# Exsited API & SDK ## Guides ### Get started - [Introduction](https://exsited.mintlify.app/introduction.md): The Exsited v4 REST API and the seven SDKs that call it. - [Installation](https://exsited.mintlify.app/installation.md): Install the SDK for your language from its package registry or from its public GitHub repository. - [Authentication](https://exsited.mintlify.app/authentication.md): Give the client your API credentials once; it gets, caches and renews the access token. - [API reference (967 pages)](https://exsited.mintlify.app/_llms/api-reference.txt): Documentation for API reference. ## OpenAPI Specs - [openapi](/api-reference/openapi.json) > The links below point to documentation indexes. Follow each `/_llms/` index recursively until you reach documentation pages. ## Indexes - [API reference (967 pages)](https://exsited.mintlify.app/_llms/api-reference.txt): Documentation for API reference. - [API reference / Sales (178 pages)](https://exsited.mintlify.app/_llms/api-reference/sales.txt): Documentation for API reference / Sales. - [API reference / Items and fulfilment (169 pages)](https://exsited.mintlify.app/_llms/api-reference/items-and-fulfilment.txt): Documentation for API reference / Items and fulfilment. - [API reference / Settings (168 pages)](https://exsited.mintlify.app/_llms/api-reference/settings.txt): Documentation for API reference / Settings. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.