> For the complete documentation index, see [llms.txt](https://sophon-edge.gitbook.io/project/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sophon-edge.gitbook.io/project/sdk-apis/overview.md).

# Headers

BMRuntime APIs are declared in three header files: 

1\) “bmruntime.h” : this is a BMRuntime common header file, declares common BMRuntime definitions and APIs. This header file is also included by “bmruntime\_bmnet.h” and “bmruntime\_bmkernel.h” 

2\) “bmruntime\_bmnet.h” : this header file contains definitions and APIs used if programming by BMNet.

3\) “bmruntime\_bmkernel.h”: this header file contains definitions and APIs used if programming by BMKernel.