06 · Developer Platform
Build on SwitchX in an afternoon.
Documented REST APIs, idempotency keys, signed webhooks and a sandbox that never moves real money.
REST APIsOpenAPI referenceIdempotencySigned webhooksSandbox scenariosError catalogue
What it does
Sandbox scenarios
Force success, decline, timeout or partner error to test every path.
Idempotent by design
Retries replay the stored response; conflicting reuse is rejected.
Signed webhooks
HMAC-SHA256 signatures with timestamp and replay protection.
Clear errors
Typed codes and correlation IDs; no stack traces leave the API.
How it works
STEP 1
Get access
STEP 2
Call sandbox
STEP 3
Receive webhook
STEP 4
Reconcile
STEP 5
Go live*
* Going live needs authorized partner connections and regulatory approvals.
Technical detail
