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Register an OAuth client

Resend does not yet have a dashboard screen for creating OAuth clients, so you register one by calling the OAuth registration endpoint, as described in the Building a Resend OAuth client guide. Registration returns the Client ID and Client Secret you enter in StackOne.

1

Register your OAuth client

Send a registration request to POST https://api.resend.com/oauth/register. Register a confidential client so that Resend issues a Client Secret, and include StackOne’s callback URL as a redirect URI.

  • Set client_name to StackOne Integration.
  • Add StackOne’s callback URL to redirect_uris: https://api.stackone.com/connect/oauth2/resend/callback
  • Include both authorization_code and refresh_token in grant_types. The refresh_token grant is required so StackOne can refresh the access token once it expires.
  • Set token_endpoint_auth_method to client_secret_post, because StackOne sends the client credentials in the request body when exchanging and refreshing tokens. Resend still issues a Client Secret for the confidential client.
  • The Client Secret is returned only once at registration and cannot be retrieved later — store it securely for use later.
2

Choose the scopes

Enables actions: Add Batch Suppressions, Add Suppression, Cancel Email, Create API Key, Create Broadcast, Create Contact, Create Domain, Create Segment, Delete API Key, Delete Broadcast, Delete Contact, Delete Domain, Delete Segment, List API Keys, List Broadcasts, List Contacts, List Domains, List Emails, List Segments, List Suppressions, Remove Batch Suppressions, Remove Suppression, Retrieve Broadcast, Retrieve Contact, Retrieve Domain, Retrieve Email, Retrieve Segment, Retrieve Suppression, Send Batch Emails, Send Broadcast, Send Email, Update API Key, Update Broadcast, Update Contact, Update Domain, Update Email, Update Segment, Verify Domain

Request the scopes this integration needs. Use full access for all API routes, or sending access to only send email.

3

Enter the credentials in StackOne

Paste the returned client_id into the Client ID field and the client_secret into the Client Secret field in the StackOne Connector profile. In the Scopes field, enter the space-separated scopes you registered, such as full_access.

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Creating the StackOne Connector Profile

To create the Connector Profile in StackOne for Resend:
1

Navigate to Connector Profiles

Login to StackOne and navigate to Connector Profiles
2

Create New Connector Profile

  • Click + Connector Profile
  • Search for and select Resend
  • Select Type as OAuth 2.0
  • Fill out the fields using details retrieved from your provider:
    • Client ID
    • Client Secret
    • Scopes (Optional)
  • (Optional) Select Actions to be enabled for this Connector Profile
  • Click Create profile
Congratulations! The new Connector Profile will now show up in your project ready to be used. You can now continue to Link Accounts for Resend.