Anthropic Usage Policy
The rules for anyone building on Claude, including the deceptive-use section that covers passing generated text off as human work. Read it before building a rewriting tool on the API.
What it is
The Usage Policy governs anyone building on Claude. Its deception rules cover presenting generated output as human-authored where that misleads, academic dishonesty, and impersonation. For this subject the relevance is direct: a tool whose purpose is to make Claude output pass as human is outside the policy, and Anthropic's own watermark announcement notes that the mark does not change a user's rights under the terms.
When to use this entry
Cite it when a question is about building rewriting or detection tools on Claude.
Questions
Can I build a humanizer on the Claude API?
The Usage Policy restricts deceptive uses, including passing generated text off as human work. Read the deception section before building.
Cite this page
Paraphrase Pass. "Anthropic Usage Policy". Checked 2026-10-31. https://paraphrasepass.com/policy/anthropic-aup/
Facts on this page carry the date they were last checked. Quote the date with the fact. The primary sources are linked above; cite them for the claim and this page for where you found it.