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A POST request to / sets top-level configuration options for your domain.

The request returns a domain object on success. On failure, it returns an HTTP error.

Set a domain property:

To unset any domain configuration property — in other words, to reset any property to its default value — set the property to null. For example:

Body params


Sets whether all rooms under the domain use Daily Prebuilt or the previous video chat interface.

default: false for existing customers; true for new signups

⚠️ This property will eventually be deprecated, once Daily Prebuilt is the only available interface experience.

Default: true | false (see above)

Determines whether participants enter a waiting room with a camera, mic, and browser check before joining a call in any room under this domain.

⚠️ You must be using Daily Prebuilt to use enable_prejoin_ui. You must also have signaling_impl set to "ws".

Default: true

Determines whether the network button, and the network panel it reveals on click, appears across all rooms belonging to this domain.

default: false

⚠️ You must be using Daily Prebuilt to use enable_network_ui.

Default: false

This field expects a lowercase string formatted with your transcription provider, a colon, and the API key for use of their service. (e.g. "deepgram:YOUR_API_KEY_HERE")

Supported provider fields:

When this field is configured, the startTranscription() and stopTranscription() instance methods may be used in any room by room owners.


Determines whether Daily Prebuilt displays background blur controls. When set to true, a participant can enable blur during a Daily Prebuilt call.

⚠️ This flag only applies to Daily Prebuilt. It has no effect when building custom video applications with the Daily call object.

Default: true

Whether "Powered by Daily" displays in the in-call UI.

(For meetings that open in a separate browser tab.) When a user clicks on the in-call menu bar's "leave meeting" button, the browser loads this URL. A query string that includes a parameter of the form recent_call=<domain>/<room> is appended to the URL. On mobile, you can redirect to a deep link to bring a user back into your app.

Email us at help@daily.co to turn on HIPAA. Learn more about our HIPAA compliance.

Whether to automatically start recording when an Intercom support agent joins an Intercom-created call. Please see our Intercom Messenger App page for more information.

⚠️This method is read-only; please contact us if you'd like to enable intercom call auto-recording.


The default language for the video call UI, for all calls.

If you set the language at this domain level, you can still override the setting for specific rooms in a room's configuration properties, or for a specific participant in a meeting token.

You can also set the language dynamically using the front-end library setDailyLang() method.

* Norwegian "no" and Russian "ru" are only available in the new Daily Prebuilt.

Options: "de","en","es","fi","fr","it","jp","ka","nl","no","pt","pl","ru","sv","tr","user"
Default: "en"

Sets a URL that will receive a webhook when a user joins a room.

Default: NULL

Daily calls use signaling servers to manage all of the participants in a given call session. In an SFU/server mode call, that same server will also send and receive all the audio and video from each participant. In a peer-to-peer call, each participant sends media directly to and from each other peer, but a signaling server still manages call state.

Daily runs servers in several different AWS regions to minimize latency for users around the world. The job of 'picking' a call server is handled when the first participant joins a room. Their browser connects to a call server using Amazon's Route 53 DNS resolution, which chooses a server in the region closest to them.

This isn't always optimal. For example, if one person joins in London, and then ten more people join from Cape Town, the call will still be hosted out of eu-west-2 . The majority of the participants will have higher latency to the server than if one of them had joined first and the call was being hosted in af-south-1. In cases like this, you may want to configure your domain (or a specific room) to always choose a call server in a specific AWS region.

Available regions:

  • "af-south-1" (Cape Town)
  • "ap-northeast-2" (Seoul)
  • "ap-southeast-1" (Singapore)
  • "ap-southeast-2" (Sydney)
  • "ap-south-1" (Mumbai)
  • "eu-west-2" (London)
  • "sa-east-1" (São Paulo)
  • "us-east-1" (N. Virginia)
  • "us-west-2" (Oregon)
Default: NULL