> This page is for Developer.

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

## API and Theme Updates for March 27, 2020

**API**

* Payments API rate limit is 50 payment requests per 4 seconds

* Clarification added to [Process Payment API](https://github.com/bigcommerce/dev-docs/pull/358) `payment_method_id` description

**Theme**

* More customer helpers added to Handlebars reference

**Developer Blog**

[Meet the Falcon Progressive Web App Platform For BigCommerce](https://medium.com/bigcommerce-developer-blog/meet-the-falcon-progressive-web-app-platform-for-bigcommerce-7202dd3f1c29)