Public Repository


    ChemAxon provides a public repository at for our products and modules. It is designed for integrators and resellers but is available for any registered ChemAxon user as well. How to acquire the required credentials in order to use this repository are described below.

    Create your ChemAxon Account

    If you do not already have a ChemAxon Account, you may create it via filling the form at the page. Your e-mail address will serve as the username when setting up the repository.

    Generate your API key

    To generate your API key simply visit your settings page at Under the ‘Public Repository’ section, you will find a button to ‘Generate API Key’ or your exact key having generated one already.

    Configure your project


    First, download the public GPG key:

    wget -qO - https://<E-MAIL>:<API-KEY> | apt-key add -;

    To use the Artifactory repository to install a Debian package you need to add it to your sources.list file. You can do that using the following command:

    sudo echo 'deb https://<E-MAIL>:<API-KEY> all main' >> /etc/apt/sources.list

    Using the apt command will install the package:

    sudo apt install <PACKAGE>

    Search for other packages:

    apt search chemaxon

    Red Hat

    First, you need to add the Artifactory repository to your YUM repositories. Edit the following file with your editor of choice:

    sudo vim /etc/yum.repos.d/artifactory.repo

    And insert the following to the file:


    name=ChemAxon Artifactory




    #Optional - if you have GPG signing keys installed, use the below flags to verify the repository metadata signature:



    Install your package with the command:

    sudo yum install <PACKAGE>

    Search for other packages:

    yum search chemaxon


    First, you need to login to the repository:

    echo <API-KEY> | docker login -u <E-MAIL> --password-stdin [](

    Alternatively, you can paste the following into the ~/.docker/config.json file (in Windows%USERPROFILE%/.docker/config.json):

     "auths": {
     "[](": {
     "auth": <BASE64(<E-MAIL>:<API-KEY>)> 

    After that, you can pull the images:

    docker pull<IMAGE>:<TAG>

    Browse Docker Tags

    Though Docker itself doesn't have a convenient way to browse image tags, there are workarounds like Node Package Manager (8.0+).

    npx docker-browse tags <IMAGE> -r [](


    First, you need to store your credentials and repository in your .npmrc file:

    curl -o ~/.npmrc -u<E-MAIL>:<API-KEY> [](

    For your npm command line client to work with Artifactory, you first need to set the default npm registry with an Artifactory npm repository using the following command:

    npm config set registry [](
    Alternatively, you can paste the following into the ~/.npmrc file (in Windows %USERPROFILE%/.npmrc):

    To install the packages run:

    npm install <PACKAGE>


    If you would like to use Gradle as your build tool, you can follow these instructions to access ChemAxon’s Maven repository. Or you can use the quickstart project as an example.

    In your Gradle project, create (or edit if already exists) a file and add these contents. You can also move this file outside your project, into <user home>/.gradle directory.


    In the build.gradle file, add our Maven repository in the repositories block. For example:

    repositories {
     maven {
     url "${chemaxonRepositoryUrl}/libs-release"
     credentials {
     username = chemaxonRepositoryUser
     password = chemaxonRepositoryPassword

    After applying these settings, you can add ChemAxon modules as dependencies.

    If you had a problem with resolving the ojdbc8 Oracle JDBC driver but you do not want to use Oracle then omitting the driver solves the problem. To omit ojdbc8 add this setting to the build.gradle file:

    configurations.all {
     exclude group: '', module: 'ojdbc8'

    Quickstart Projects


    A simple, self-contained quickstart project example using Gradle:


    A simple, self-contained quickstart project example using Apache Maven:

    Top Level Modules

    To integrate a product, you only need to add its top-level module as a dependency, all required modules will be downloaded transitively (with the exception of the module naming which also needs to be added separately).

    Product Top-level module name in the repository
    Marvin marvin-app
    JChem jchem-main

    Example Projects

    JKlustor Web Example

    An open-source API usage example for JKlustor, which uses ChemAxon's Maven Repository. It is available on GitHub: