  We present the first source catalog of the Solid-state Slit Camera (SSC) of
the Monitor of All-sky X-ray Image (MAXI) mission on the International Space
Station, using the 45-month data from 2010 August to 2014 April in 0.7--7.0~keV
bands. Sources are searched for in two energy bands, 0.7--1.85~keV (soft) and
1.85--7.0~keV (hard), the limiting sensitivity of 3 and 4~mCrab are achieved
and 140 and 138 sources are detected in the soft and hard energy bands,
respectively. Combining the two energy bands, 170 sources are listed in the
MAXI/SSC catalog. All but 2 sources are identified with 22 galaxies including
AGNs, 29 cluster of galaxies, 21 supernova remnants, 75 X-ray binaries, 8
stars, 5 isolated pulsars, and 9 non-categorized objects. Comparing the
soft-band fluxes at the brightest end in our catalog with the ROSAT survey,
which was performed about 20 years ago, 10\% of the cataloged sources are found
to have changed the flux since the ROSAT era.
