Automate Facebook with Claude Code
Facebook gives you more room than every other platform here combined, and the smallest image ceiling of any of them.
$ claude mcp add antwork --transport http https://api.antwork.io/mcpClaude Code adds Antwork with one command and authorizes with a slash command. Nothing leaves the terminal, and there is no API key at any point.
Needs Claude Pro, Max, Team, or an API key.
Connect it
- 01Authorize with /mcpType /mcp inside Claude Code and pick antwork. It opens an OAuth consent screen in your browser; approving it makes the connection live and the token refreshes itself.
- 02Connect the social accountAsk Claude Code to connect your account and it returns a connect link per platform. Authorize once and Antwork holds and refreshes that token for you.
- 03Add the skill (optional)The open-source Antwork skill teaches the agent the right tool order — pull context, draft, then schedule or publish as a second explicit step.
What you can say once Facebook is connected
“Write a Facebook post about this announcement, long form, in my voice.”
“Take these six product photos and put them in one Facebook post scheduled for Thursday.”
“Rewrite my last Facebook post as something shorter and show me both.”
“What has performed best on Facebook over the last month?”
What is different about Facebook
Only hereRoom you will never fill
Facebook takes sixty three thousand characters, more than twenty times what LinkedIn allows. The agent writes to what the post needs rather than to a ceiling, because here the ceiling is not a real constraint.
The image ceiling is link-preview sized
Facebook's image ceiling is 1200 by 630, the smallest of any platform Antwork posts to. Anything larger leans on their resize, so the agent says so before it attaches rather than after it looks soft in the feed.
It takes formats nothing else will
Facebook is the only platform here that accepts .bmp, it takes .webp, and it will read nine different video containers. If you have an awkward file left over from somewhere else, this is where it goes through.
Ten images, or one video
A post can carry ten images. It cannot carry images and a video at once, so a mixed batch becomes two posts and the agent tells you which is which.
Questions
- Do I need an API key to connect Claude Code?
- No. Antwork connects over OAuth — you approve a consent screen in the browser and you are done. There is no key to generate or paste into a URL, which is how most social MCP servers handle it.
- Do I need a paid account?
- No. Your first two connected accounts are free forever, with unlimited posts and workspaces, and there is no plan gate on MCP access.
- Will Claude Code post without showing me first?
- Not unless you ask it to. Drafting and publishing are two separate steps: the agent writes, renders the post card, and only publishes when you confirm.
- Does the writing sound like AI?
- Antwork hands the agent that account's recent posts, along with how each performed, and the agent writes to match them. On Facebook that includes writing to the length the format rewards, up to 63,206 characters.
Never leave Claude Code to post again.
One command, one consent screen, and Facebook is something you can just ask for.