> For the complete documentation index, see [llms.txt](https://adidas.gitbook.io/api-guidelines/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://adidas.gitbook.io/api-guidelines/rest-api-guidelines/core-principles/design-platform.md).

# API Design Platform

1. [SwaggerHub](https://design.api.3stripes.io/) is the primary platform supporting [API first approach](/api-guidelines/general-guidelines/api-first.md). SwaggerHub **MUST** be used during API Design.
2. Every API description **MUST** be stored in [SwaggerHub](https://design.api.3stripes.io/) under the adidas team.
3. SwaggerHub **MUST** be the **single source of truth** to learn about existing APIs within the organization.

> NOTE: SwaggerHub supports API-first approach in multiple ways:\
> For example, it validates API description for correctness and automatically generates API documentation to drive the discussion between stakeholders. (No more emails with API description flying between stakeholders)