Collattice
Collattice is a free, open-source kanban board for small teams where people and AI agents collaborate.
What Collattice is
Collattice is a free, open-source kanban board for small teams where people and AI agents collaborate. It runs as a single executable with an embedded SQLite database, without requiring a database server, containers, or a cloud account. A built-in MCP server exposes board operations to agents over Streamable HTTP, and a REST API supports managing boards, cards, users, and webhooks. Server-Sent Events send board changes to connected clients in real time. Board features include drag-and-drop cards and lanes, Markdown descriptions and comments, cross-board search, labels, archiving, and dark and light themes. Outbound webhooks can send selected events to registered URLs, with optional signing secrets and delivery logs. Browser uploads support files up to 5 MB, while API uploads support files up to 50 MB. The application generates an administrator authentication key on first run, and users receive keys for access. Webhook delivery to private and internal network addresses is blocked by default; loopback, link-local, and cloud metadata addresses remain blocked even if the private-network option is enabled. The repository identifies the license as MIT.
Good
- Runs as one executable with embedded SQLite.
- Includes MCP and REST APIs.
- Streams board changes to connected clients.
- Supports Markdown, search, labels, and archiving.
- Free and open source under the MIT license.
Watch out
- Browser uploads are limited to 5 MB.
- API uploads are limited to 50 MB.
- Users authenticate with access keys.
Who it suits
Collattice suits small teams that want people and AI agents to work on a shared board. Its self-hosted setup may appeal to teams that do not want a database server, containers, or cloud account.
Verdict
Collattice offers a self-hosted board with tools for both people and agents. Note the different browser and API upload limits when planning file sharing.
Plans and prices
From Collattice's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Self-hosted · single executable · embedded SQLite |
The facts
Each one read from Collattice's own pages, with the date it was checked.
What it does
- Agent support
- A built-in MCP server exposes board operations to agents over Streamable HTTP.checked 4 Oct 2026
- Attachments
- Browser uploads support files up to 5 MB, while API uploads support files up to 50 MB.checked 4 Oct 2026
- Audience
- The project describes itself as designed for small teams where humans and AI agents collaborate on a shared board.checked 4 Oct 2026
- Authentication
- The application generates an administrator auth key on first run, and users receive keys for authentication.checked 4 Oct 2026
- Board features
- The board supports drag-and-drop cards and lanes, Markdown descriptions and comments, cross-board search, labels, archiving, and dark and light themes.checked 4 Oct 2026
- Deployment
- It runs as a single executable with an embedded SQLite database and does not require a database server, containers, or a cloud account.checked 4 Oct 2026
- Integrations
- Outbound webhooks can send selected board events to registered URLs, with optional signing secrets and delivery logs.checked 4 Oct 2026
- License
- The repository identifies its license as MIT.checked 4 Oct 2026
- Live updates
- Server-Sent Events stream board changes to connected clients in real time.checked 4 Oct 2026
- Purpose
- Collattice is a self-hosted kanban board built for human-agent collaboration.checked 4 Oct 2026
- REST API
- The project documents a REST API alongside its MCP tools for managing boards, cards, users, and webhooks.checked 4 Oct 2026
- Security
- Webhook delivery to private and internal network addresses is blocked by default, with loopback, link-local, and cloud metadata addresses remaining blocked even when the private-network option is enabled.checked 4 Oct 2026
Where it runs
- Platforms
- Release downloads are listed for Windows 64-bit, macOS Apple Silicon and Intel, and Linux 64-bit and ARM64.checked 4 Oct 2026