# `license` | Field Name | Type | Description | | --- | --- | --- | | name | string | **REQUIRED.** The license name used for the API. | | identifier | string | An [SPDX](https://spdx.dev/spdx-specification-21-web-version/#h.jxpfx0ykyb60) license expression for the API. The identifier field is mutually exclusive of the url field. | | url | string | The URL pointing to the contact information. | | email | string | The email address of the contact person or organization. | ## Visuals ### `license` example The following shows a `license` example. ```yaml info: title: Example version: '' description: | # My API description in Markdown This is a sample of an info description. license: name: MIT url: https://opensource.org/licenses/MIT ``` ![info license](/assets/license-1.14f49a64a3729373597883809ae24f7b89b6c458281788c0d5adcba8cf5ea108.6f948c6e.png) ## Types - `License` (found in the [Info object](/learn/openapi/openapi-visual-reference/info)) ```js const License: NodeType = { properties: { name: { type: 'string' }, url: { type: 'string' }, }, required: ['name'], }; ```