Kotai
Keep work and personal coding separate in Cursor.
Route personal and work projects through separate OpenRouter setups.
Download for macOS
(version 0.2.9)
Free and no in-app purchases.
One IDE, two OpenRouter setups
What it does:
Every request from your agent uses a special model prefix that Kotai uses to route the request to your personal setup or your work setup.
Data path and privacy:
Prompt data travels through ngrok, then on to OpenRouter.
Why "Kotai"?
Kotai (交代) is the Japanese word for alternation or changeover.
Requirements:
The macOS app requires an Apple Silicon Mac with macOS 14 or newer, a free ngrok account with ngrok set up, and two OpenRouter API keys: one personal and one for work.
Limitations:
Kotai and ngrok must remain running. The ngrok free-plan request and bandwidth limits apply. Anthropic-native clients are not supported.
Changelog
0.2.9
September 9, 2026- Fixed a few display issues with the menu bar item.
0.2.8
September 9, 2026- Fixed a Dock display issue.
0.2.7
September 9, 2026- Fixed a few bugs related to the new app icon.
0.2.6
September 9, 2026- Added a new app icon.
0.2.5
September 9, 2026- Fixed more bugs with usage stats and diagnostics.
0.2.4
September 9, 2026- Fixed bugs in the usage stats window.
0.2.3
September 9, 2026- Fixed an upgrade bug and some user interface glitches.
0.2.2
September 9, 2026- Fixed a bug where upgrading from older builds would clear API keys.
0.2.1
September 8, 2026- Fixed a bug in the Settings window.
0.2.0
September 8, 2026- Ask for admin keys for somewhat easier setup and much better usage statistics.
0.1.16
September 8, 2026- Made Kotai more Mac-like.
0.1.15
September 8, 2026- Fixed a minor UI bug.
0.1.14
September 7, 2026- Fixed the size of the icon in the Dock.
0.1.13
September 7, 2026- Improve the Diagnostics window and gave Kotai a dedicated Dock icon.
0.1.12
September 7, 2026- Fixed a minor UI issue in the About window.
0.1.11
September 7, 2026- Made some UI fixes and tweaks.
0.1.10
September 7, 2026- Made some minor UI tweaks.
0.1.9
September 7, 2026- Fixed more issues when upgrading and improved the UX in the settings screen and in the setup wizard.
0.1.8
September 7, 2026- Made more fixes to the upgrade path.
0.1.7
September 7, 2026- Fixed problems where saved keys, etc. would be lost during upgrades.
0.1.6
September 7, 2026- Improved setup wizard and settings UX.
0.1.5
September 7, 2026- Made UX improvements in Kotai settings.
0.1.4
September 6, 2026- Made a few more setup wizard fixes.
0.1.3
September 6, 2026- Fixed some bugs in the setup wizard.
0.1.2
September 6, 2026- Use a static ngrok URL.
0.1.1
September 6, 2026- Moved the website and update feed to kotai.jp.
0.1.0
September 6, 2026- Added simultaneous prefix-based routing to personal and work OpenRouter accounts.
- Added support for Cursor and other OpenAI-compatible clients through a stable ngrok URL.
- Stored service credentials in Keychain and protected the proxy with a separate token.