API beta
1. Get a key
Log in and create an API key from Settings. Free draft runs are included during beta; credits only matter after the free cap.
Settings -> API beta -> Create API keyStep 1 of 5
OpenPen for Claude and Codex
Give your agent a final writing layer.
Your agent does the research. OpenPen sends the working context to the Non-AI Writer API and returns the final article, brief, page, or script.
Agent contextresearch + notes + tool outputsOpenPen/v1/briefs -> /v1/draftsFinal draftarticle, SEO brief, landing page, script