01
Turn on Cloud MCP in Kaption
In WhatsApp Web with the Kaption extension (Chrome or Edge), open AI Assistants (MCP) › Cloud Bridge › Enable. In the Kaption desktop app, switch on Cloud MCP in Settings. Keep Kaption open while ChatGPT works.
MCP · ChatGPT
Schedule WhatsApp Channel posts with ChatGPT
Tell ChatGPT what to post and when. It drafts the updates, shows you the exact text, channel and time, and schedules them through Kaption once you say yes: one post, a week of up to 14, or the same update to up to 10 channels and communities.
MCP server address
https://mcp.kaptionai.com/mcpShort answer
How do I schedule posts to my WhatsApp Channel with ChatGPT?
Connect WhatsApp to ChatGPT with Kaption’s MCP server and ask “plan next week’s posts for my Bakery channel, one a day at 9 AM”. ChatGPT drafts them, lists each text and time, and schedules them after you confirm. Kaption posts each one from WhatsApp on your computer when it is due. It works in the Kaption app for Mac and Windows now, and in Chrome and Edge with the next extension update.
What do I need to do this in ChatGPT?
Kaption open on your computer (the extension in WhatsApp Web, in Chrome or Edge, or the Kaption desktop app) with Cloud MCP on, a Kaption account (every account starts with 60 days of Business, unlimited; after that, a plan with credits), and ChatGPT. Setup takes three steps:
- 02
Create the app in ChatGPT
Turn on Developer mode in Settings › Apps › Advanced settings (Connectors on some plans), click Create, name it WhatsApp, paste https://mcp.kaptionai.com/mcp and choose OAuth.
- 03
Sign in and pick it in a chat
Enter your phone number and the 6-digit code Kaption sends you on WhatsApp. Then pick the WhatsApp app from the tools menu in a ChatGPT conversation.
What should I ask ChatGPT?
Copy a prompt, paste it into ChatGPT and change the names to your own chats and contacts.
Draft three posts for my Bakery channel about this week’s specials and schedule them for Monday, Wednesday and Friday at 9 AM. Show me everything first.
Plan next week for my channel: one short post a day at 8 AM. List the texts and times before you schedule anything.
Post the same update to my two channels and the Neighbours community: “We’re closed on Monday for the holiday.” Let me confirm first.
Which channel posts are still waiting to go out? Cancel the one for Friday.
Turn this list of tips into a week of channel posts, one a day at 10 AM, and show me a table of text and time before you schedule them.
What can ChatGPT do here, and what can’t it?
It can
- List the channels you own, administer or follow, and read the latest posts of one.
- Post a text update now, or schedule it for a set date and time, in a channel you own or administer.
- Schedule up to 14 posts in one request, or send the same post to up to 10 channels and communities, spaced at least 2 minutes apart.
- Show what is still waiting, cancel a waiting post, create a channel, or change its name and description.
- Work wherever your ChatGPT plan and workspace allow custom MCP apps. If you don’t see Developer mode, ask your workspace admin or check OpenAI’s help center.
It can’t
- Post images, videos, polls or other media: channel posts are text only.
- Show views or other channel insights, invite admins, or delete a channel.
- Post without asking. ChatGPT shows you the exact text, channels and times first, and a scheduled post is not proof it went out.
- Post while your computer is off. Posts go out from WhatsApp on your computer, so keep Kaption open at the scheduled time.
What leaves my computer?
Scheduled posts wait in Kaption on your computer and go out from your WhatsApp there. ChatGPT sees your channel names, the recent posts it reads and the texts you agree on.
Kaption’s relay at mcp.kaptionai.com checks your sign-in and passes each request to Kaption on your computer, which runs it against your WhatsApp and sends back only the answer; the relay does not keep your chats. What comes back, such as message text, names and numbers, goes to ChatGPT, which handles it under its own privacy terms. Locked chats are never visible to the assistant, and you can disconnect at any time.
How many credits does my plan include?
Claude and ChatGPT are unlimited in every account’s first 60 days; after that they need a plan: Lifetime local AI 20 actions a week, Pro 250 credits a month, and Business 500 with its 2 numbers plus 250 for each extra number, shared by all its numbers, the plan to pick when an assistant uses WhatsApp every day. Business Agent includes them with fair use. A read uses 1 credit, a send 2 and a summary 3. See plans and prices
Questions
Will ChatGPT post to my channel without asking?
No. Before any post, schedule or change, ChatGPT shows you the exact text, the channels and the times, and waits for your yes. Posting also needs “Assistants can send messages” turned on in Kaption, with sending “From this computer”.
Where does this work today?
In the Kaption app for Mac and Windows, version 0.97.0 or newer. In WhatsApp Web with the Chrome or Edge extension, it comes with the next extension update.
How do I know a post went out?
Scheduling is not proof of delivery. Ask ChatGPT which channel posts are still waiting, missed or failed, or open the channel in WhatsApp to check.
Which ChatGPT plan do I need?
One that lets you add a custom MCP app with developer mode. OpenAI changes which plans and workspaces allow it, so if the option is missing, check OpenAI’s help center or ask your workspace admin.
Connect WhatsApp to ChatGPT
Turn on Cloud MCP in Kaption, add the address to ChatGPT and sign in with a code on WhatsApp.
Set up WhatsApp in ChatGPT