Documentation
Welcome to GrailPay
Move money over ACH and screen the accounts behind it — two APIs, one platform.
Migrating to API v3 v1 and v2 are deprecated April 1, 2027 and sunset October 1, 2027. Map your endpoints and webhook events to v3.
Payments API Onboarding, transactions, payouts, refunds, bank accounts and webhooks.
Risk Intelligence API Account verification, account intelligence, transaction risk and guarantees.
Start here
Section titled “Start here” Authentication Bearer tokens, API keys, and the HTTPS requirement.
Environments Sandbox and production base URLs, and how to move between them.
Onboard a person Create the individual who will send or receive ACH transfers.
Create a transaction Move funds between a payer and a payee.
Reference and resources
Section titled “Reference and resources” Payments API reference Every endpoint in the current version, with a request builder.
Risk API reference Account and transaction screening endpoints.
Changelog What shipped, and what it means for your integration.
Platform status Live availability for the GrailPay platform.
Maintained by EkLine