MCP Hangar Is Now Fully MIT

Everything in mcp-hangar is now MIT, effective v1.2.2.

Why we changed

The shift to a single permissive license maximizes adoption and simplifies the legal landscape for contributors and users alike. MCP Hangar started with a dual-license model, but this added legal complexity that did not match the commercial returns.

The previous “5 servers / no hosted-embedded” carve-out generated more uncertainty and friction than revenue. Moving to MIT removes these barriers and allows the community to build without restriction.

What changes for users

All features are now unconditionally available under the MIT license.

• Environment variables: The MCP_LICENSE_KEY environment variable is no longer read. Existing deployments can safely drop this variable.
• Python importers: The LicenseTier enum has been removed. Downstream Python importers should update their code to remove references to this enum.
• Codebase consolidation: The enterprise/ directory has been absorbed into src/mcp_hangar/. All features previously in the enterprise directory are now part of the main codebase under the MIT license.
• Contribution process: CLA.md has been deleted. Contributions now flow inbound and outbound under the same MIT terms.

What does NOT change

• Previous versions: Already-published v1.x artifacts remain under their original license terms. This change applies starting with v1.2.2.
• Features: All existing features continue to work as expected.

Next steps

For more details on the transition and instructions for updating your deployments, refer to the following resources:

• v1.2.2 GitHub release
• Upgrade guide
• GitHub discussions