Automate Threads with Claude Code
Threads carries twice as much media in a single post as anything else here, on one of the tightest text limits.
$ 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 Threads is connected
“Draft a Threads post introducing this set of screenshots, short, in my voice.”
“Take the Instagram caption I just approved and rework it for Threads.”
“Post this to Threads and schedule the same media for Instagram an hour later.”
“What did my last few Threads posts do?”
What is different about Threads
Only hereTwenty items in one post
Twenty images or videos, mixed however you like. Nothing else Antwork posts to comes close; the next highest stops at ten, and most stop at one.
The text is the caption, not the post
Five hundred characters is the second tightest limit here. The agent drafts to it instead of writing long and trimming, because on Threads the media carries the post and the text introduces it.
The largest payload Antwork will build
Each video can run five minutes at 1 GB, and there can be twenty of them. No other post this platform builds can be that big.
The same shapes Instagram takes
Video ratios are 9:16, 1:1 and 4:5, matching Instagram exactly. A cut made for one reposts to the other without recutting, which is the usual reason to run them as a pair.
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 Threads that includes writing to the length the format rewards, up to 500 characters.
Never leave Claude Code to post again.
One command, one consent screen, and Threads is something you can just ask for.