Automate Threads with Windsurf
Threads carries twice as much media in a single post as anything else here, on one of the tightest text limits.
{
"mcpServers": {
"antwork": {
"url": "https://api.antwork.io/mcp"
}
}
}Windsurf takes Antwork as a config snippet. It is the only client here where you edit the raw MCP configuration by hand rather than clicking or running anything.
Connect it
- 01Open the raw MCP configSettings, then MCP servers, then Edit raw config. Windsurf keeps its servers in one JSON object rather than adding them one at a time.
- 02Paste the snippet inside mcpServersDrop it in alongside anything already there. Only the antwork entry is new; nothing else in the file needs touching.
- 03Authorize, then connect the social accountThe first tool call opens an OAuth consent screen in your browser. Approve it, then ask Windsurf to connect your account.
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 Windsurf?
- 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 Windsurf 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 Windsurf to post again.
One command, one consent screen, and Threads is something you can just ask for.