# Polarix.io ## Docs - [Introduction to the Polarix.io API](https://apidocs.polarix.io/doc-420161.md): - [Polarix.io Interface & Branding](https://apidocs.polarix.io/doc-429148.md): ## API Docs - [Authentication](https://apidocs.polarix.io/api-5370129.md): Authenticate your account using your Polarix.io API user name and password to obtain a Polarix Authentication Token. Polarix limits the number of Authentication API calls based on the user name and the domain name used in the API call. - [Users](https://apidocs.polarix.io/api-5380559.md): Using the endpoint alone with no optional parameters will retrieve users assigned only to the Polarix.io customer in which the request is made. - [Project List](https://apidocs.polarix.io/api-5497985.md): Retrieves a list of Projects for the currently authenticated API user's customer. - [Project](https://apidocs.polarix.io/api-5497997.md): Retrieves a Project based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint - [Project Structure](https://apidocs.polarix.io/api-5497994.md): Retrieves Project structure based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint. - [Project Lexicon](https://apidocs.polarix.io/api-5498004.md): Retrieves Project lexicon based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint. - [Project Glossary](https://apidocs.polarix.io/api-5498011.md): Retrieves Project glossary based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint. - [Project Tags](https://apidocs.polarix.io/api-5498017.md): Retrieves Project tags list based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint. - [Project Items](https://apidocs.polarix.io/api-5498054.md): Retrieves Project items based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint. - [Project Abbreviations](https://apidocs.polarix.io/api-5599189.md): Retrieves Project glossary based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint. - [Project References](https://apidocs.polarix.io/api-7889002.md): Retrieves Project references based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint. - [Project History](https://apidocs.polarix.io/api-7943110.md): Retrieves Project change history based on the {project_id} path parameter. Project ID is retrieved by calling the "Project List" endpoint.