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square-post — Claude Code skill: what it does, how to install

Publishes short updates, multi-image posts, long articles, and videos directly to Binance Square using OpenAPI scripts.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add binance/binance-skills-hub --skill square-post -a claude-code
Open on GitHub

What square-post does

This skill delivers content to Binance Square via local Node.js automation scripts. Supported formats include text notes, titled articles, photo posts containing up to 4 images, and individual videos. The skill strictly creates fresh content. You cannot read feeds, edit drafts, delete entries, like posts, or post comments with it.

Execution relies on local helper scripts: post-text.mjs, post-image.mjs, and post-video.mjs. The environment requires Node.js 18 or newer with native fetch support. Video uploads depend directly on ffmpeg to extract the initial frame as a cover, plus ffprobe to compute video duration when you omit it.

Requests authenticate via BINANCE_SQUARE_OPENAPI_KEY, supplied either in the environment or stored at ~/.config/binance-square/openapi-key. Quotas limit execution to 100 posts and 400 media uploads daily. Static pictures and video clips cannot share the same post.

What it helps with

  • publish short market commentary to Binance Square
  • post chart galleries with up to 4 images
  • submit full-length articles with dedicated covers
  • upload analysis videos with auto-extracted preview frames

Example prompts for the agent

  • Publish this market update to Binance Square
  • Post this article to Square with chart.png as the cover
  • Upload video.mp4 to Binance Square with my commentary

How to install square-post

1Skills CLI (Vercel)

npx skills add binance/binance-skills-hub --skill square-post -a claude-code

2Manually: put the files in place

~/.claude/skills/square-post/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/square-post/

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Questions about square-post

How to install square-post in Claude Code?

Run npx skills add binance/binance-skills-hub --skill square-post -a claude-code in your terminal.

What does square-post do?

It interfaces your coding assistant with the Binance Square OpenAPI to publish text entries, articles, photos, and video posts.

What are the dependencies for video uploads?

You need Node.js 18+, ffmpeg for grabbing the opening frame cover, and ffprobe for measuring file duration.

See also

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