Example prompt
“Write a Facebook post for our Page about the new winter hours, with the shopfront photo from our media library. Schedule it for Monday at 7am, held for my review.”
ChatGPT + Wahlu
Connect ChatGPT to Wahlu once, then plan, draft and schedule posts for Facebook Pages connected to Wahlu from a conversation. Every schedule can wait for your approval.
Page post
One image or video with a caption.
Reel
One vertical video.
Story
One image or video. Stories don't take a caption.
Example prompts and the steps to expect. These are illustrations, not recorded conversations.
Example prompt
“Write a Facebook post for our Page about the new winter hours, with the shopfront photo from our media library. Schedule it for Monday at 7am, held for my review.”
Example prompt
“Turn this clip into a Facebook Reel and a matching Story for Thursday. Keep the Reel caption short.”
Example prompt
“List what's scheduled on our Facebook Page this month and tell me which weeks have nothing.”
ChatGPT works through Wahlu's tools, so it can set the Facebook options Wahlu supports.
Wahlu posts to Facebook Pages, not personal profiles or groups, and a Page post carries one image or video rather than an album.
list_targetsFinds the brand's connected Facebook account and checks it's ready.
import_media_from_url, upload_media or list_mediaBrings in the image or video, or picks one from your media library.
create_draftCreates the draft with its caption and facebook_settings, such as the post type.
preflight_draftChecks the draft against Facebook's rules without changing it.
create_schedulePuts it on the calendar at pending_review, held for your approval.
Wahlu checks these before a post is scheduled, so the agent finds out early.
Page photos can be JPEG, BMP, PNG, GIF or TIFF, up to 10 MB.
Graph API: Page photosReels are 9:16 video between 3 and 90 seconds. Wahlu keeps Reel captions to 2,200 characters.
Meta: Reels publishingStory videos are 9:16, at least 540 × 960, between 3 and 60 seconds.
Meta: Page Stories APIMeta documents no caption limit for Page posts through the API; Wahlu uses Facebook's own composer limit of 63,206 characters.
Graph API: Page photosThe hosted connection can't open files on your computer. Give the agent a public link to import, pick from your brand's media library, or attach an image the agent can pass on as data. For video, a public link or your media library is usually easiest.
Set this up once and ChatGPT can work on every network you've connected, not just Facebook.
On chatgpt.com, open Settings → Security and login and turn on Developer mode.
Go to chatgpt.com/plugins and select the + button.
Name it Wahlu, paste https://mcp.wahlu.com/mcp as the MCP server URL and choose OAuth if asked how to authenticate.
Create the connection and sign in to Wahlu when asked.
Start a new conversation and add Wahlu from the tools menu.
Checked against the OpenAI developer docs on 24 September 2026. Menus can change; if a step doesn't match what you see, follow the vendor's current instructions.
Set this up on the ChatGPT website; the desktop apps don't have developer mode. Whether developer mode is available depends on your ChatGPT plan and workspace settings, and a workspace admin may need to allow it.
Every Wahlu plan includes agent access, through MCP and the API. You choose the workspace, brands and permissions each connection gets, and can disconnect it at any time.
Agents create schedules at pending_review unless you've told them to publish. A held schedule can't publish until you approve it in the Wahlu calendar.
Publish to social accounts is separate from Manage your schedule. Leave it unticked and nothing your agent schedules can go out on its own.
preflight_draft reports anything that would stop a post, such as media the network won't accept or a caption that's too long, without changing anything.
Queues, general edits to existing drafts, approvals and connecting social accounts happen in the Wahlu app, not through your agent.
Connect your Facebook account in Wahlu, then give ChatGPT a specific brief.