pi-usage-meter

A Pi coding agent extension that shows a provider usage meter in the footer for Z.ai and Kimi for Coding.

The meter refreshes every 60 seconds, even when the agent is idle, so the countdown keeps ticking when you hit a quota and are waiting to send the next prompt.

Example footer

Z.ai: 5h 45% (2h 15m) · wk 12% (5d)
Kimi: 7d 6% (6d20h) · 5h 28% (1h40m)

The first value is the usage window label (5h/wk for Z.ai, 7d/5h for Kimi), the percentage is how much of the quota is used, and the bracketed time is how long until that window resets.

Supported providers

Provider	Provider id(s)
Z.ai	zai, zai-coding-cn
Kimi for Coding	kimi-coding

Install

From GitHub:

pi install git:github.com/rock3r/pi-usage-meter

From the checked-out repo:

cd c:\src\pi-usage-meter
pi install .

Or as a local path in your global Pi settings (~/.pi/agent/settings.json):

{
  "extensions": [
    "c:/src/pi-usage-meter"
  ]
}

If you still have npm:@alexanderfortin/pi-zai-usage installed, remove it first to avoid two Z.ai meters:

pi remove npm:@alexanderfortin/pi-zai-usage

Usage

The meter appears automatically in the footer when a supported provider is active. It updates on:

• session start
• model change
• turn end
• a setInterval tick every 60 seconds

Run /usage at any time to force a refresh.

Auth

Auth is resolved through Pi itself (ctx.modelRegistry.getApiKeyForProvider), so it works with:

• Environment variables (ZAI_API_KEY, ZAI_CODING_CN_API_KEY, KIMI_API_KEY)
• Stored credentials from /login
• ~/.pi/agent/auth.json entries

For Z.ai, the extension calls https://api.z.ai/api/monitor/usage/quota/limit. For Kimi, it calls https://api.kimi.com/coding/v1/usages (override with KIMI_CODE_BASE_URL).

License

Licensed under the Unenshittifiable License (UEL) v1.0. Use it, fork it, learn from it, self-host it, improve it — just don't turn the commons into a toll booth.