Disclaimer: The opinions expressed by the guest blogger and those providing comments are theirs alone and do not reflect the opinions of the Sunlight Foundation or any employee thereof. Sunlight Foundation is not responsible for the accuracy of any of the information within the guest blog.

Derek Eder is a co-founder of Open City, a group of volunteers in Chicago that create apps with open data to improve citizen understanding of our government through transparency, and owner of DataMade, a civic technology and open data consultancy.

City councils shape nearly every aspect of city life, from what kind of canopy you can have on a storefront, to how much we pay in taxes, to the number of cops on the street.

Unfortunately, it is hard for citizens to keep tabs on what their city council is doing. A few years ago, if you wanted to be informed about a city council’s actions, you had to go to the clerk’s office and page through the hundreds or thousands of bills that were added or updated every month.

In recent years, many city clerks have taken a big step forward by publishing this legislation online. However, the current generation of municipal legislative information systems are mainly built to help councilmembers and clerks’ offices manage legislation. They were not built to help the public to understand what their city council is doing.

Well, like so many of our problems, now there’s an app for that: Councilmatic.

Originally built by Code for America for Philadelphia in 2011, Councilmatic lets anyone browse, search and subscribe to any piece of legislation published by a city.

Not wanting to reinvent the wheel, as often happens with civic software, we decided to customize this existing open source platform and set up Chicago Councilmatic.

Every city council is different, however, so when we set up Councilmatic for Chicago, it wasn’t just a turnkey operation. Chicago is unique in that it introduces and passes one to two thousand ordinances every month (an unusually large volume). Most of these are routine ordinances like sign permits, damaged vehicle claims, sidewalk cafe approvals and honorifics.

To help citizens sort through all of this, we customized Chicago Councilmatic to classify and tag all legislation. If something is not a routine piece of legislation (like the recent parking meter renegotiation), it is tagged as non-routine to make it easier to discover.

We also wanted to show which legislation an alderman (or the Mayor) sponsored and send email updates to subscribers whenever an alderman sponsors something new. There’s also a leaderboard based on volume of sponsored legislation shows which aldermen are the most active.

The launch of Chicago Councilmatic on the National Day of Civic Hacking has already made a splash in Chicago, but we’re not stopping there. The Councilmatic platform is now operating in two major U.S. cities — we want it to be deployed in as many as possible.

That’s why this summer, we’re partnering with Code for America’s Great American Civic Hack to make Councilmatic even easier to deploy and assist any group who wants to stand up a Councilmatic instance.

Do you want to help bring more transparency and openness to your local city council? Get in touch and we’ll make it happen, together.

Interested in writing a guest blog for Sunlight? Email us at guestblog@sunlightfoundation.com