Open Sunsama
Self-hostable daily planner with time blocking and an MCP server
What is Open Sunsama?
Open Sunsama is a daily planner modeled on Sunsama: tasks are planned on a kanban board of days, dragged onto a calendar as time blocks and worked through in a focus mode with a timer. Its code is public on GitHub under a non-commercial license and can be self-hosted with Docker. A hosted MCP server and a REST API let AI assistants such as Claude and ChatGPT read and change the plan.
Open Sunsama has a free plan. See every plan
Good for
- People who want Sunsama-style daily planning with code they can read
- Planning a day through Claude, ChatGPT or another MCP client
- Individuals who want to self-host their planner with Docker
Worth knowing
- The license is non-commercial: personal, educational and non-profit use is free, and for-profit companies need an enterprise license with no public price.
- There is no native phone app yet; on a phone it runs as a mobile web app in the browser.
- The desktop apps connect only to opensunsama.com, so a self-hosted install is used through the web app.
- Team workspaces, auto-scheduling and integrations with Linear, GitHub, Jira and Notion are unchecked roadmap items, not shipped features.
Key features
- Kanban board of days
- Tasks sit on a board with a column per day and a backlog. Each task can carry a P0 to P3 priority, a time estimate, subtasks, rich-text notes and attachments.
- Drag-and-drop time blocking
- Dragging a task onto the calendar creates a block linked to that task, and resizing the block sets its length. The calendar has day, 3-day, week and month views.
- Calendar sync
- Events from Google Calendar, Outlook and iCloud appear next to tasks and time blocks, so a day is planned around existing meetings.
- Focus mode and rollover
- Focus mode shows one task with a timer and records actual time against the estimate. Unfinished tasks roll over to the next day, and recurring tasks repeat on their own.
- MCP server for AI agents
- A hosted MCP server with 24 tools lets Claude, ChatGPT, Cursor and other MCP clients read the schedule and create or move tasks and time blocks after an OAuth sign-in.
- REST API and self-hosting
- A REST API with scoped API keys covers tasks, time blocks and ideas. The app can be run on your own server with Docker Compose, which starts PostgreSQL, Redis, the API and the web app.
Open Sunsama pricing
- Starts at
- Not published
- Free plan
- Free of charge for non-commercial use under its license: personal, educational, non-profit and non-commercial open-source use, plus evaluation. The site states no price for the hosted app.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Non-commercial use | $0 | The license provides the software free of charge for personal, educational, non-profit and non-commercial open-source use, and for evaluation. |
| Enterprise license | Custom | Required for commercial use, including for-profit companies running it in production. Requested by email; no price is published. |
Read from github.com on Oct 9, 2026. Prices change, so confirm with Open Sunsama before you buy.
Ways to pay less
- NonprofitFree for non-profit organizations
The license lists non-profit organization use among the permitted uses that are free of charge, while for-profit companies need an enterprise license.
Stated on github.com - EducationFree for educational use
Educational use is one of the permitted non-commercial uses that the license provides free of charge.
Stated on github.com
Works with
Open Sunsama alternatives
- Open Sunsama vs Sunsama
Free trial · from $17/mo
- Open Sunsama vs Akiflow
Free trial · from $19/mo
- Open Sunsama vs Motion
Free trial · from $19/mo
Common questions
Is Open Sunsama free?
Open Sunsama has a free plan. Free of charge for non-commercial use under its license: personal, educational, non-profit and non-commercial open-source use, plus evaluation. The site states no price for the hosted app.
How much does Open Sunsama cost?
Open Sunsama lists 2 plans. Non-commercial use: $0. Enterprise license: custom pricing. Prices were read from github.com on Oct 9, 2026.
What platforms does Open Sunsama work on?
Open Sunsama is available on Web, macOS, Windows and Linux.
Does Open Sunsama offer any discounts?
Open Sunsama publicly lists the following: Free for non-profit organizations; Free for educational use.
Does Open Sunsama have an Android app?
No Android app was listed when its pages were read on Oct 9, 2026. Open Sunsama is listed for Web, macOS, Windows and Linux.
Does Open Sunsama have an iPhone app?
No iPhone app was listed when its pages were read on Oct 9, 2026. Open Sunsama is listed for Web, macOS, Windows and Linux.
Is Open Sunsama open source?
Yes. Open Sunsama is open source, according to its own site. It can also be run on a server of your own.
Does Open Sunsama have an API?
Yes. Open Sunsama offers a public API, according to its own site.
What does Open Sunsama integrate with?
Open Sunsama's listing names Google Calendar, Outlook, iCloud, Claude, ChatGPT, Cursor, VS Code and Claude Code. A listing names up to eight integrations, so it may connect to more.
Does Open Sunsama have a student discount?
Free for educational use. Educational use is one of the permitted non-commercial uses that the license provides free of charge.
Who makes Open Sunsama?
Open Sunsama is made by Circo.
What are the alternatives to Open Sunsama?
The closest alternatives to Open Sunsama in our directory are Sunsama, Akiflow, Motion, Super Productivity and Will Be Done. Each one has a side-by-side comparison with Open Sunsama.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 9, 2026.