feat(scripts): add claude-cost-stats.py#57
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Reads the JSONL session transcripts Claude Code writes per project under ~/.claude/projects/, sums token usage by model, and prints an estimated USD cost using the public Anthropic API list prices (per million tokens). Per-1M rates are printed up-front so the totals aren't a black box — the report shows exactly which input/cache_write_5m/cache_write_1h/ cache_read/output rate was applied to each model that had usage. Unknown models fall back to the Sonnet rate and are flagged. Supports --since (7d/30d/24h/YYYY-MM-DD), --by (model/project/session), --rates (anthropic/bedrock/vertex), and --json for machine-readable output. Bedrock/Vertex rates are currently aliased to Anthropic since the per-token rates match closely; the cloud billing console is the authoritative source. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
`claude-cost-stats.py` reads the JSONL session transcripts Claude Code writes under `~/.claude/projects/`, sums token usage by model, and prints an estimated USD cost using the public Anthropic API list prices.
Why
`/cost` in Claude Code shows per-session running spend, but there's no built-in way to see lifetime totals across all sessions and projects. This fills that gap and works for Bedrock/Vertex routes too (with a `--rates` flag).
Features
🤖 Generated with Claude Code