@squidcode/timebook

Timebook CLI

Command-line client and MCP server for Timebook — track time, manage timers, and expose your Timebook account to AI agents (Claude, Codex, Cursor, …) over the Model Context Protocol.

Install

# one-off
npx @squidcode/timebook login

# globally
npm install -g @squidcode/timebook
timebook --help

Requires Node.js 18.17+.

Authenticate

timebook login opens your browser, you log into Timebook (or use an existing session) and pick a scope (which clients/projects this token can touch). The browser delivers the token back to a short-lived loopback HTTP listener, which the CLI then writes to a config file with 0600 permissions.

timebook login

The token is stored at:

• macOS: ~/Library/Preferences/timebook/config.json
• Linux: ~/.config/timebook/config.json
• Windows: %APPDATA%\timebook\Config\config.json

The token never leaves your machine after login. To revoke it server-side, visit https://usetimebook.com/settings/api-tokens.

Use it as a CLI

timebook whoami
timebook projects                         # list projects
timebook clients                          # list clients

timebook start -p "Acme website" -d "Wireframes"
timebook status                           # show running timer
timebook stop

# manual entries
timebook log -p "Acme website" -t 1h30m -d "Code review"
timebook log -p PROJ_ID --start 2026-05-04T09:00 --end 2026-05-04T10:30

timebook entries --project "Acme website" -n 10

Duration formats accepted: 1h, 45m, 1h30m, 1.5h, 1:30, or a bare number (interpreted as minutes — e.g. 90 → 1h 30m).

Use it as an MCP server

The same binary speaks MCP over stdio when invoked with timebook mcp. Drop it into any MCP-aware host (Claude Code, Claude Desktop, Codex, Cursor, …):

Claude Code / Claude Desktop

{
  "mcpServers": {
    "timebook": {
      "command": "npx",
      "args": ["-y", "@squidcode/timebook", "mcp"]
    }
  }
}

Or, if installed globally:

{
  "mcpServers": {
    "timebook": {
      "command": "timebook",
      "args": ["mcp"]
    }
  }
}

The MCP server reuses the token saved by timebook login — run timebook login once in a terminal before starting the agent.

Tools exposed to the model

Tool	What it does
whoami	Current authenticated user
list_projects	All projects in scope
list_clients	All clients in scope
get_active_timer	The running timer, or null
start_timer	Start a timer on a project
stop_timer	Stop the running timer
log_time	Log a manual entry (duration OR start+end)
list_entries	Recent entries, optional project + date filters

Configuration

Override the API/web hosts (useful for self-hosted Timebook or local dev):

TIMEBOOK_API_URL=https://api.example.com \
TIMEBOOK_WEB_URL=https://example.com \
timebook login

You can also pass --api-url and --web-url to timebook login once; subsequent commands re-use the saved values.

Develop

git clone https://github.com/squidcode/timebook-cli
cd timebook-cli
npm install
npm run dev -- --help        # tsx-powered hot-loop
npm run build                # emits dist/
npm run lint && npm run typecheck

Pre-commit hooks (ESLint + Prettier via lint-staged) are wired up by husky on npm install.

Release

prepublishOnly runs lint + typecheck + build, then:

npm publish --access public

License

MIT © Squidcode LLC. See LICENSE.