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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 12 Oct 2026
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Usage Report changedapi/beta/organization/usage_report

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143143 The version of the Claude API you want to use.
144144 
145 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
145 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
146146 
147147- `"anthropic-beta": optional array of AnthropicBeta`
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449449 
450450 The version of the Claude API you want to use.
451451 
452 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
452 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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454454### Returns
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