Onboard a new PSP in
days, not months
PayServ provides pre-built PSP adapters, encrypted credential vaulting, automated KYB documentation generation, and certification test execution — so you can add a new PSP to your stack in 5–14 days.
Traditional vs. PayServ Onboarding
See exactly where PayServ eliminates the manual bottlenecks in PSP onboarding.
Five steps to a live PSP integration
Select PSP Adapter
Choose your target PSP from the PayServ adapter library. Pre-built schema mappings cover all major request/response fields, error codes, and webhook events for each PSP.
- Square, Stripe, Adyen, PayPal, Fiserv
- Unified request/response schema
- Pre-mapped error codes
Credential Vault
Store sandbox and production API keys in PayServ's encrypted credential vault. Automatic key rotation, environment isolation, and audit logging included.
- AES-256 encrypted at rest
- Sandbox / production separation
- Full credential access audit log
KYB Package Generator
Auto-compile the business documentation package that PSPs require for KYB approval. Includes ISV classification declaration, PCI-DSS SAQ A evidence, and business registration references.
- ISV / aggregator classification docs
- SAQ A compliance evidence
- PSP-specific format templates
Automated Certification Test Suite
Run the PSP's required certification test cases automatically via API. PayServ executes each test, captures request/response evidence, and flags failures with root cause analysis — no manual execution required.
- 200+ pre-mapped test cases per PSP
- Auto-captured evidence per test
- Failure root cause mapping
- Re-run failed cases in isolation
Go-Live Checklist & Submission
A step-by-step go-live tracker surfaces every PSP-specific requirement before production approval. Submit your certification package directly through PayServ with all evidence pre-bundled.
- PSP-specific go-live requirements
- Pre-packaged submission bundle
- Status tracking per requirement
- Resubmission workflow on failure
Pre-built adapters for leading processors
Each adapter ships with a complete schema mapping, error code library, and certification test suite.





Ready to add your next PSP?
Configure your first adapter in minutes. No infrastructure changes required — PayServ sits as a neutral middleware layer over your existing payment stack.