# GrailPay > Developer documentation for GrailPay: the Payments API for processing ACH payments — onboarding, transactions, payouts, refunds, bank accounts and webhooks — and the Risk Intelligence API for screening accounts and transactions. ## Documentation Sets - [Abridged documentation](https://docs.grailpay.com/llms-small.txt): a compact version of the documentation for GrailPay, with non-essential content removed - [Complete documentation](https://docs.grailpay.com/llms-full.txt): the full documentation for GrailPay ## Notes - The complete documentation includes all content from the official documentation - The content is automatically generated from the same source as the official documentation ## Optional - [Knowledge Base / FAQs](https://grailpay-knowledge-base.help.usepylon.com/): FAQs and support articles - [GrailPay Status Page](https://status.grailpay.com/): Current system status and incident history