The KIM-1 has 2K ROM, in two 1K maskable ROMS of the 6530-002 and 6530-003.
The 6530-002 implements a TTY interface, a keyboard interface (hence the name Keyboard Interface Monitor) and 6 7 segment LED displays.
6530-003 is an audio cassette recorder extention of the KIM monitor.

On this page binaries and source listings and assembler sources for various assemblers.

6530-002.bin 2017-05-241024 $1C00-$1FFF
6530-002 ROM
6530-003.bin 2017-05-241024 $1800-$1BFF
6530-003 ROM

– 002 Plus 003 in Papertape format

Source code listings

Listing from the User Manual appendix
Listing from the User Manual appendix in text HTML format
Listing from the User Manual appendix in text format

Assembler sources

Source in MOS Technology format
Source in Ruud Baltissen assembler format
Source in CC65 format