1
Open Calais
15
Freeware
There is plenty of detail in the OpenCalais Web Service documentation.
10
Sybase Inc.
780
Freeware
Open Client is a programming interface allowing access to any data source.
12
Tigris.org (Open Source)
6,175
Open source
ArgoUML is the leading open source UML modeling tool.
Green Bird Software
Freeware
A small program to draw class diagrams and generate code.
1
EDrawSoft
219
Shareware
A powerful yet easy-to-use UML diagram drawing program.
Sagitech Lab
Shareware
Professional VMS software with analytics, open API, and seamless scalability.
11
GNU General Public License
31
Open source
UMLet is a free, open-source UML tool with a simple user interface.
NREL/DOE/Alliance
1
Open source
Open source plugin for Google SketchUp that extends the SketchUp API.
Waymedia Srl
Commercial
Mobitouch CUBE is an open platform and makes available an API.
BitNami
28
Open source
DreamFactory is an open-source REST API backend for mobile, web, and IoT apps.
4
Visual Paradigm International Ltd.
22
Freeware
VP-UML Community Edition (VP-UML CE) is a free UML drawing tool.
2
Pavel Hruby
Freeware
The UML stencil for Visio supports complete UML, SoaML and other UML profiles.
5
The KPD-Team
Freeware
API-Guide is an API-database with all the API-functions of API-list.
77
Metamill Software
63
Shareware
UML modeling tool with UML 2.4 support and round-trip Python, ADA, Java, C/C++...
