
QR Codes now available on the Google Chart API- Google Developers Blog
7/10/2008
Introduced QR code generation as a new chart type for the Google Chart API, allowing developers to embed QR codes directly into their applications and websites.
Blogs›Google›Google Chart API Limits and Performance

The Google Chart API has evolved to provide developers with more flexibility and performance for generating charts. Early efforts focused on the core functionality of the API. Subsequent developments have included lifting the limit on the number of calls, enabling developers to create more dynamic and data-intensive visualizations. This evolution aims to support a wider range of applications and improve the overall user experience by removing previous constraints.

7/10/2008
Introduced QR code generation as a new chart type for the Google Chart API, allowing developers to embed QR codes directly into their applications and websites.

3/20/2008
This post announces the removal of the limit on the number of calls to the Google Chart API, allowing for more dynamic and data-intensive chart generation and supporting a wider range of applications.

3/18/2008
This post announces the lifting of the limit on calls to the Google Chart API. Previously, there was a limit of 50,000 calls per day. This change removes that restriction, allowing for a significantly higher volume of chart generation requests. This directly addresses a performance and scalability bottleneck for developers utilizing the API.