# GrailPay

## Docs

- [Welcome](https://docs.grailpay.com/home/welcome.md)
- [Payments Platform Overview](https://docs.grailpay.com/docs/technical/overview.md): This content is designed as a launching pad to integration, and provides key details relevant to processing ACH with GrailPay and using our Risk Intelligence tools. This context should be helpful to developers and implementation teams before jumping into our technical integration guides and OpenAPI…
- [Authentication](https://docs.grailpay.com/docs/technical/authentication.md)
- [Idempotency](https://docs.grailpay.com/docs/technical/idempotency.md)
- [Sandbox](https://docs.grailpay.com/docs/technical/sandbox-environment.md)
- [Key Terms](https://docs.grailpay.com/docs/resources/key-terms.md)
- [Compliance Status Overview](https://docs.grailpay.com/docs/resources/compliance-status-overview.md)
- [Return Codes](https://docs.grailpay.com/docs/resources/return-codes.md)
- [ACH Processing Windows & Settlement Timing](https://docs.grailpay.com/docs/resources/ach-processing-windows.md)
- [Transaction States & Events](https://docs.grailpay.com/docs/resources/transaction-states.md)
- [Transaction Queues](https://docs.grailpay.com/docs/resources/transaction-queues.md)
- [Scenarios: Direct & Batch Payouts](https://docs.grailpay.com/docs/resources/scenarios-direct-and-batch-payouts.md)
- [Onboard a Person](https://docs.grailpay.com/docs/technical/users/onboard-a-person.md)
- [Onboard a Business](https://docs.grailpay.com/docs/technical/users/onboard-a-business.md)
- [Onboard a Merchant](https://docs.grailpay.com/docs/technical/users/onboard-a-merchant.md)
- [Manage Users](https://docs.grailpay.com/docs/technical/users/manage-users.md)
- [Create a Transaction](https://docs.grailpay.com/docs/technical/transactions/create-a-transaction.md)
- [Manage Transactions](https://docs.grailpay.com/docs/technical/transactions/manage-transactions.md)
- [Manage Payouts](https://docs.grailpay.com/docs/technical/payouts/manage-payouts.md)
- [Create a Refund](https://docs.grailpay.com/docs/technical/refunds/create-a-refund.md)
- [Manage Refunds](https://docs.grailpay.com/docs/technical/refunds/manage-refunds.md)
- [Add Bank Account](https://docs.grailpay.com/docs/technical/bank-accounts/add-bank-account.md)
- [Manage Bank Accounts](https://docs.grailpay.com/docs/technical/bank-accounts/manage-bank-accounts.md)
- [Validate Bank Accounts](https://docs.grailpay.com/docs/technical/bank-accounts/validate-bank-accounts.md)
- [Manage Webhooks](https://docs.grailpay.com/docs/technical/webhooks/manage-webhooks.md)
- [Webhook Events](https://docs.grailpay.com/docs/technical/webhooks/events.md)
- [Get Merchant Billing Summary](https://docs.grailpay.com/docs/technical/billing/get-merchant-billing-summary.md)
- [Bank Link SDK v3.0](https://docs.grailpay.com/docs/technical/bank-link-sdk/overview.md)
- [Bank Link SDK Upgrade Guide](https://docs.grailpay.com/docs/technical/bank-link-sdk/upgrade-guide.md)
- [Overview](https://docs.grailpay.com/docs/risk/overview.md): An overview of our Risk Intelligence API, including its purpose and key features.
- [Authentication](https://docs.grailpay.com/docs/risk/authentication.md): How to authenticate with the Risk Intelligence API using JWT-based credentials.
- [Account Intelligence](https://docs.grailpay.com/docs/risk/bank-accounts/account-intelligence.md)
- [Transaction Intelligence: Accounts Receivable](https://docs.grailpay.com/docs/risk/transactions/transaction-intelligence.md)
- [Payments API Changelog](https://docs.grailpay.com/changelog/payments-api-changelog.md)
- [Customer Portal Changelog](https://docs.grailpay.com/changelog/customer-portal-changelog.md)
- [Risk Intelligence API Changelog](https://docs.grailpay.com/changelog/risk-api-changelog.md)

## OpenAPI Specs

- [openapi](https://docs.grailpay.com/api-reference/openapi.json)

## Optional

- [Knowledge Base / FAQs](https://grailpay-knowledge-base.help.usepylon.com/)
- [Payments API OpenAPI Docs](https://api.grailpay.com/api/documentation#/)
- [Risk API OpenAPI Docs](https://risk-api.grailpay.com/spec/#/)
- [GrailPay Status Page](https://status.grailpay.com/)