only present if OBS Studio is recording).

Timecodes are sent using the format: HH:MM:SS.mmm

Additional fields may be present in the event message depending on the event type.

Scenes

SwitchScenes

• Added in v0.3

Indicates a scene change.

Response Items:

Name	Type	Description
scene-name	String	The new scene.
sources	Array	List of sources in the new scene.

---

ScenesChanged

• Added in v0.3

The scene list has been modified. Scenes have been added, removed, or renamed.

Response Items:

No additional response items.

---

SceneCollectionChanged

• Added in v4.0.0

Triggered when switching to another scene collection or when renaming the current scene collection.

Response Items:

No additional response items.

---

SceneCollectionListChanged

• Added in v4.0.0

Triggered when a scene collection is created, added, renamed, or removed.

Response Items:

No additional response items.

---

Transitions

SwitchTransition

• Added in v4.0.0

The active transition has been changed.

Response Items:

Name	Type	Description
transition-name	String	The name of the new active transition.

---

TransitionListChanged

• Added in v4.0.0

The list of available transitions has been modified. Transitions have been added, removed, or renamed.

Response Items:

No additional response items.

---

TransitionDurationChanged

• Added in v4.0.0

The active transition duration has been changed.

Response Items:

Name	Type	Description
new-duration	int	New transition duration.

---

TransitionBegin

• Added in v4.0.0

A transition (other than "cut") has begun.

Response Items:

Name	Type	Description
name	String	Transition name.
duration	int	Transition duration (in milliseconds).

---

Profiles

ProfileChanged

• Added in v4.0.0

Triggered when switching to another profile or when renaming the current profile.

Response Items:

No additional response items.

---

ProfileListChanged

• Added in v4.0.0

Triggered when a profile is created, added, renamed, or removed.

Response Items:

No additional response items.

---

Streaming

StreamStarting

• Added in v0.3

A request to start streaming has been issued.

Response Items:

Name	Type	Description
preview-only	boolean	Always false (retrocompatibility).

---

StreamStarted

• Added in v0.3

Streaming started successfully.

Response Items:

No additional response items.

---

StreamStopping

• Added in v0.3

A request to stop streaming has been issued.

Response Items:

Name	Type	Description
preview-only	boolean	Always false (retrocompatibility).

---

StreamStopped

• Added in v0.3

Streaming stopped successfully.

Response Items:

No additional response items.

---

StreamStatus

• Added in v0.3

Emit every 2 seconds.

Response Items:

Name	Type	Description
streaming	boolean	Current streaming state.
recording	boolean	Current recording state.
preview-only	boolean	Always false (retrocompatibility).
bytes-per-sec	int	Amount of data per second (in bytes) transmitted by the stream encoder.
kbits-per-sec	int	Amount of data per second (in kilobits) transmitted by the stream encoder.
strain	double	Percentage of dropped frames.
total-stream-time	int	Total time (in seconds) since the stream started.
num-total-frames	int	Total number of frames transmitted since the stream started.
num-dropped-frames	int	Number of frames dropped by the encoder since the stream started.
fps	double	Current framerate.

---

Recording

RecordingStarting

• Added in v0.3

A request to start recording has been issued.

Response Items:

No additional response items.

---

RecordingStarted

• Added in v0.3

Recording started successfully.

Response Items:

No additional response items.

---

RecordingStopping

• Added in v0.3

A request to stop recording has been issued.

Response Items:

No additional response items.

---

RecordingStopped

• Added in v0.3

Recording stopped successfully.

Response Items:

No additional response items.

---

Replay Buffer

ReplayStarting

• Added in v4.2.0

A request to start the replay buffer has been issued.

Response Items:

No additional response items.

---

ReplayStarted

• Added in v4.2.0

Replay Buffer started successfully

Response Items:

No additional response items.

---

ReplayStopping

• Added in v4.2.0

A request to start the replay buffer has been issued.

Response Items:

No additional response items.

---

ReplayStopped

• Added in v4.2.0

Replay Buffer stopped successfully

Response Items:

No additional response items.

---

Other

Exiting

• Added in v0.3

OBS is exiting.

Response Items:

No additional response items.

---

Sources

SourceOrderChanged

• Added in v4.0.0

Scene items have been reordered.

Response Items:

Name	Type	Description
scene-name	String	Name of the scene where items have been reordered.

---

SceneItemAdded

• Added in v4.0.0

An item has been added to the current scene.

Response Items:

Name	Type	Description
scene-name	String	Name of the scene.
item-name	String	Name of the item added to the scene.

---

SceneItemRemoved

• Added in v4.0.0

An item has been removed from the current scene.

Response Items:

Name	Type	Description
scene-name	String	Name of the scene.
item-name	String	Name of the item removed from the scene.

---

SceneItemVisibilityChanged

• Added in v4.0.0

An item's visibility has been toggled.

Response Items:

Name	Type	Description
scene-name	String	Name of the scene.
item-name	String	Name of the item in the scene.
item-visible	boolean	New visibility state of the item.

---

Studio Mode

PreviewSceneChanged

• Added in v4.1.0

The selected preview scene has changed (only available in Studio Mode).

Response Items:

Name	Type	Description
scene-name	String	Name of the scene being previewed.
sources	Source|Array	List of sources composing the scene. Same specification as GetCurrentScene.

---

StudioModeSwitched

• Added in v4.1.0

Studio Mode has been enabled or disabled.

Response Items:

Name	Type	Description
new-state	boolean	The new enabled state of Studio Mode.

---

Requests

Requests are sent by the client and require at least the following two fields:

• request-type String: String name of the request type.
• message-id String: Client defined identifier for the message, will be echoed in the response.

Once a request is sent, the server will return a JSON response with at least the following fields:

• message-id String: The client defined identifier specified in the request.
• status String: Response status, will be one of the following: ok, error
• error String: An error message accompanying an error status.

Additional information may be required/returned depending on the request type. See below for more information.

General

GetVersion

• Added in v0.3

Returns the latest version of the plugin and the API.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
version	double	OBSRemote compatible API version. Fixed to 1.1 for retrocompatibility.
obs-websocket-version	String	obs-websocket plugin version.
obs-studio-version	String	OBS Studio program version.
available-requests	String|Array	List of available request types.

---

GetAuthRequired

• Added in v0.3

Tells the client if authentication is required. If so, returns authentication parameters challenge and salt (see "Authentication" for more information).

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
authRequired	boolean	Indicates whether authentication is required.
challenge	String (optional)
salt	String (optional)

---

Authenticate

• Added in v0.3

Attempt to authenticate the client to the server.

Request Fields:

Name	Type	Description
auth	String	Response to the auth challenge (see "Authentication" for more information).

Response Items:

No additional response items.

---

Scenes

SetCurrentScene

• Added in v0.3

Switch to the specified scene.

Request Fields:

Name	Type	Description
scene-name	String	Name of the scene to switch to.

Response Items:

No additional response items.

---

GetCurrentScene

• Added in v0.3

Get the current scene's name and source items.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
name	String	Name of the currently active scene.
sources	Source|Array	Ordered list of the current scene's source items.

---

GetSceneList

• Added in v0.3

Get a list of scenes in the currently active profile.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
current-scene	String	Name of the currently active scene.
scenes	Scene|Array	Ordered list of the current profile's scenes (See [GetCurrentScene](#getcurrentscene) for more information).

---

Sources

SetSourceRender

• Added in v0.3

Show or hide a specified source item in a specified scene.

Request Fields:

Name	Type	Description
source	String	Name of the source in the specified scene.
render	boolean	Desired visibility.
scene-name	String (optional)	Name of the scene where the source resides. Defaults to the currently active scene.

Response Items:

No additional response items.

---

SetVolume

• Added in v4.0.0

Set the volume of the specified source.

Request Fields:

Name	Type	Description
source	String	Name of the source.
volume	double	Desired volume. Must be between 0.0 and 1.0.

Response Items:

No additional response items.

---

GetVolume

• Added in v4.0.0

Get the volume of the specified source.

Request Fields:

Name	Type	Description
source	String	Name of the source.

Response Items:

Name	Type	Description
name	String	Name of the source.
volume	double	Volume of the source. Between 0.0 and 1.0.
mute	boolean	Indicates whether the source is muted.

---

ToggleMute

• Added in v4.0.0

Inverts the mute status of a specified source.

Request Fields:

Name	Type	Description
source	String	The name of the source.

Response Items:

No additional response items.

---

SetMute

• Added in v4.0.0

Sets the mute status of a specified source.

Request Fields:

Name	Type	Description
source	String	The name of the source.
mute	boolean	Desired mute status.

Response Items:

No additional response items.

---

GetMute

• Added in v4.0.0

Get the mute status of a specified source.

Request Fields:

Name	Type	Description
source	String	The name of the source.

Response Items:

Name	Type	Description
name	String	The name of the source.
muted	boolean	Mute status of the source.

---

SetSyncOffset

• Added in v4.2.0

Set the audio sync offset of a specified source.

Request Fields:

Name	Type	Description
source	String	The name of the source.
offset	int	The desired audio sync offset (in nanoseconds).

Response Items:

No additional response items.

---

GetSyncOffset

• Added in v4.2.0

Get the audio sync offset of a specified source.

Request Fields:

Name	Type	Description
source	String	The name of the source.

Response Items:

Name	Type	Description
name	String	The name of the source.
offset	int	The audio sync offset (in nanoseconds).

---

SetSceneItemPosition

• Added in v4.0.0

Sets the coordinates of a specified source item.

Request Fields:

Name	Type	Description
scene-name	String (optional)	The name of the scene that the source item belongs to. Defaults to the current scene.
item	String	The name of the source item.
x	double	X coordinate.
y	double	Y coordinate.

Response Items:

No additional response items.

---

SetSceneItemTransform

• Added in v4.0.0

Set the transform of the specified source item.

Request Fields:

Name	Type	Description
scene-name	String (optional)	The name of the scene that the source item belongs to. Defaults to the current scene.
item	String	The name of the source item.
x-scale	double	Width scale factor.
y-scale	double	Height scale factor.
rotation	double	Source item rotation (in degrees).

Response Items:

No additional response items.

---

SetSceneItemCrop

• Added in v4.1.0

Sets the crop coordinates of the specified source item.

Request Fields:

Name	Type	Description
scene-name	String (optional)	the name of the scene that the source item belongs to. Defaults to the current scene.
item	String	The name of the source.
top	int	Pixel position of the top of the source item.
bottom	int	Pixel position of the bottom of the source item.
left	int	Pixel position of the left of the source item.
right	int	Pixel position of the right of the source item.

Response Items:

No additional response items.

---

GetTextGDIPlusProperties

• Added in v4.1.0

Get the current properties of a Text GDI Plus source.

Request Fields:

Name	Type	Description
scene-name	String (optional)	Name of the scene to retrieve. Defaults to the current scene.
source	String	Name of the source.

Response Items:

Name	Type	Description
align	String	Text Alignment ("left", "center", "right").
bk-color	int	Background color.
bk-opacity	int	Background opacity (0-100).
chatlog	boolean	Chat log.
chatlog_lines	int	Chat log lines.
color	int	Text color.
extents	boolean	Extents wrap.
extents_cx	int	Extents cx.
extents_cy	int	Extents cy.
file	String	File path name.
read_from_file	boolean	Read text from the specified file.
font	Object	Holds data for the font. Ex: "font": { "face": "Arial", "flags": 0, "size": 150, "style": "" }
font.face	String	Font face.
font.flags	int	Font text styling flag. Bold=1, Italic=2, Bold Italic=3, Underline=5, Strikeout=8
font.size	int	Font text size.
font.style	String	Font Style (unknown function).
gradient	boolean	Gradient enabled.
gradient_color	int	Gradient color.
gradient_dir	float	Gradient direction.
gradient_opacity	int	Gradient opacity (0-100).
outline	boolean	Outline.
outline_color	int	Outline color.
outline_size	int	Outline size.
outline_opacity	int	Outline opacity (0-100).
text	String	Text content to be displayed.
valign	String	Text vertical alignment ("top", "center", "bottom").
vertical	boolean	Vertical text enabled.
render	boolean	Visibility of the scene item.

---

SetTextGDIPlusProperties

• Added in v4.1.0

Get the current properties of a Text GDI Plus source.

Request Fields:

Name	Type	Description
scene-name	String (optional)	Name of the scene to retrieve. Defaults to the current scene.
source	String	Name of the source.
align	String (optional)	Text Alignment ("left", "center", "right").
bk-color	int (optional)	Background color.
bk-opacity	int (optional)	Background opacity (0-100).
chatlog	boolean (optional)	Chat log.
chatlog_lines	int (optional)	Chat log lines.
color	int (optional)	Text color.
extents	boolean (optional)	Extents wrap.
extents_cx	int (optional)	Extents cx.
extents_cy	int (optional)	Extents cy.
file	String (optional)	File path name.
read_from_file	boolean (optional)	Read text from the specified file.
font	Object (optional)	Holds data for the font. Ex: "font": { "face": "Arial", "flags": 0, "size": 150, "style": "" }
font.face	String (optional)	Font face.
font.flags	int (optional)	Font text styling flag. Bold=1, Italic=2, Bold Italic=3, Underline=5, Strikeout=8
font.size	int (optional)	Font text size.
font.style	String (optional)	Font Style (unknown function).
gradient	boolean (optional)	Gradient enabled.
gradient_color	int (optional)	Gradient color.
gradient_dir	float (optional)	Gradient direction.
gradient_opacity	int (optional)	Gradient opacity (0-100).
outline	boolean (optional)	Outline.
outline_color	int (optional)	Outline color.
outline_size	int (optional)	Outline size.
outline_opacity	int (optional)	Outline opacity (0-100).
text	String (optional)	Text content to be displayed.
valign	String (optional)	Text vertical alignment ("top", "center", "bottom").
vertical	boolean (optional)	Vertical text enabled.
render	boolean (optional)	Visibility of the scene item.

Response Items:

No additional response items.

---

GetBrowserSourceProperties

• Added in v4.1.0

Get current properties for a Browser Source.

Request Fields:

Name	Type	Description
scene-name	String (optional)	Name of the scene that the source belongs to. Defaults to the current scene.
source	String	Name of the source.

Response Items:

Name	Type	Description
is_local_file	boolean	Indicates that a local file is in use.
url	String	Url or file path.
css	String	CSS to inject.
width	int	Width.
height	int	Height.
fps	int	Framerate.
shutdown	boolean	Indicates whether the source should be shutdown when not visible.
render	boolean (optional)	Visibility of the scene item.

---

SetBrowserSourceProperties

• Added in v4.1.0

Set current properties for a Browser Source.

Request Fields:

Name	Type	Description
scene-name	String (optional)	Name of the scene that the source belongs to. Defaults to the current scene.
source	String	Name of the source.
is_local_file	boolean (optional)	Indicates that a local file is in use.
url	String (optional)	Url or file path.
css	String (optional)	CSS to inject.
width	int (optional)	Width.
height	int (optional)	Height.
fps	int (optional)	Framerate.
shutdown	boolean (optional)	Indicates whether the source should be shutdown when not visible.
render	boolean (optional)	Visibility of the scene item.

Response Items:

No additional response items.

---

ResetSceneItem

• Added in v4.2.0

Reset a source item.

Request Fields:

Name	Type	Description
scene-name	String (optional)	Name of the scene the source belogns to. Defaults to the current scene.
item	String	Name of the source item.

Response Items:

No additional response items.

---

Streaming

GetStreamingStatus

• Added in v0.3

Get current streaming and recording status.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
streaming	boolean	Current streaming status.
recording	boolean	Current recording status.
stream-timecode	String (optional)	Time elapsed since streaming started (only present if currently streaming).
rec-timecode	String (optional)	Time elapsed since recording started (only present if currently recording).
preview-only	boolean	Always false. Retrocompatibility with OBSRemote.

---

StartStopStreaming

• Added in v0.3

Toggle streaming on or off.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

StartStreaming

• Added in v4.1.0

Start streaming. Will return an error if streaming is already active.

Request Fields:

Name	Type	Description
stream	Object (optional)	Special stream configuration.
type	String (optional)	If specified ensures the type of stream matches the given type (usually 'rtmp_custom' or 'rtmp_common'). If the currently configured stream type does not match the given stream type, all settings must be specified in the settings object or an error will occur when starting the stream.
metadata	Object (optional)	Adds the given object parameters as encoded query string parameters to the 'key' of the RTMP stream. Used to pass data to the RTMP service about the streaming. May be any String, Numeric, or Boolean field.
settings	Object (optional)	Settings for the stream.
settings.server	String (optional)	The publish URL.
settings.key	String (optional)	The publish key of the stream.
settings.use-auth	boolean (optional)	Indicates whether authentication should be used when connecting to the streaming server.
settings.username	String (optional)	If authentication is enabled, the username for the streaming server. Ignored if use-auth is not set to true.
settings.password	String (optional)	If authentication is enabled, the password for the streaming server. Ignored if use-auth is not set to true.

Response Items:

No additional response items.

---

StopStreaming

• Added in v4.1.0

Stop streaming. Will return an error if streaming is not active.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

Recording

StartStopRecording

• Added in v0.3

Toggle recording on or off.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

StartRecording

• Added in v4.1.0

Start recording. Will return an error if recording is already active.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

StopRecording

• Added in v4.1.0

Stop recording. Will return an error if recording is not active.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

SetRecordingFolder

• Added in v4.1.0

Change the current recording folder.

Request Fields:

Name	Type	Description
rec-folder	Stsring	Path of the recording folder.

Response Items:

No additional response items.

---

GetRecordingFolder

• Added in v4.1.0

Get the path of the current recording folder.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
rec-folder	String	Path of the recording folder.

---

Replay Buffer

StartStopReplayBuffer

• Added in v4.2.0

Toggle the Replay Buffer on/off.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

StartReplayBuffer

• Added in v4.2.0

Start recording into the Replay Buffer. Will return an error if the Replay Buffer is already active or if the "Save Replay Buffer" hotkey is not set in OBS' settings. Setting this hotkey is mandatory, even when triggering saves only through obs-websocket.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

StopReplayBuffer

• Added in v4.2.0

Stop recording into the Replay Buffer. Will return an error if the Replay Buffer is not active.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

SaveReplayBuffer

• Added in v4.2.0

Save and flush the contents of the Replay Buffer to disk. This is basically the same as triggering the "Save Replay Buffer" hotkey. Will return an error if the Replay Buffer is not active.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

---

Transitions

GetTransitionList

• Added in v4.1.0

List of all transitions available in the frontend's dropdown menu.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
current-transition	String	Name of the currently active transition.
transitions	Object|Array	List of transitions.
transitions[].name	String	Name of the transition.

---

GetCurrentTransition

• Added in v0.3

Get the name of the currently selected transition in the frontend's dropdown menu.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
name	String	Name of the selected transition.
duration	int (optional)	Transition duration (in milliseconds) if supported by the transition.

---

SetCurrentTransition

• Added in v0.3

Set the active transition.

Request Fields:

Name	Type	Description
transition-name	String	The name of the transition.

Response Items:

No additional response items.

---

SetTransitionDuration

• Added in v4.0.0

Set the duration of the currently selected transition if supported.

Request Fields:

Name	Type	Description
duration	int	Desired duration of the transition (in milliseconds).

Response Items:

No additional response items.

---

GetTransitionDuration

• Added in v4.1.0

Get the duration of the currently selected transition if supported.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
transition-duration	int	Duration of the current transition (in milliseconds).

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Scene Collections

SetCurrentSceneCollection

• Added in v4.0.0

Change the active scene collection.

Request Fields:

Name	Type	Description
sc-name	String	Name of the desired scene collection.

Response Items:

No additional response items.

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GetCurrentSceneCollection

• Added in v4.0.0

Get the name of the current scene collection.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
sc-name	String	Name of the currently active scene collection.

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Profiles

SetCurrentProfile

• Added in v4.0.0

Set the currently active profile.

Request Fields:

Name	Type	Description
profile-name	String	Name of the desired profile.

Response Items:

No additional response items.

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GetCurrentProfile

• Added in v4.0.0

Get the name of the current profile.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
profile-name	String	Name of the currently active profile.

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ListProfiles

• Added in v4.0.0

Get a list of available profiles.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
profiles	Object|Array	List of available profiles.

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Settings

SetStreamingSettings

• Added in v4.1.0

Sets one or more attributes of the current streaming server settings. Any options not passed will remain unchanged. Returns the updated settings in response. If 'type' is different than the current streaming service type, all settings are required. Returns the full settings of the stream (the same as GetStreamSettings).

Request Fields:

Name	Type	Description
type	String	The type of streaming service configuration, usually rtmp_custom or rtmp_common.
settings	Object	The actual settings of the stream.
settings.server	String (optional)	The publish URL.
settings.key	String (optional)	The publish key.
settings.use-auth	boolean (optional)	Indicates whether authentication should be used when connecting to the streaming server.
settings.username	String (optional)	The username for the streaming service.
settings.password	String (optional)	The password for the streaming service.
save	boolean	Persist the settings to disk.

Response Items:

No additional response items.

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GetStreamSettings

• Added in v4.1.0

Get the current streaming server settings.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
type	String	The type of streaming service configuration. Usually 'rtmp_custom' or 'rtmp_common'.
settings	Object	Setings of the stream.
settings.server	String	The publish URL.
settings.key	String	The publish key of the stream.
settings.use-auth	boolean	Indicates whether audentication should be used when connecting to the streaming server.
settings.username	String	The username to use when accessing the streaming server. Only present if use-auth is true.
settings.password	String	The password to use when accessing the streaming server. Only present if use-auth is true.

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SaveStreamSettings

• Added in v4.1.0

Save the current streaming server settings to disk.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

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Studio Mode

GetStudioModeStatus

• Added in v4.1.0

Indicates if Studio Mode is currently enabled.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
studio-mode	boolean	Indicates if Studio Mode is enabled.

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GetPreviewScene

• Added in v4.1.0

Get the name of the currently previewed scene and its list of sources. Will return an error if Studio Mode is not enabled.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
name	String	The name of the active preview scene.
sources	Source|Array

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SetPreviewScene

• Added in v4.1.0

Set the active preview scene. Will return an error if Studio Mode is not enabled.

Request Fields:

Name	Type	Description
scene-name	String	The name of the scene to preview.

Response Items:

No additional response items.

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TransitionToProgram

• Added in v4.1.0

Transitions the currently previewed scene to the main output. Will return an error if Studio Mode is not enabled.

Request Fields:

Name	Type	Description
with-transition	Object (optional)	Change the active transition before switching scenes. Defaults to the active transition.
with-transition.name	String	Name of the transition.
with-transition.duration	int (optional)	Transition duration (in milliseconds).

Response Items:

No additional response items.

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EnableStudioMode

• Added in v4.1.0

Enables Studio Mode.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

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DisableStudioMode

• Added in v4.1.0

Disables Studio Mode.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

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ToggleStudioMode

• Added in v4.1.0

Toggles Studio Mode.

Request Fields:

No specified parameters.

Response Items:

No additional response items.

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GetSpecialSources

• Added in v4.1.0

Get configured special sources like Desktop Audio and Mic/Aux sources.

Request Fields:

No specified parameters.

Response Items:

Name	Type	Description
desktop-1	String (optional)	Name of the first Desktop Audio capture source.
desktop-2	String (optional)	Name of the second Desktop Audio capture source.
mic-1	String (optional)	Name of the first Mic/Aux input source.
mic-2	String (optional)	Name of the second Mic/Aux input source.
mic-3	String (optional)	NAme of the third Mic/Aux input source.

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