Host to Host
Direct server-to-server integration with Modem Pay
H2H connects your infrastructure directly to Modem Pay via secure HTTPS endpoints. No dashboards, no manual steps, just reliable, automated transactions for authorized partners.
Everything included
HTTPS + JSON
Standard web protocols with no custom formats. Your system sends authenticated API requests and gets clean JSON responses.
Partner-only access
H2H endpoints require explicit authorization tied to your business account. Access is controlled per partner and can be revoked instantly.
API key authentication
Every request is authenticated with your API key and secured with digital signatures to ensure only your system can communicate with ours.
Incremental scoping
Partners start with access to all H2H endpoints. Over time, access can be scoped to specific flows, payout-only, pay-in-only, or custom combinations.
Monitoring & logging
All H2H activity is logged to detect unusual behavior and ensure compliance with your terms of service.
High-volume ready
Built to handle large transaction volumes with automated workflows and guaranteed reliability for core platform integrations.
How it works
Apply for H2H access
Contact us to be onboarded as an H2H partner. Access is granted per business and requires explicit authorization from our team.
Receive your API credentials
Once approved, you get your API key and signature secret. Our team walks you through the endpoint structure and authentication flow.
Integrate & go live
Connect your server to our HTTPS endpoints, test in our sandbox environment, and go live with full monitoring from day one.