deep-tariff

Free DeepSeek Harness plugin for the official DeepSeek API peak / off-peak table.

It shows, in the user's language and time zone:

Off-peak · 2h 14m until peak · Flash $0.22 / $0.66 · 12.2K in · 1.1K out · $0.0412

Peak hours are always UTC (01:00–04:00 and 06:00–10:00). Off-peak is everything else, at half price. The chip converts those windows into the browser's IANA zone, so Beijing, New York, and London each see local clocks. Copy ships in English and Chinese. It hides on every provider that is not deepseek-official.

The same schedule runs in Node (ctx.deepTariff) and in the browser chip, so a desktop shell that embeds the Web UI (Tauri, etc.) does not need a second clock.

Install

pnpm add github:temidayoxyz/deep-tariff

Or clone this repo and pnpm add file:../deep-tariff.

Then mount both halves. --patch is enough for one process:

dsh web --patch path/to/node_modules/deep-tariff/examples/cordis.patch.yml

Or add the rows to your profile cordis.patch.yml:

- insert:
    - id: deep-tariff
      name: deep-tariff
    - id: ui-deep-tariff
      name: deep-tariff/client

Declare deep-tariff in the resolver manifest's dependencies (Harness verify-cordis-config requires it).

If your tree already ships @deepseek-ai/dsh-deep-tariff (XYZ-OS does), do not mount this package as well — you would register ctx.deepTariff twice.

What you get

Export	Role
deep-tariff	Host service ctx.deepTariff.resolve({ now, timeZone, provider, model })
deep-tariff/schedule	Isomorphic UTC table + local-clock projection (no Cordis)
deep-tariff/client	Composer-dock chip: countdown both ways, {zh,en} copy

resolve returns null when the selected route is not on the table. The chip then renders nothing.

priceUsage(buckets, rates) converts billed tokens to USD. A harness that mounts session projections can price each request at the UTC window it ran in (XYZ-OS does this as deepTariffSpend); the chip then shows this session's tokens and spend. Without that projection the line still shows the live window, countdown, and per-1M rates.

Rates and windows are Config with the official 2026-08-16 defaults. Override them in cordis.yml when DeepSeek republishes prices.

Official table (per 1M tokens, USD)

Peak is 01:00–04:00 and 06:00–10:00 UTC. Off-peak is half.

	Flash cache hit / miss / out	Pro cache hit / miss / out
Off-peak	$0.007 / $0.22 / $0.66	$0.022 / $0.66 / $1.98
Peak	$0.014 / $0.44 / $1.32	$0.044 / $1.32 / $3.96

License

MIT. Free for anyone to install into their own harness.