| Countly | Open source web and mobile analytics platform with real-time tracking and event monitoring | No | ✗ | ? | |
| Creative Commons Catalog | Search and explore openly licensed and public domain works using Creative Commons API | OAuth | ✓ | ✓ | |
| Datamuse | Word-finding and related terms query engine for developers | No | ✓ | ? | |
| Drupal.org | Access Drupal.org public data and project information | No | ✓ | ? | |
| Evil Insult Generator | Generate humorous and 'evil' insults through a free API | No | ✓ | ✓ | |
| GitHub Contribution Chart Generator | Generate an image visualization of your GitHub contributions calendar | No | ✓ | ✓ | |
| GitHub ReadMe Stats | Dynamically generate GitHub profile statistics cards for your README | No | ✓ | ✓ | |
| Metabase | Open source business intelligence and analytics platform for data visualization and sharing | No | ✓ | ✓ | |
| Shields | Generate clean and consistent badges (SVG/PNG) for open source projects | No | ✓ | ? | |