Han-1413141/dsh-cost-meter

This is a native plugin built exclusively for DeepSeek Harness, designed to track and display conversation costs and usage quota for LLM API calls. It supports real-time calculation of current session and daily costs, displays official DeepSeek account balance, custom provider balances, and OpenCode Go subscription quota. It also covers 9 different coding plan providers, supports peak/off-peak pricing with configurable reminders for price switching, and one-click sync of official model prices. It includes a built-in price list for over 90 models, separates billing for subscription plans and pay-as-you-go usage, and generates a Codex-style token usage heatmap.

This plugin is targeted at developers who regularly use LLMs from DeepSeek and other vendors, as it helps them keep track of their usage and spending to avoid unexpected overages. It adds a horizontal bar above the input box that shows the percentage used for budget and each enabled subscription plan, warns when usage hits 80%, and alerts when usage exceeds 100%. Users can click any section to manually refresh data, and they can also enable simplified sidebar display to compress content and save interface space. All UI elements can be toggled on or off based on user preference, so users only see what they need for their workflow.

This plugin is released under the open-source MIT license, and it only relies on Node.js built-in modules and a small number of official DSH dependencies, so there is little risk of dependency conflicts. It has several documented limitations: historical cost breakdown by model requires unexpired host session logs, official price sync depends on the current structure of DeepSeek's pricing page, and balance queries require network access to the official DeepSeek API domain. After installing or updating the plugin, you need to restart the dsh web process for changes to take effect. Custom model prices added by users are never overwritten during official price sync operations.