How to create or find your client ID with the Dropbox Sign API

Updated Sep 17, 2025

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If you have an approved embedded signing flow or are interested in testing embedded signing, embedded templates, or embedded requesting, you will need an API key and a client_id.

The API key is a unique identifier used to authenticate a user with our API, and the client_id signifies a specific API app within Dropbox Sign. Learn how to find or create your API key.

Non-embedded signing can also use a client_id, but this doesn’t need to be approved in an app approval process. Learn more about embedded vs. non-embedded signing.

How to create a client_id

Log in to sign.dropbox.com.
Click your avatar (profile picture or initials) in the upper right.
Click Settings.
Click the API tab.
Click Create app next to API apps.
Enter the required information for your new app.
Click CREATE APPLICATION.

You’ll see the client_id in the API apps section.

How to find your client_id

Log in to sign.dropbox.com.
Click your avatar (profile picture or initials) in the upper right.
Click Settings.
Click the API tab.
Scroll down to API apps.
Copy and paste the client_id you need.

Notes:

If you’re implementing an embedded or Dropbox Sign OAuth workflow, you’ll need to review our app approval documentation and submit a request using the relevant form at the bottom of this page.
- If an API app isn’t approved, you can only use the API app in test_mode for embedded or OAuth workflows.
If you’re implementing a non-embedded workflow, you don’t need to submit an approval request. You must be on a paid Dropbox Sign API Essentials plan or higher, and then remove test_mode from your API request.
If you use the client_id of an API app assigned to a callback URL, we’ll report callback events associated with that API app.
- You can implement the callback URL set at the API app level even if it’s in an unapproved state.

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