To connect Dex to DocuSign eSignature, you create an app with an Integration Key, add an RSA keypair for JWT Grant, and note the impersonated User ID and API Account ID.
Steps
1In DocuSign, go to Settings → Apps and Keys.
2Click Add App and Integration Key, enter an app name, and click Create App.
3Under Authentication, choose the JWT / Service Integration type and click Generate RSA, then copy and store the private key immediately.
4Add a Redirect URI under Additional settings, and copy the Integration Key (client ID) from General Info.
5On the Apps and Keys page, copy your User ID (API Username GUID) and your API Account ID.
6Grant one-time application consent for the JWT scopes (signature impersonation) for the user Dex will impersonate.
Paste into Dex
The connection form in the Dex app store asks for these values:
Integration Key
OAuth client ID.
RSA private key
Shown only once when generated — unrecoverable if not saved.
User ID
GUID of the user to impersonate; found on Apps and Keys.
