> For the complete documentation index, see [llms.txt](https://doc.open-tx.org/opentx-lua-reference-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.open-tx.org/opentx-lua-reference-guide/part_ii_-_opentx_lua_api_programming_guide.md).

# Part II - OpenTX Lua API Programming Guide

This section provides more specifics on the OpenTX Lua implementation. Here you will find syntax rules for interface tables and functions. Also included is a table showing which of the available Lua libraries are accessible to OpenTx scripts.