# API Reference

Complete API reference for all Column endpoints, organized by resource type.

- [**Entity**](/api/entity) — Create and manage person and business entities, link associated persons, and submit compliance evidence.
- [**Bank Account**](/api/bank-account) — Create and manage bank accounts, configure overdraft alerts, and access balance history.
- [**Account Number**](/api/account-number) — Create and manage routing and account numbers associated with bank accounts.
- [**Counterparty**](/api/counterparty) — Create and manage external counterparties, look up financial institutions, and validate IBANs.
- [**ACH Transfer**](/api/ach-transfer) — Initiate, retrieve, and manage ACH credit and debit transfers through the ACH network.
- [**Book Transfer**](/api/book-transfer) — Move funds instantly between accounts on your platform without touching external payment networks.
- [**Check Transfer**](/api/check-transfer) — Issue and deposit checks, manage stop payments, capture check images, and handle check returns.
- [**International Wire**](/api/international-wire) — Send and receive cross-border wire transfers via SWIFT, manage FX quotes, and track transfer status.
- [**Wire Transfer**](/api/wire-transfer) — Send and receive domestic wire transfers, manage drawdown requests, and handle return requests.
- [**Realtime Transfer**](/api/realtime-transfer) — Send and receive instant payments via the RTP and FedNow networks, including RFPs and return requests.
- [**Transfer**](/api/transfer) — Query transfers across all payment types from a single unified endpoint.
- [**Simulation**](/api/simulation) — Trigger simulated payment events in your sandbox environment to test integrations end-to-end.
- [**Events**](/api/events) — Retrieve platform events and browse the full list of available webhook event types.
- [**Webhooks**](/api/webhooks) — Register and manage webhook endpoints to receive real-time event notifications from Column.
- [**Lending**](/api/lending) — Create and manage loans, disbursements, payments, and loan sales across your lending programs.
- [**Reporting**](/api/reporting) — Schedule, retrieve, and download settlement reports for your platform's transaction history.