1. Introduction

agtok is a tool for centrally managing and switching tokens and base URLs for three common CLIs with a single command: claude-code, gemini-cli, and codex-cli. It supports both interactive TUI and command-line interface (CLI). It manages presets grouped by Agent, supports preview and application, and ensures atomic writes with backups.

2. Preview

3. Quick Start

Install agtok

Method 1: Brew install

# Install
brew tap vaspike/homebrew-agtok && brew install agtok

# Update
brew upgrade agtok

Method 2: Download Release

1. Visit the Releases page
2. Download the corresponding release
3. Unpacking release
4. (macOS, Linux)Execute in a terminal(create a soft link):

   # create a soft link
   sudo ln -sfn "$PWD/agtok" /usr/local/bin/agtok
   
   # Or direct cp to `/usr/local/bin/`
   sudo cp -f "$PWD/agtok" /usr/local/bin

5. (Windows) Copy the agtok.exe file to the C:\Program Files\agtok directory

Initialize Presets, run in your usual terminal:

agtok init

Open the Preset Management TUI:

agtok

4. Features

• Preset Structure

  • Presets are stored by Agent in separate files under ~/.config/token-switcher/presets/
  • Example (claude.json):

  { "version": 1, "presets": [
    { "alias": "dev", "url": "https://...", "token": "sk-...", "model": "sonnet", "added_at": "20251031-0945" }
  ]}

  • In the TUI, press p to display the preset directory path in the top Status bar.

• Initialize Presets

  • TUI: In an Agent table, press i to generate a preset from the current disk configuration (default alias snap-default, automatically adds a timestamp if name conflicts); automatic deduplication.
  • CLI: agtok init [--agent <id>] [--alias <name>]

• Add Presets

  • TUI: Press a to open the form (URL is required, Alias can be empty, Token is optional), press Enter to save.
  • CLI: agtok presets add --agent <id> [--alias <name>] --url <u> [--token <t>]

• Update Presets (TUI)

  • TUI: Select a row and press u to update fields. URL left blank = unchanged; Token - = clear (preset only); blank = unchanged; for Claude, Model empty = clear, non-empty = set.
  • If updating the active row, Claude's Model on disk is strictly mirrored: empty removes ANTHROPIC_MODEL, non-empty writes/overwrites. Other agents update presets only.

• Apply Presets to Agent Configuration

  • TUI: Select a preset and press Enter; writes are atomic with backups, permissions 0600; Claude only writes ANTHROPIC_AUTH_TOKEN.
  • Claude Model: applying a Claude preset mirrors ANTHROPIC_MODEL on disk; if the preset has no model value, the key is removed; if it has a value, the key is written/overwritten.
  • CLI: agtok apply --agent <id> --alias <name> [--dry-run] or agtok apply --agent <id> --url <u> [--token <t>]

• Rename/Delete Presets

  • TUI: e to rename (validates uniqueness and format), d to delete (requires secondary confirmation); the active row cannot be deleted.

• Version Detection

  • TUI: The first column of each Agent's active row displays the version number; Not installed is shown if not installed, Unknown if parsing fails.
  • Detection commands: claude -v / gemini -v / codex -V; asynchronous backfill, cached for 60s. Gemini detection allows a slightly longer timeout.

• Status Bar & Details

  • Top bar shows agtok <version> and a colored Status (green for OK, red for errors). Press p to show the presets dir path in Status.
  • Details panel shows the selected row; for Claude, Model is displayed and (not set) appears in muted color when empty.

• Running Modes

  • TUI: Run agtok without parameters to enter TUI; or explicitly agtok tui.
  • CLI: Effective when subcommand and parameters are passed (list/apply/presets/init).

5. Supported Agents

• Claude-code (agent id: claude)

  • Path: ~/.claude/settings.json
  • Keys: Reads env.ANTHROPIC_AUTH_TOKEN/_API_TOKEN/_API_KEY; only writes _AUTH_TOKEN.

• Gemini-cli (agent id: gemini)

  • Path: ~/.gemini/.env
  • Keys: GOOGLE_GEMINI_BASE_URL, GEMINI_API_KEY.

• Codex-cli (agent id: codex)

  • Path: ~/.codex/config.toml (model_providers.codex.base_url), ~/.codex/auth.json (OPENAI_API_KEY).

6. Supported Platforms

• macOS, Linux: Fully supported (TUI/CLI, preset persistence, version detection, atomic writes).
• Windows: Planned support.