Scale Your SaaS with
Multi-Tenant WAPI
Dynamically onboard thousands of customers and verify their domains without manual intervention.
WAPI (Web Setup APIs) allows your customers to dynamically onboard their customers without your support to add each of their domains in Simply Send . Scale your SaaS business without scaling your support team.
End Users
End Users
Total Tenant Isolation
One bad sender shouldn't ruin it for everyone else. We provide infrastructure-level isolation to ensure that high-quality senders maintain their reputation, unaffected by others.
Automated Domain Onboarding
Use WAPI to dynamically onboard and verify customer domains via DNS without any manual overhead.
Whitelabel Infrastructure
Remove all Simply Send branding. Your customers only see your platform name and their own domains.
Scoped API Keys
Generate keys that only work for specific domains or message streams.
"ownerId": "550e8400-e29b..."
"useCaseId": "tx-us-east-1",
"groupId": "dg_8x92..."
Built for Platforms
Whether you're building the next great CRM or an enterprise headless commerce engine, WAPI gives your customers the power of professional email infrastructure under their own brand.
Customer Relationship Management (CRM)
Your users expect to send outreach directly from your platform. With WAPI, you can dynamically onboard their domains, providing them with dedicated reputation and custom branding for every lead they touch.
- Automated DNS Setup for Users
- Per-Tenant Reputation Scoring
- Whitelabel Domain Verification
Multi-Vendor E-Commerce
Power order notifications for thousands of merchants simultaneously. Every merchant sends from their own domain, ensuring high deliverability and professional brand consistency across your entire marketplace.
Education & Enterprise
Support massive organizational hierarchies where each department or school requires its own verified domain. Manage parent communications and internal alerts at scale without manual DNS support tickets.
Explore Enterprise WAPI