SkillCheck Pro license
One Pro key is for one person. They can use it on every machine they work on and in their CI (continuous integration) pipelines. The Free checks stay free for everyone.
Applies to SkillCheck Pro v3.35.0 and later · effective 26-10-2026
The short version
What one Pro key covers, and what it does not. The full text below is what counts.
| What you want to do | Allowed |
|---|---|
| Run the Free checks without a key | Yes, free of charge |
| Use Pro on your laptop, your desktop and any other machine you work on | Yes, with one key |
| Put your key in your own CI pipeline or self-hosted server | Yes, with one key |
| Let a team of five use Pro | Yes, with five keys |
| Share your key or the Pro download with someone else | No |
| Remove or work around the license check | No |
Full text
This is the LICENSE file in every Pro download. The file also gives a contact address for questions.
SkillCheck Pro License
Copyright (c) 2025-2026 Olga Safonova. All rights reserved.
This license covers the SkillCheck binaries (skillcheck, skillcheck-mcp, skillcheck-server), their source code and documentation (the "Software"). The free SkillCheck skill published at github.com/olgasafonova/SkillCheck-Free is a separate work under its own MIT license and is not affected.
1. Use without a key. You may run the Software without a license key. It then runs the Free checks only. That use is free of charge.
2. Use with a key. A license key bought through getskillcheck.com lets one named person run the Pro checks, on any number of their own machines, for the term stated at purchase. An organization needs one key for each person who uses the Pro checks. A key stored in an organization's CI pipeline or self-hosted server is covered as long as the organization holds a key for each person who runs Pro checks there.
3. Restrictions. You may not:
a. copy, publish, share, rent, sell or otherwise distribute the Software or a license key to anyone else;
b. remove, disable or work around the license check, or distribute a version of the Software that does;
c. reverse engineer, decompile or disassemble the Software, except to the extent applicable law expressly allows it despite this restriction.
Running the Software in your own CI pipelines and on your own machines is use, not distribution.
4. Third-party components. The Software includes open-source components. They are listed, with their licenses, in THIRD_PARTY_NOTICES.txt. Those licenses govern those components, and nothing here restricts your rights under them.
5. Termination. This license ends automatically if you break it. When it ends, you must stop using the Software and delete your copies.
6. No warranty. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
7. Limitation of liability. To the extent the law allows, the author's total liability arising from the Software is limited to the amount you paid for it in the twelve months before the claim. The author is not liable for indirect or consequential loss, including lost profits or data. Nothing in this license limits liability that cannot be limited by law, or any rights you have as a consumer that cannot be waived.
8. Governing law. This license is governed by the laws of Denmark.
Earlier versions and other software
Copies you already have keep the terms they shipped with.
SkillCheck Pro v3.34.0 and earlier shipped under the MIT license. v3.35.0 ships the same terms as this page.
The Free skill in SkillCheck-Free is open source under the MIT license.
Every Pro download includes THIRD_PARTY_NOTICES.txt, which lists the open-source components built into the binaries and their licenses.
Run the checks on your own skill.
The free check runs in your browser. Pro adds security, filler text, accessibility and agent readiness.