Data usage changeddata-usage
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9898## Telemetry services
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100Claude Code sends two kinds of operational telemetry: usage metrics and error reports. You can turn each off individually with the environment variables below, or disable all non-essential traffic at once by setting `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC`. Setting `DISABLE_TELEMETRY` or `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC` also disables the feature-flag evaluation that [Remote Control](/docs/en/remote-control#requirements) depends on; `DISABLE_ERROR_REPORTING` doesn't.
100Claude Code sends two kinds of operational telemetry: usage metrics and error reports. You can turn each off individually with the environment variables below, or disable all non-essential traffic at once by setting `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC`. Setting `DISABLE_TELEMETRY` or `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC` also disables feature-flag evaluation, which can make [Remote Control](/docs/en/remote-control#requirements) unavailable; `DISABLE_ERROR_REPORTING` doesn't.
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102102**Metrics**: latency, reliability, and usage patterns, sent to Anthropic and to third-party logging infrastructure over TLS. Metrics never include your code, prompts, or file paths. Set `DISABLE_TELEMETRY=1` to opt out.
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