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Awesome-omni-skill anthropic-usage

Check Anthropic API usage and costs for any time period. Use when the user asks about API costs, usage, spending, or billing for their Anthropic account. Supports natural language periods like "last week", "yesterday", "january 2025", specific dates, or date ranges.

install
source · Clone the upstream repo
git clone https://github.com/diegosouzapw/awesome-omni-skill
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/diegosouzapw/awesome-omni-skill "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/development/anthropic-usage" ~/.claude/skills/diegosouzapw-awesome-omni-skill-anthropic-usage && rm -rf "$T"
manifest: skills/development/anthropic-usage/SKILL.md
source content

Anthropic API Usage

Fetch cost reports from the Anthropic Admin API.

Prerequisites

  • ANTHROPIC_ADMIN_KEY
    must be set in 
    ~/.env

Usage

Run the script with a time period:

~/.claude/skills/anthropic-usage/scripts/get_cost.py "<period>"

Supported Period Formats

FormatExampleDescription
Relative week
last week
, 
this week
7-day periods
Relative month
last month
, 
this month
Calendar months
Relative day
yesterday
, 
today
Single days
Last N days
last 3 days
, 
last 30 days
Rolling window
Specific date
2026-02-01
Single UTC day
Date range
2026-01-01 to 2026-01-31
Inclusive range
Month name
january
, 
feb 2025
Full calendar month

Options

  • --format table
    (default): Human-readable table with totals
  • --format json
    : Raw API response

Notes

  • Costs are returned in USD
  • Data is reported in UTC day buckets
  • The API returns amounts in cents; the script converts to dollars