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Your public author page can be a bento profile — a grid of blocks (bio, links, featured components, a “work with me” block, and more). The CLI lets you (or an agent acting with your key) read and rewrite that board as JSON.
Profile commands require a real secret API key (21st_sk_…). Pass --api-key or set API_KEY_21ST.

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Read your board

21st profile get           # print the board as content blocks
21st profile get --json    # machine-readable

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Replace your board

21st profile set --file board.json   # replace from a JSON file
cat board.json | 21st profile set    # or pipe via stdin
21st profile set --clear             # revert to the classic (non-bento) profile
profile set replaces the whole board with the blocks array you provide. Use profile get --json first to see the current shape, edit it, then set it back.

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Upload media

21st profile upload ./avatar.png
Uploads a png, jpg, jpeg, gif, or webp and prints the resulting URL, which you can drop into an image block’s mediaUrl before calling profile set.
Because the board is plain JSON in and out, an AI agent holding your API key can manage your profile for you — read the board, add a “featured component” or “work with me” block, and set it back. See Bento profile.