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License

Copyright 2026 ostk.ai. All rights reserved.

Open Source Licensing Model

The ostk project is committed to open source. We divide our codebase into two primary licensing tiers to balance developer integration freedom with copyleft safeguards:

GNU Affero General Public License v3.0 (AGPL-3.0)

Applies to the core runtime executables, daemons, and system CLI packages:

  • ostk (the central daemon and CLI orchestration system)
  • ostk-cache (the L1.5 optimizing prompt wire proxy)
  • ostk-recall (the local code indexing and memory MCP server)

Any modifications or integrations run as network services must make their source code available under the same terms.

MIT License

Applies to client libraries and integration hooks:

  • libostk (userspace programmatic IPC client library)
  • Official IDE integrations, web hooks, and runner plugins

Permissive licensing allows you to link or embed these clients in commercial or proprietary tools without restriction.

Verification & Integrity

All official release binaries are cryptographically signed with our release GPG key. You can audit and verify the integrity of any downloaded package locally using ostk bail verify.

No Warranty

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY.

Questions: [email protected]