Developers
Go live in hours, not months.
One REST API for collections, payouts, wallets, virtual accounts and bills. Signed webhooks, a complete sandbox, and documentation with worked examples for every endpoint.
Start here
Everything you need to integrate.
Integration path
From account to live payments.
- 1
Create an account
Sign up and grab your sandbox keys. No onboarding required to start.
- 2
Build in sandbox
Run the full flow with test cards and accounts, including failures.
- 3
Verify webhooks
Confirm your listener validates signatures and handles retries.
- 4
Switch keys
Complete onboarding, swap to live keys, and start taking real money.
Ready to build on infrastructure you can grow with?
From your first transaction to your next million, SaySwitch gives you the infrastructure to accept payments, move money, and grow with confidence.