AI usage, counted carefully
Plain-language guides to local token records, private usage tracking, and the limits of environmental estimates.

How to check Claude Code token usage locally
Read Claude Code's local transcripts, separate input, output, cache, and thinking tokens, and inspect the result without uploading prompts or code.
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How to check Codex token usage locally
Inspect Codex session token counts from local JSONL files and understand input, cached input, output, and reasoning without exposing your work.

Can token counts measure AI carbon emissions?
Token counts are useful activity data, but they are not direct measurements of electricity or carbon. Here is what is missing and how Tokenforest uses them.