How to post to Facebook from Claude, and schedule the posts

Set it up and post, step by step

Prompt to copy once your Page is connected: Write a Facebook post about our Saturday open day, show it to me, and schedule it for Friday at 9:00 New York time.

1. Add PostWire to Claude

   Open PostWire in Claude's connector directory and press Connect; it works in Claude on the web, on the desktop and on your phone. In Claude Code, run claude mcp add --transport http postwire https://postwire.io/api/mcp. A sign-in window asks for your email and a 6-digit code, which also creates a free PostWire account if you have none: no password and no card.

2. Connect your Facebook Page

   Ask Claude: "connect my Facebook Page". It calls create_connect_link and gives you a one-hour link. Facebook shows "Continue as <your name>", then asks which Pages PostWire may use: tick the Page you want to post to and press Save. Pages you manage directly and Pages inside a Business Portfolio both appear.

3. Ask for the post

   "Write a Facebook post about our Saturday open day." generate_posts returns a draft and publishes nothing. It is written for Facebook: 40 to 80 characters when the idea allows and under 250 otherwise, the hook in the first 125 characters (where the mobile feed cuts), 1 to 3 hashtags, and a link can stay in the body. Ask for changes in plain words until it reads right.

4. Add a photo or a video, if you want one

   A file attached to the chat does not reach a connector, so Claude gives you an upload page instead (create_upload_link, valid 24 hours, up to 100 MB on the free plan and 1 GB on paid plans). Pick the file there and Claude attaches it to the post. A public https link to an image or a video works too.

5. Publish now, or schedule it

   Say "post it" and Claude calls post_to_social. Say "schedule it for Friday at 9:00 New York time" and it calls schedule_post with that time; "put it in my next free slot" uses run_at: "next_slot". This is the call Claude makes:

   {
     "name": "schedule_post",
     "arguments": {
       "platforms": ["facebook"],
       "per_platform": { "facebook": { "text": "Open day this Saturday, 10 to 2. Coffee is on us ☕ #openday" } },
       "photo_url": "https://postwire.io/m/…/open-day.jpg",
       "run_at": "2026-10-23T09:00:00-04:00"
     }
   }

6. Check the queue, and open the post

   "What's scheduled on Facebook?" calls list_scheduled_posts, and "cancel Friday's post" calls cancel_scheduled_post. Once a post is out, the result carries its link (https://facebook.com/…) and the Page it went to, and get_post_performance ranks your Facebook posts by reactions, comments and shares.

The same queue is on the dashboard's Queue page, with Reschedule and Cancel. Prefer to set it up by hand first? Open the dashboard, connect the account under Accounts and copy your key under API & MCP.