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# Design APIs with collections

> Learn how to use Postman. Search the docs and support resources!

## Docs

- [Design your APIs with Postman Collections](https://learning.postman.com/docs/design-apis/collections/overview.md)
- [Add types to parameters and headers with an API collection](https://learning.postman.com/docs/design-apis/collections/add-properties-to-parameters-and-headers.md)
- [Add types to body data with an API collection](https://learning.postman.com/docs/design-apis/collections/add-properties-to-body-data.md)
- [View types and documentation for an API collection](https://learning.postman.com/docs/design-apis/collections/view-properties-and-documentation.md)
- [Generate an API specification from your collection](https://learning.postman.com/docs/design-apis/collections/generate-specifications.md)