Plenty of LinkedIn posts start life in ChatGPT. Getting them from the chat onto LinkedIn at a sensible time is the fiddly bit. If you connect ChatGPT to a scheduler, you can skip the copy and paste: ask ChatGPT to queue the post, and it goes out on your schedule.
This guide uses PostHonk, a LinkedIn-only scheduler that ChatGPT can connect to as an app.
What you need
- Developer mode is available on paid ChatGPT plans. You'll switch it on in the first step below.
- A PostHonk account with your LinkedIn profile connected. Every plan starts with a free week; you can start one here.
Connect ChatGPT to PostHonk
Your PostHonk URL is https://posthonk.com/api/mcp. It's also on the Apps page once you're signed in. Then, in ChatGPT:
- 1Open Settings, then Apps, then Advanced settings, and turn on Developer mode.
- 2Back in Apps, choose Create app and name it PostHonk.
- 3Paste your PostHonk URL, set authentication to OAuth, then Create and sign in.
ChatGPT opens a PostHonk window where you approve the connection. That's it: PostHonk is now one of ChatGPT's apps.
Write and schedule a post
Draft as normal. When the post is ready, tell ChatGPT to use PostHonk:
It goes into the next free slot on your posting schedule. To pick the time yourself:
Manage your queue from the chat
Anything ChatGPT changes appears in your queue on posthonk.com straight away, so you can review it there too.
A simple weekly routine
- On Monday, paste your notes from last week into ChatGPT: wins, lessons, things you noticed.
- Ask for three post ideas, pick the best two, and refine them together.
- Ask ChatGPT to add both to PostHonk. Your schedule spreads them across the week.
Ten minutes on a Monday, and your LinkedIn takes care of itself until next week.
What ChatGPT can and can't do
The connection lets ChatGPT add, list, edit and remove posts in your PostHonk queue. It can't read your LinkedIn messages, feed or contacts. You can disconnect it at any time from ChatGPT's settings or PostHonk's Apps page.