> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.bigcommerce.com/developer/docs/storefront/guides/customer-authentication/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.bigcommerce.com/_mcp/server.

# Customer Authentication

> Build amazing commerce solutions powered by the BigCommerce platform

## Docs

- [Customer Login API](https://docs.bigcommerce.com/developer/docs/storefront/guides/customer-authentication/customer-login.md)
- [Current Customer](https://docs.bigcommerce.com/developer/docs/storefront/guides/customer-authentication/current-customer.md)
- [Passwordless Login](https://docs.bigcommerce.com/developer/docs/storefront/guides/customer-authentication/passwordless.md)