dsh-usage-center

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A native usage and cost dashboard for DeepSeek Harness Web. It adds a dedicated Usage & Cost section to DSH Settings and keeps provider usage, subscription quotas, balances, API estimates, and annual activity in one place.

Features

• Daily input, cached-input, and output token usage grouped by provider and model.
• A 365-day token activity heatmap with total tokens, peak daily tokens, current streak, and longest streak.
• DeepSeek account balance, including available, topped-up, and granted balances.
• Z.ai Coding Plan quota percentages for the current session window, weekly window, and billing cycle.
• Kimi Code membership tier plus rolling 5-hour and weekly quota percentages.
• API-equivalent cost estimates calculated from public model rates.
• Persistent snapshots with stale-while-revalidate loading for instant repeat visits.
• English and Chinese UI that follows the active DSH language setting.
• Local-only aggregation and a loopback-only read API.

Estimate vs. actual charge

API estimates answer: “What would the same token usage cost at public API rates?” They are not invoices and are not treated as subscription charges.

• Metered providers show today’s estimated API cost and any supported account balance.
• Subscription providers show quota consumption percentages plus an API-equivalent estimate.
• Pricing source links and effective dates are shown directly in the UI.

Requirements

• DeepSeek Harness Web with plugin support.
• Node.js >= 22.19.0.

Quick install

dsh plugin --profile web add dsh-usage-center

Restart DSH Web after installing:

dsh web

The npm package and repository include a prebuilt plugin bundle, so installation does not require pnpm allowBuilds configuration. To install directly from GitHub, use github:Tieboyh/dsh-usage-center as the package name.

Install from source

git clone https://github.com/Tieboyh/dsh-usage-center.git
cd dsh-usage-center
npm install
npm run check
dsh plugin --profile web add "$PWD"

Use the source workflow when developing or modifying the plugin. Restart DSH Web after installing, upgrading, or removing it.

Credentials

The plugin reuses DSH credentials. API keys are resolved only by the server process and are never returned to the browser or written into the snapshot.

Credential	Purpose
DEEPSEEK_API_KEY	Reads the DeepSeek account balance.
ZAI_CODING_CN_API_KEY	Reads quota windows for a China-region Z.ai Coding Plan.
ZAI_API_KEY	Fallback credential for a Z.ai Coding Plan.
ZAI_API_REGION	Optional Z.ai region override.
KIMI_CODING_API_KEY	Reads the Kimi Code membership tier and subscription quota windows.

Data and refresh behavior

Usage is derived locally from DSH session events. Repeated cumulative usage samples for the same turn and step replace earlier samples instead of being double-counted.

• The last successful result is saved to <DSH_HOME>/storages/usage-center-snapshot.json.
• Opening the page or restarting DSH immediately displays the current-day snapshot.
• Snapshots older than one minute remain visible while a refresh runs in the background.
• Manual refresh keeps existing data on screen.
• If an upstream balance or quota request fails, the last successful snapshot remains available.
• The snapshot contains aggregated usage and displayed balance/quota results, but no API keys.

Privacy and security

• The overview endpoint accepts read-only GET requests from loopback clients only.
• Session contents and raw event logs are not exposed to the browser.
• Credentials stay behind the DSH credentials service.
• No external analytics or telemetry are included.

Development

npm install
npm run check
npm run build

npm run check performs syntax checks and runs the Node test suite. npm run build updates the committed DSH client and server bundle in lib/; the committed bundle makes the GitHub one-line install work without dependency build approval.

License

MIT