Abstract Background A strong primary health care (PHC) is associated to better overall health system results. Brazil has good results in PHC in the last decades, integrating 260,000 community health workers (CHW) in 43,000 family health teams (FHT), assisting 90 million people and delivering 500 million health activities yearly, such as home visits, consultations, colposcopy, etc. We address the challenges of incorporating CHA-produced data to official electronic health records, automate its analysis and promote information use by FHT to plan activities & prioritize individuals considering social determinants of health, clinical data and treatment plans. Our study developed a general data protection regulation (GDPR) compliant information system to improve community health agents and family health teams coordination of care in order to address this challenge. Methods The intervention was developed using UX techniques and combines Apps and Web dashboards, issuing digital alerts to the FHT and municipal health manager, regarding individual health status and pending care for each covered individual. The research used the “Monitoring and Evaluating Digital Health Interventions” toolbox by World Health Organization (WHO), and GDPR compliance was attained by terms of use acceptance, pseudonymisation and anonymization procedures. Results Stage 1 and Stage 2 Maturity tests with doctors, nurses and CHA showed good feasibility, usability and user satisfaction of the solution. UX and Qualitative Assessment are reported separately. Conclusions Results so far point that the solution is viable and acknowledged as useful by health professionals. Stage 3 (Pilot) will run in September 2020 in two different cities to test efficacy and health system adherence in real world setting. Digital health interventions are powerful tool to improve health care system performance, particularly in Primary Health Care. Key messages Digital Health Intervention are viable in Primary Care as long as they reduce health profesisonal burden and increase service quality. Brazil is a promising environment for Digital Health. Careful planning, development and deployment are essential in the process.