The intent of our licensing is to allow you to use OneTrueError, through the client libraries, without purchasing a license or using a GPL compatible license. If you, however, would like to create derived work or distribute OneTrueError Server, you need to get a commercial license or use a GPL compatible OSS license for your own software.
Simply put: Using or integrating with the server in any other way than through the official client libraries requires you to comply with AGPL or to buy a commercial license.
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The client libraries are licensed under the Apache 2.0 license.
The server is licensed under the GNU Affero General Public License 3.0.