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Operação Serenata de Amor

  1. Non-tech crash course into Operação Serenata de Amor
  2. Tech crash course into Operação Serenata de Amor
  3. Contributing with code and tech skills
  4. Supporting
  5. Update
  6. Acknowledgments

Non-tech crash course into Operação Serenata de Amor


Serenata de Amor is an open project using artificial intelligence for social control of public administration.


We are a group of people who believes in power to the people motto. We are also part of the Data Science for Civic Innovation Programme from Open Knowledge Brasil.

Among founders and long-term members, we can list a group of eight people – plus numerous contributors from the open source and open knowledge communities: Tatiana Balachova, Felipe Cabral, Eduardo Cuducos, Irio Musskopf, Bruno Pazzim, Ana Schwendler, Jessica Temporal, Yasodara Córdova and Pedro Vilanova.


Similar to organizations like Google, Facebook, and Netflix, we use technology to track government spendings and make open data accessible for everyone. We started looking into data from the Chamber of Deputies (Brazilian lower house) but we expanded to the Federal Senate (Brazilian upper house) and to municipalities.


Irio had the main ideas for the project in early 2016. For a few months, he experimented and gathered people around the project. September, 2016 marks the launching of our first crowd funding. Since then, we have been creating open source technological products and tools, as well as high quality content on civic tech on our Facebook and Medium.


We have no non-virtual headquarters, but we work remotely everyday. Most of our ideas are crafted to work in any country that offers open data, but our main implementations focus in Brazil.


Empowering citizens with data is important: people talk about smart cities, surveillance and privacy. We prefer to focus on smart citizens, accountability and open knowledge.

Tech crash course into Operação Serenata de Amor


Serenata de Amor develops open source tools to make it easy for people to use open data. The focus is to gather relevant insights and share them in an accessible interface. Through this interface, we invite citizens to dialogue with politicians, state and government about public spendings.


Serenata's main role is played by Rosie: she is an artificial intelligence who analyzes Brazilian congresspeople expenses while they are in office. Rosie can find suspicious spendings and engage citizens in the discussion about these findings. She's on Twitter.

To allow people to visualize and make sense of data Rosie generates, we have created Jarbas. On this website, users can browse congresspeople expenses and get details about each of the suspicions. It is the starting point to validate a suspicion.


We have two main repositories on GitHub. This is the main repo and hosts Rosie and Jarbas. In addition, we have the toolbox - a pip installable package. Yet there are experimental notebooks maintained by the community and our static webpage.


Despite all these players acting together, the core part of the job is ran manually from time to time. The only part that is always online is Jarbas – freely serving a wide range of information about public expenditure 24/7.

Roughly once a month, we manually run Rosie and update Jarbas. A few times per year, we upload versioned datasets accessible via the toolbox – but we encourage you to use the toolbox to generate fresh datasets whenever you need.


Jarbas is running in Digital Ocean droplets, and deployed using the Docker Cloud architecture.


The answer to most technical why questions is because that is what we had in the past and enabled us to deliver fast. We acknowledge that this is not the best stack ever, but it has brought us here.

Contributing with code and tech skills

Make sure you have read the Tech crash course on this page. Next, check out our contributing guide.



Operation Serenata de Amor expanded into new projects. Because of this, Rosie, Jarbas and the infrastructure in general are receiving updates less frequently. If you have experience and want to help us resolve bugs faster or propose improvements, join our Discord and let's talk about the project! On the other hand, if you are looking for an active community to collaborate with, we invite you to discover the Querido Diário project.

Finally, if you want to know more details about Serenata's current situation, you can consult this text (in Portuguese) available on


Open Knowledge Brasil Digital Ocean