bearnotes-mcp

A tiny local MCP server that lets any local MCP client on macOS — Claude Code, Claude Desktop, Cursor, VS Code — read and edit your Bear notes: search, read, create, append, and overwrite (e.g. tick a checkbox).

No Bear API token is needed. Reads use Bear's local database (opened read-only); writes use Bear's bear://x-callback-url scheme. Neither requires a token, and nothing here ever touches the network.

Requirements

• macOS with Bear installed and opened at least once (the database only exists after Bear has run).

• uv — install with curl -LsSf https://astral.sh/uv/install.sh | sh (or brew install uv).

No Python setup, no token.

Install — Claude Code

1. Warm the cache (first run downloads ~30 packages — may take a minute; ends with selfcheck ok):

uvx bearnotes-mcp --selfcheck

2. Register — one command, at user scope so it's available in every project:

claude mcp add bear -s user -- uvx bearnotes-mcp

3. Verify:

claude mcp list        # → bear: ✔ Connected

If the very first connect times out, just retry (the cache is warm after one attempt), or start Claude once with MCP_TIMEOUT=60000 claude.

Install — Claude Desktop, Cursor, VS Code

Add an mcpServers entry. Use the full path to uvx — GUI apps don't see your shell PATH (which uvx, e.g. /opt/homebrew/bin/uvx):

{
  "mcpServers": {
    "bear": {
      "command": "/opt/homebrew/bin/uvx",
      "args": ["bearnotes-mcp"]
    }
  }
}

• Claude Desktop — Settings → Developer → Edit Config (creates ~/Library/Application Support/Claude/claude_desktop_config.json); paste, then fully quit and restart. Logs: ~/Library/Logs/Claude/mcp-server-bear.log.

• Cursor — same block in ~/.cursor/mcp.json.

• VS Code (Copilot) — .vscode/mcp.json, but the top-level key is servers (not mcpServers).

• Windsurf / Cline / Zed / LM Studio — same stdio pattern; check their docs for the exact file.

Cannot work: claude.ai in the browser, mobile apps, remote/hosted connectors, and non-Mac machines — they can't spawn a local process, and Bear lives only on your Mac.

Latest main without waiting for a release (builds from GitHub each install):

claude mcp add bear -s user -- uvx --from git+https://github.com/samcrudge/bearnotes-mcp bearnotes-mcp

Clone it to read/hack the code first:

git clone https://github.com/samcrudge/bearnotes-mcp
claude mcp add bear -s user -- uv --directory /absolute/path/to/bearnotes-mcp run bearnotes-mcp

To point at a non-default Bear database, add -e BEAR_DB=/path/to/database.sqlite to the claude mcp add command.

How it works

• Reads — Bear's local SQLite DB, opened read-only (mode=ro).

• Writes — Bear's x-callback-url scheme (create, add-text in append / replace_all mode).

The DB is never written directly (that corrupts Bear's sync). Before any full-body overwrite, the note's current text is snapshotted to ~/.bear-mcp-backups/ as a timestamped .md file.

Tools

Resources (read-only, @-mentionable): bear://notes (index of recent notes) and bear://note/{id} (a note's full text).

What this can access

Once connected, the client can read every non-trashed note (encrypted notes are refused) and create, append to, or overwrite notes. Everything runs locally with no network calls; the database is opened strictly read-only; and before any full-body overwrite the current text is backed up to ~/.bear-mcp-backups/. Tools carry MCP annotations (reads marked read-only, replace_note marked destructive) so clients can surface the right warnings.

Troubleshooting

• First connect times out — retry (cache is warm now), or MCP_TIMEOUT=60000 claude.

• Desktop fails instantly — "command" must be the full path to uvx (which uvx).

• No notes found — open Bear at least once so its database exists.

License

Apache-2.0. See LICENSE.