Why people look for a Notion alternative
Notion is a brilliant all-in-one workspace: databases, docs, wikis, and project tracking in one place. The reasons to leave are usually the same reasons it is powerful. It is a lot of product to maintain, every team structures it differently, and if your real goal is notes your AI can read, the databases and views are weight you do not need.
The other common trigger is AI. Notion has its own AI and a Notion-specific MCP, but both are oriented around Notion AI. If you would rather bring your own assistant, you want a knowledge base whose MCP server works with any client.
Notion alternative with MCP
This is the specific thing many people are searching for: a Notion alternative with MCP that their own assistant can use. A few honest options:
- ›Hjarni ships the MCP server built in, works with Claude, ChatGPT, Cursor, and Codex, and stores plain Markdown. It is the closest "Notion but for AI memory" option.
- ›Anytype has an official MCP server you install and authenticate separately, if you want local-first and encryption.
- ›Obsidian can do MCP through community plugins, with more setup, if local files matter most.
What to look for
Three things separate a good AI knowledge base from a generic notes app: it stores plain Markdown you can export and own, it has a built-in MCP server so there is nothing to bolt on, and the same notes work with both ChatGPT and Claude rather than one assistant. Hjarni was built around those three; with Notion you get AI, but it is tied to Notion AI and the broader workspace.
Notion runs your workspace. A focused knowledge base just remembers what you know, for whichever AI you ask.
When to stay on Notion
If you rely on databases, properties and views, project management, or a company wiki, Notion is still the stronger product and switching would cost you capability. The case for moving is narrower and honest: you mostly write notes, you want them clean for AI, and you would rather not maintain a whole workspace to get there. If you do move, export your Notion pages as Markdown and import the ZIP into Hjarni.