How to post to Facebook from ChatGPT
ChatGPT writes the Page post and schedules it. Paste the link and Facebook builds the preview card from the first URL in the text.
How do I post to Facebook from ChatGPT?
Add the planpo.st MCP server to ChatGPT, connect Facebook once in the dashboard, then ask. The first three steps are one-time.
- 1
Create an API key and add planpo.st to ChatGPT
Make a scoped key in planpo.st under Settings. Open Settings, then Connectors, then Create, and enter the MCP URL with a custom Authorization header. ChatGPT connects to remote servers only, so the hosted endpoint is the one route. Whether you see Connectors depends on your plan and on developer mode.
- 2
Confirm the server is connected
Enable the connector in a new chat and ask it to list your connections.
- 3
Connect Facebook
Connect a Facebook Page in the dashboard under Connections. planpo.st publishes to Pages; each Page is one connection, and the agent can produce the connect URL with get_connection_link.
- 4
Know what the post needs
A Facebook post needs text and nothing else. The limit is 63,206 characters, media is optional and no platformSettings are required.
- 5
Ask in a ChatGPT conversation
Say what to post and when. ChatGPT finds the Facebook connection, creates the post, and tells you whether it was scheduled or kept as a draft, with the reason.
Settings -> Connectors -> Create
Name: PlanPost
MCP URL: https://mcp.planpo.st/mcp
Auth: Custom header
Header: Authorization
Value: Bearer pk_live_xxxReplace pk_live_xxx with your own key.
Which transport does ChatGPT use?
For ChatGPT there is one way in, the hosted endpoint as a custom connector. Nothing runs on your machine. The key travels in a header on every request and the endpoint keeps no session between them.
- There is no local option here. ChatGPT connects to remote MCP servers only, so use the hosted endpoint.
- Connector support has moved around between ChatGPT plans. If you cannot see the option, check OpenAI's current documentation rather than assuming the endpoint is at fault.
The full walkthrough is on the ChatGPT setup page.
What can ChatGPT do on Facebook?
It can publish text posts with a link preview, single photos, multi-photo posts, videos and Reels to a Page, and it can leave a post unpublished as a draft on the Page. It cannot post to a personal profile or publish Facebook Stories.
Text and link
A text post. The first URL in it is attached as the link, which is what makes Facebook draw the preview card.
Photos
One image is a photo post, several are a multi-photo post.
Video or Reel
postType "reel" publishes a Reel. A portrait video of 180 seconds or less is routed to Reels as well.
Draft on the Page
optionalpublishAsDraft creates the post unpublished, for someone to review and publish inside Facebook.
Attachments are optional on Facebook. When a post should carry one, that is the one awkward part of this pairing. ChatGPT connects to the hosted endpoint only and cannot PUT a file from your machine to an upload URL. Two routes work: upload the file in the planpo.st dashboard and let ChatGPT pick it with list_media, or ask for a carousel rendered from text with render_carousel.
Which settings does a Facebook post take?
Facebook reads two settings, both optional. Which Page receives the post is decided by the connection, not by a setting.
| Field | Allowed values | If you leave it out | Worth knowing |
|---|---|---|---|
| platformSettings.facebook.publishAsDraft | true or false | false, published live | true creates the post unpublished on the Page. It stays there until someone publishes it in Facebook. |
| platformSettings.facebook.isReel | true or false | Set from postType | postType "reel" or "short" sets it. A portrait video up to 180 seconds becomes a Reel without it. |
| postType | "post" or "reel" | "post" | "story" is accepted with a Facebook connection and has no Story publisher behind it, so do not use it for Facebook. |
| platformSettings.facebook.pageId | Not read | The connection's Page | Pick the Page with connectionIds. One connection is one Page. |
| platformContent.facebook | Text, 63,206 characters or fewer | The shared content | In practice the limit is never the problem. |
| media, platformMedia.facebook | Images, or one video | Text post | The first attachment decides the kind of post. With a video first, only that video is used. |
What do I type to post to Facebook from ChatGPT?
Plain requests work. Each example lists the tool calls ChatGPT makes in response.
1. Page post with a preview card
You say
Use the copy we just worked out above. Write a short Facebook Page post about it with the link to the full write-up, and schedule it for tomorrow 08:30.
Tool calls
create_post({ content: "<two or three sentences> https://...", connectionIds: ["<page id>"], schedule: "tomorrow 08:30" })A scheduled text post. At publish the first URL is attached as the link, so the Page shows the preview card and the link is tracked.
2. Leave it as a draft on the Page
You say
Take the announcement I pasted. Prepare a Facebook post from it for the client's Page, but as an unpublished draft there. They want to press publish themselves.
Tool calls
create_post({ content: "<post text>", platformSettings: { facebook: { publishAsDraft: true } }, connectionIds: ["<client page id>"], schedule: "today 15:00" })At 15:00 the post is created on the Page as a draft, not shown to followers. The client finds it in the Page's own tools.
3. A photo set
You say
Find the latest image in my planpo.st media library. Add the three other photos from the same shoot in my library and publish them together on the Page on Saturday 10:00.
Tool calls
list_media({ type: "image" })
list_media({ type: "image" })
create_post({ content: "<caption>", media: [<4 images>], connectionIds: ["<page id>"], schedule: "saturday 10:00" })One multi-photo post. list_media returns items already shaped for the media array, so they pass straight through.
What stops a Facebook post from ChatGPT?
The tag on a card is the code that comes back in the tool result.
Pages only
The publisher posts to the Page behind the connection. Personal profiles and groups are not targets.
No Facebook Stories
Stories are published for Instagram. A Facebook connection has no Story path, so a "story" post would go out as an ordinary photo or video.
The first URL becomes the card
In a text post the first link is the one Facebook previews. Put the link you care about first, or keep it to one.
Vertical video goes to Reels
Portrait video of 180 seconds or less is sent as a Reel even with post type "post". Landscape video stays a regular video post.
One video per post
When the first attachment is a video, the rest are ignored. Photos and video do not mix in one post.
63,206 characters
char_limitThe check exists and you will not hit it by accident.
If Connectors is missing, it is the plan
ChatGPTCustom connector availability has moved between ChatGPT plans and settings. When the option is not there, check OpenAI's current documentation before assuming the endpoint is broken.
Can ChatGPT tell me what a Facebook post earned?
Yes. Links in Facebook posts are clickable and the first one becomes the preview card, so a tracked link gets clicks that payments can be matched to. get_revenue_overview returns the totals and recent transactions. Pages that sell physical products tend to have Shopify behind them, and that is the integration I would connect first.
ChatGPT and Facebook: questions people ask
- Can ChatGPT upload an image from my machine for Facebook?
- Not directly. ChatGPT connects to the hosted endpoint only and cannot PUT a file from your machine to an upload URL. Upload the file in the dashboard and ChatGPT finds it with list_media, or have it render one: render_carousel makes branded images from text.
- Can it post to my personal Facebook profile?
- No. It publishes to Facebook Pages. Each connected Page has its own connection ID.
- What does publishAsDraft do?
- It creates the post on the Page unpublished. Nobody sees it until someone publishes it from Facebook's own tools, which suits a client who wants the last click.
- What happens when ChatGPT sends a Facebook post that breaks a rule?
- It is told at once. The usual case on Facebook is a Page whose connection has lapsed: the post is kept as a draft and the tool result carries connection_inactive plus the fix, which ChatGPT applies with update_post.
- Is there a local option for ChatGPT?
- No. ChatGPT talks to remote MCP servers, so it uses https://mcp.planpo.st/mcp with your API key in a header. The endpoint is stateless and every request carries the key. Posting to Facebook works the same as from any other client.
- Can I limit what ChatGPT is allowed to do?
- Yes, with the API key. Keys are scoped, so a key without posts:write can read your Facebook schedule and not change it, and a key set to require approval turns every post into a request you approve.
Keep going
Facebook from other agents
Other networks from ChatGPT