Licensing

Hermes is open source under the MIT License.

What You Can Do

Use Case	Allowed?
Personal, hobby and educational projects	Yes
Open source projects	Yes
Commercial products, at any company size	Yes
Internal tools	Yes
Modifying Hermes and redistributing your changes	Yes

There is no license key, no fee, no revenue threshold, and no limit on applications, seats or end users.

The one condition is the MIT License's own: include its copyright notice and license text wherever you distribute Hermes. That covers an application that bundles Hermes, where a third-party notices file is the usual place for it.

Upgrading From a Licensed Release

Earlier releases were source-available under the Elastic License 2.0 and read an optional license key at startup. Current releases contain no license check. When you upgrade:

• Remove any call to WithLicenseKey(...) on HermesBlazorAppBuilder. The method no longer exists.
• Delete the HERMES_LICENSE environment variable and the Hermes:License configuration value. Neither is read any more.

Frequently Asked Questions

Can I ship a commercial application built on Hermes?

Yes. The MIT License allows commercial use with no fee, whatever your organization's size or revenue.

Can I use Hermes in a SaaS product?

Yes. The MIT License places no restriction on how Hermes is used.

Contact

For licensing questions, including a license bought for an earlier release: support@mythetech.com