CLI tools for the quantified self — export your personal data from various services so you (and your LLMs) can analyze it.
Output is Markdown by default — well-suited for piping into LLM context, dropping into notebooks, or rendering as-is. Pass --format json (or --format csv, where supported) for tools that want structured rows.
Every CLI exposes a prime subcommand that prints a one-screen primer aimed at LLM agents calling the CLI as a tool. They all share a single user-facing contract: same date flags (--since / --until), same output formats, same auth status shape.
- crono-export-cli — Cronometer (nutrition logs, daily totals, biometrics, exercises, notes)
- liftoff-export-cli — Liftoff (gym workouts with sets/reps/weights, bodyweight history)
- withings-export-cli — Withings (activity, sleep, workouts, body measurements, intraday HR/HRV/SpO2)
- homebrew-tap — Homebrew casks for the CLIs
- common — shared contract every CLI follows
brew tap quantcli/tap
brew install <tool-name>