This document describes a community-based anonymous counseling, testing and linkage center for men who have sex with men (MSM) in Portugal called CheckpointLX. It provides free, anonymous and confidential HIV, Syphilis, and HCV rapid tests. The number of HIV rapid tests administered has increased each year from 2011 to 2014. Most tests are for MSM, with a positivity rate of around 5%. The majority of those with reactive tests are referred to treatment protocols. The center also participates in research studies and international networking initiatives. It aims to improve testing practices and referrals through community outreach. The document outlines several current and planned projects, including partner notification, acute HIV detection, and PrEP acceptability research