Open-source Notion MCP alternatives
Notion's MCP server is closed and run by Notion. If you would rather use a server whose source you can read, audit, and fork, every option below publishes its code. That matters when you need to vet exactly what an agent can touch in your workspace, or when you want to patch behaviour yourself instead of filing a support ticket.
These are the open-source servers people compare against Notion, ordered roughly by how widely they are used. Most run locally, a couple also offer a hosted endpoint, and all of them let you pin the version you trust.
The 8 best open-source alternatives
When the conversations you need never reach a document, the community Slack server reads history, DMs, and search without a workspace bot, and its source is open to read.
Set up Slack →Doist's official Todoist server is open source and tightly focused on tasks: create, find, update, and complete tasks, projects, labels, and reminders, with a repo you can read end to end.
Set up Todoist →Schema-first and fully open, the maintained Airtable server lets an agent inspect a base, then read, search, and write records, fields, and comments. Reading the repo before you grant write access is straightforward.
Set up Airtable →Closest to Notion's docs-as-databases feel, the open-source Coda server connects an agent to pages, tables, and rows. The source is right there to confirm what it can edit.
Set up Coda →- TrelloCommunity
For board-style tracking, the open-source Trello server covers boards, lists, cards, checklists, labels, members, and attachments, a simple and inspectable model where Notion would feel heavy.
Set up Trello → Local Markdown is the whole point of Obsidian, and its open-source server reads, searches, and edits the vault through the Local REST API plugin. You can see exactly which calls it makes and keep the files on your own disk.
Set up Obsidian →Built on Telethon and fully open source, the Telegram server reads chats, manages groups and contacts, and sends or edits messages and media. Reach for it when the workspace your agent needs is a Telegram community rather than a doc store.
Set up Telegram →Both halves of Notion answered at once: Atlassian's open-source server on GitHub covers Confluence pages and Jira issues, reading, searching, creating, and updating each. The repo shows exactly what an agent can reach across the two.
Set up Atlassian (Jira & Confluence) →
How to choose
Among the open-source options, Obsidian and Airtable are the most battle-tested for workspace data, while Coda stays closest to Notion's document-as-database feel. If your real need is reaching a chat community rather than documents, Slack and Telegram cover that ground. Whichever you choose, read the repo before you wire it into a workspace with write access.
FAQ
- Is the Notion MCP server open source?
- No. Notion runs the server itself and does not publish its source, so you authenticate over OAuth and cannot audit or modify it. Every alternative on this page ships its code publicly.
- Why choose an open-source MCP server over a hosted one?
- You can read exactly which API calls the server is able to make, pin or patch the version you run, and keep credentials on infrastructure you control. The trade-off is that you operate it yourself rather than relying on the vendor to keep it running.