Integrations & domains
API keys, SMTP notifications, custom domains, guest portals.
API keys
Settings → API keys — create and revoke keys for the host SaaS Integration API (server-to-server).
Use keys to:
- Upsert companies and end-users
- Create tickets on behalf of customers
- Mint MagicLinks into the portal
Treat keys like passwords; revoke compromised keys immediately. The raw key is only shown once at creation.
Full host integration walkthrough: Host SaaS API.

Notifications (SMTP)
Settings → Notifications — configure the tenant SMTP used for customer-facing email. Passwords are encrypted at rest; they are never returned to the client after save.
Staff-side mail may use platform SMTP; customer-facing mail stays on the tenant’s brand when configured.
Domains
Settings → Domains — custom portal and API hostnames for white-label sessions (cookies stay same-site when both are set correctly).
Guest portals
Settings → Guest portals — optional narrow-access portals (slug per guest surface) for people who should not go through the full host MagicLink path. Configure carefully; guest surfaces are still visibility-scoped.
Details: Guest portals.
MCP is not under Settings
Connect AI agents under Account → MCP, not under API keys. See MCP for agents.