cctop-tui 0.1.0

A live terminal monitor for multiple Claude Code and OpenAI Codex accounts, in the spirit of nvtop/htop.

cctop

A live terminal monitor for your Claude Code and OpenAI Codex usage, in the spirit of nvtop/htop. It auto-detects your accounts (your Claude account and your Codex account both work out of the box, no setup), shows real usage-limit gauges and every running session, and gives a GitHub-style view of your activity over time. Running more than one Claude subscription? It picks those up too.

Everything is read from files the tools already write plus a couple of free, read-only usage reads; nothing here ever spends message quota. cctop touches your credentials only to make those reads, never logs or transmits a token, and is read-only except for two explicit, additive account actions. See SECURITY.md for the full trust statement.

What it shows

• Usage limits (top panel), per account, side by side: the 5-hour, weekly (all models), and weekly (Fable) windows with utilization, reset countdown, and the currently-binding window marked. These are the real numbers from Anthropic's GET /api/oauth/usage endpoint (the same one /usage uses) — a free read, no tokens consumed.
• Sessions (table): every live Claude Code process, tagged by account, with status, model, cwd, context %, cumulative tokens, cost, and age. Selecting a row opens a detail panel (full cwd, pid, version, token/cost/context breakdown).
• Statistics (press s): a GitHub-style daily-activity heatmap, lifetime totals (messages, sessions, tool calls, active days, longest streak, busiest day), a top-models-by-tokens chart, and a per-account breakdown, all merged from each account's stats-cache.json.

Install

Requires macOS and Python 3.11+ (Linux support is planned).

Once published to PyPI (distribution name cctop-tui), the one-liners are:

uv tool install cctop-tui     # or: pipx install cctop-tui
uvx cctop-tui                 # run without installing (starts the `cctop` TUI)

From a clone (current default while pre-release):

cd cctop
uv venv --python 3.12
uv pip install -e .           # add ".[dev]" for the test/lint tooling
cctop

Usage

cctop                 # launch the live TUI (default)
cctop --once          # print a one-shot snapshot and exit
cctop --json          # emit the snapshot as JSON (for scripting)
cctop --no-limits     # skip the usage fetch (no network, session table only)

cctop accounts        # list discovered accounts (read-only)
cctop doctor          # read-only self-check (platform, binaries, token/expiry)
cctop add-account     # provision a new account (dry-run; see Accounts below)

TUI keys: s stats · r refresh limits · R refresh token · a add account · q quit.

Token refresh (R)

A Claude Code OAuth access token lives only ~12-15h, and the CLI refreshes it lazily when you use an account, so an account you are merely monitoring drifts past expiry and the usage read starts failing (token expired). Press R and cctop asks the tool that owns the credential to renew it: it runs claude mcp list under each account's config dir (a quota-free command whose startup renews and rewrites the Keychain record). cctop never writes a credential itself — it only triggers the owner binary and reads the result — and it is a no-op on tokens that are still valid. An account whose refresh token is itself dead reports "needs re-login" (only a fresh /login can fix that).

Accounts

cctop auto-detects your accounts with zero setup: your Claude Code account (~/.claude) and your Codex account (~/.codex) are picked up automatically. For most people that is the whole story: install, run cctop, done. Run cctop accounts to see what it found.

Multiple Claude accounts (optional). If you run more than one Claude subscription in separate config dirs (via CLAUDE_CONFIG_DIR), cctop shows them all side by side. To add one without leaving cctop, press a (or run cctop add-account --login): it creates the config dir, optionally clones your existing config, and signs you in. It is strictly additive — it never deletes, overwrites, or modifies existing config, credentials, or sessions, and only writes a shell alias if you explicitly ask for one.

How it works

Data	Claude source	Codex source	Cost
Live sessions	~/.claude*/sessions/<pid>.json	ps + ~/.codex/sessions/ rollouts	free (file/ps)
Tokens / context	transcript JSONL, tailed	rollout token_count events	free (file)
Usage limits	GET /api/oauth/usage (Keychain token)	GET chatgpt.com/backend-api/codex/usage (~/.codex/auth.json token)	free (GET)
Statistics	~/.claude*/stats-cache.json	aggregated from rollout files	free (file)

Providers

cctop tracks both Claude Code and OpenAI Codex side by side. Claude accounts are cc-0/cc-1/…; a Codex account (cx-0, from ~/.codex) is added automatically when present. Usage windows and stats are read per provider (they differ in shape: Codex exposes primary/secondary windows plus per-model limits, and its stats come from rollout files rather than a stats cache). Codex sessions show token/context but no dollar cost, since Codex is subscription-based.

The credential for the usage read is resolved per account from the macOS Keychain service Claude Code-credentials-<sha256(config_dir)[:8]>, used only to authenticate to Anthropic's own API, never logged or persisted. The usage response's org is verified against the account so one account can never show another's numbers.

Undocumented, version-internal formats (the sessions registry, transcript schema, usage JSON) are all read defensively and isolated to the collector core (registry, transcript, usage, stats, monitor, pricing, status, codex* for the Codex provider, authctl for delegated token refresh, and manage for additive account provisioning), with a thin Textual presentation layer on top.

Notes

• Pricing (pricing.py) is a small editable table; update it as rates change.
• The palette is the house teal (#20B2AA) on monochrome terminal. Usage bars stay teal even when maxed (fullness is the signal); red is reserved for a blocked or dead session.

Author

Ryan 'RyanIRL' Peters