| `name` | String. The user-friendly name of this instance. | Yes |
| `url` | URL. The user-friendly URL of this instance. | Yes |
| `version` | String. The Fervor version this software uses. | Yes |
| `implementation_name` | String. The name of the softwre this instance is running. | Yes |
| `implementation_version` | String. The version of software this instance is running. | Yes |
| `extensions` | [Extensions object](#extensions). | No |
### Extensions
The extensions object provides additional information about extension to the Fervor API this instance provides.
There should be a field in the object for each supported extension. The key should be a unique identifier for the extension (reverse domain name style is recommended) and the value should be a URL for the extension specification or API documentation.
See the [Extensions](./extensions.md) page for more information.