Go Usage

An OpenCode TUI plugin that shows your OpenCode Go subscription usage in the sidebar: rolling (5 h), weekly and monthly limits, with percent consumed, status and time until each reset.

Data comes from the public API — no scraping:

• GET https://opencode.ai/zen/go/v1/usage (Bearer API key of your opencode-go account) → rolling, weekly and monthly percent, ok/rate-limited status and reset date.

What it looks like

Rendered in the sidebar.content slot of every session:

┌────────────────────────────────────────┐
│ ⬖ OpenCode Go                ▾         │
│ rolling  █░░░░░░░   0% ✓  ↻ 2h         │
│ weekly   ░░░░░░░░   4% ✓  ↻ 1h         │
│ monthly  ████████ 100% ✕  ↻ 9d         │
└────────────────────────────────────────┘

Up to 3 rows (rolling / weekly / monthly) with a usage bar, percent and time until reset. Auto-refreshes every 5 minutes (no requests are made while the widget is collapsed). Collapsed, only the header with "▾/▸" remains.

Use Show or hide the OpenCode Go usage panel (palette Ctrl+P, or slash /opencode-go) to toggle the widget. The state persists across restarts.

Install

Add the package to plugins in your global ~/.config/opencode/opencode.json(c):

{
  "plugins": ["@pistonex/opencode-go-usage"]
}

For CLI-only behavior against remote servers, add it to ~/.config/opencode/cli.json instead:

{
  "plugins": ["@pistonex/opencode-go-usage"]
}

Then restart OpenCode.

Requires OpenCode v2 (CLI plugin API).

How it gets the API key

The plugin reads ~/.local/share/opencode/account.json, finds the account with serviceID === "opencode-go" and uses its credential.key. The key is only used in memory for the Authorization: Bearer request; it is never printed or written anywhere.

Language

The plugin is bilingual (ES/EN). Language resolution order:

1. The plugin language option ("es" or "en") in opencode.json(c)
2. A persisted choice (see the slash command below)
3. Auto-detected from your environment (LANG/LC_ALL)

Override it at any time with the slash command:

• /opencode-go-lang — toggle ES/EN
• /opencode-go-lang en / /opencode-go-lang es — set a specific language

Options

{
  "plugins": [{ "package": "@pistonex/opencode-go-usage", "options": { "language": "en" } }]
}

Option	Values	Description
language	es, en	Force a language, ignoring the rest

Configuration

Constants live in src/opencode-go-usage.tsx:

• USAGE_URL — public usage endpoint (only change if the API changes)
• REFRESH_MS — refresh interval (default 5 min)
• FETCH_TIMEOUT_MS — request timeout (default 10 s)

Notes

The Zen balance and the "Use balance" toggle are not exposed by any public OpenCode API (they live in the console's database and are read through browser-session server actions). This plugin shows subscription usage, which is everything the API offers. See docs/RESEARCH.md for the full investigation.

Development

npm install
npm run typecheck

The plugin is a single .tsx file (src/opencode-go-usage.tsx) using the standard OpenCode v2 CLI plugin contract: Plugin.define({ id, setup }) from @opencode/plugin/tui, @opentui/solid JSX and theme tokens via usePlugin().

License

MIT © Tony Pistone