Space HTTP API
Space HTTP API lets you programmatically access any of the Space modules: Chats, Team Directory, Projects, Documents, Packages, and so on. For details on performing particular API requests, refer to the API Reference or use the API Playground (see below).
To quickly get started with the HTTP API, use the Space SDK.
API Playground
API Playground lets you:
Explore the Space API endpoints.
Create HTTP API requests for various tools and languages.
Run the requests on behalf of Space accounts created by you.
To open API Playground
On the main menu, click
to expand the menu then choose 
Extensions:
On the Extensions sidebar, choose API Playground:
Accessing the Space API
There are two ways of accessing the Space API: through the OAuth 2.0 protocol (recommended) or by using a personal token. Learn more
Space API clients
Almost all of the modern programming languages/frameworks support running HTTP requests and handling responses. Using the API in this way – by "manually constructing" API requests is complicated and not effective. The right way is using an API client – a set of libraries that hide the low-level complexity of making the requests.
Space provides two API clients: for Kotlin/Java and for .NET. When using a client, you work with high-level entities – classes that represent particular Space modules. The clients are a part of Space SDK. Learn more
If you need a client for some other programming language, you can create it by using the OpenAPI Specification (formerly Swagger Specification). To download the Space OpenAPI specification, open API Playground and click Download OpenAPI in the bottom left corner.