Is there a Postemi plugin in ChatGPT's directory?

Not yet. Add Postemi as a custom MCP server: it is the same server with the same tools, and it takes a minute.

Can ChatGPT post a photo or video from my computer?

Yes. Ask for an upload link: ChatGPT gives you a page where you drop the file, then it attaches the file to the post.

Which Postemi plans work with ChatGPT?

MCP, the CLI and the REST API are part of the Pro, Creator and Team plans. Every plan starts with a 7-day free trial.

Does Postemi write the posts, or does ChatGPT?

ChatGPT writes them. Postemi has no built-in AI writer, on purpose: it connects your accounts, schedules and publishes.

Can ChatGPT publish without asking me?

It can, if you tell it to post now. Ask for drafts or scheduled posts instead, and check them in the Postemi calendar, where you can edit, move or delete them before they go out.

ChatGPT + Postemi

Schedule Social Media Posts with ChatGPT

Add Postemi as a custom MCP server in ChatGPT
Draft, schedule and publish posts by asking
37 platforms, including X, LinkedIn, Instagram and TikTok

Add to ChatGPT Start your free trial

Setup

How do I connect Postemi to ChatGPT?

One URL and a browser sign-in. You add it once, and ChatGPT keeps it as a plugin in your account.

1Connectabout a minute

Add Postemi to ChatGPT

On chatgpt.com/plugins, choose the plus button, then "Add custom MCP server". Enter the URL, pick OAuth, and choose "Create as a plugin". Your account or workspace settings decide whether you can add one.

ChatGPT → Plugins → Add custom MCP server

# Name
Postemi
 
# URL
https://mcp.postemi.com/mcp
 
# Authentication
OAuth: sign in to Postemi in the browser

Needs the Pro plan or higher. Every plan starts with a 7-day free trial.

2Asklive in Postemi

Then just ask ChatGPT

Once connected, ChatGPT calls the Postemi tools. Scheduled posts go out on time, even after you close the chat.

Schedule a post to X and LinkedIn for tomorrow at 9:00 announcing our new feature. Keep it short.

Done. I found your X and LinkedIn accounts and scheduled both posts for 9:00 tomorrow. Want me to save a version for Instagram as a draft too?

via Postemi

Also try

List my connected channels
Plan a week of posts about our launch
Save this as a draft instead

1
Connect your social accounts in Postemi
Sign in to Postemi and connect the accounts you want ChatGPT to post to. You do this once, in Postemi itself.
2
Add a custom MCP server
On chatgpt.com/plugins, choose the plus button, then "Add custom MCP server". Enter the URL, pick OAuth, and choose "Create as a plugin". Your account or workspace settings decide whether you can add one.
3
Sign in to Postemi
ChatGPT opens Postemi's sign-in page. Sign in with your Postemi account and pick a workspace. There is no key to copy.
4
Ask ChatGPT
Type @ to pick the plugin, then ask in plain words. Or paste this sentence, and ChatGPT reads the setup from this page.

Ask ChatGPT

Paste this to ChatGPT:

Help me add Postemi as a custom MCP server (https://mcp.postemi.com/mcp) and schedule my posts with its tools. Details: https://postemi.com/ai/chatgpt

One connection

One ChatGPT connection powers every channel you run

Connect your accounts in Postemi once. From then on ChatGPT can post to any of them, 37 platforms today, without a separate setup per network.

Each account keeps its own rules and character limit, and ChatGPT reads them first.
One request can go to several platforms, with the text adapted to each.
New accounts you connect in Postemi show up for ChatGPT at once.

Ways to connect

A custom MCP server or a directory plugin?

Today Postemi connects to ChatGPT as a custom MCP server.

	Custom MCP serverWorks today	Directory pluginNot listed yet
Setup	Plugins, plus button, Add custom MCP server, paste the URL, choose OAuth	ChatGPT installs plugins from its directory
Needs	Your account or workspace must allow custom MCP servers	A Postemi listing, which does not exist yet
Sign-in	Your Postemi account in the browser, no key	Not available
Best for	Everyone, today	Later: we will update this page

Custom MCP serverWorks today

Setup: Plugins, plus button, Add custom MCP server, paste the URL, choose OAuth
Needs: Your account or workspace must allow custom MCP servers
Sign-in: Your Postemi account in the browser, no key
Best for: Everyone, today

Directory pluginNot listed yet

Setup: ChatGPT installs plugins from its directory
Needs: A Postemi listing, which does not exist yet
Sign-in: Not available
Best for: Later: we will update this page

What it can do

What can ChatGPT do with Postemi?

ChatGPT gets the same Postemi tools in every workspace it connects to. It writes; Postemi schedules and publishes.

Draft, schedule or publish

ChatGPT creates a post as a draft, schedules it for a time you name, or publishes it right away. Ask for a draft when you want to check it first.

Preview per account

Before it creates anything, ChatGPT can show what would go out on each account: the text, the media and the character count.

Reads your calendar

ChatGPT sees what is already scheduled, in your time zone, so it can find a free slot or move a post.

Knows each platform's rules

Postemi tells ChatGPT the character limit and the options of every connected account before it writes.

Images and video

ChatGPT adds media from a link, or gives you an upload link for a file on your own computer.

Workspaces and client groups

If you manage several brands, ChatGPT lists your workspaces and client groups and works in the one you pick.

The MCP server

What is the Postemi MCP?

MCP (Model Context Protocol) is an open standard that lets an AI agent use outside tools. Postemi runs a hosted MCP server at https://mcp.postemi.com/mcp. ChatGPT connects to it, and from then on it can list your channels, read your calendar and create posts in your Postemi account.

The server runs on Postemi's side, so there is nothing to install for it. You sign in to Postemi in the browser, or use an MCP key, and that decides the workspace ChatGPT works in. Your social accounts stay connected in Postemi itself: ChatGPT never sees their passwords.

Postemi has no built-in AI writer, on purpose. ChatGPT writes the posts, Postemi schedules and publishes them.

How ChatGPT uses Postemi

Once Postemi is connected, ChatGPT finds the tools by itself and calls them when you ask for a post.

Reads your connected accounts and each one's rules
Checks the calendar and your time zone before it picks a time
Can show a preview per account before it creates a post
Saves a draft, schedules, or publishes now, as you asked
Adds images and video from a link, or from an upload link you open

Server URL

https://mcp.postemi.com/mcp

ChatGPT custom MCP server

Type: Custom MCP server
Name: Postemi
URL:  https://mcp.postemi.com/mcp
Auth: OAuth
 
# Tools it gets:
# list_integrations      connected accounts
# get_integration_schema  rules and limits
# list_posts              the calendar
# preview_post            what would go out
# create_post             draft, schedule, publish
# delete_post             remove an unpublished post
# upload_media_from_url   add an image or video
# create_upload_link      upload from your computer

Your AI agent can run your social calendar

ChatGPT schedules your next post

create_post

ChatGPT, Claude, Cursor and Codex sign in with your Postemi account. Manus, DeepSeek Harness and NanoClaw use an MCP key.

MCP setup Tool reference Read the docs

Example prompts

What can you ask ChatGPT to post?

Anything you would ask a teammate: name the platforms, the time and the tone, and ChatGPT handles the rest.

Content calendar

Plan a week

Look at my Postemi calendar for next week and suggest three LinkedIn posts for the empty days. Save them as drafts.

Announcement

Ship a launch post

Write a short announcement for our new product and schedule it on X, LinkedIn and Instagram for Thursday at 9:00. Adapt the length to each platform.

Visual post

Post your own photo

Give me an upload link for a photo, then schedule an Instagram post with it for Saturday at 10:00.

Calendar

Rearrange the week

What is scheduled on my social accounts this week? Move Friday's post to Monday at 18:00.

Platforms

Which platforms can ChatGPT post to?

Any account you connect in Postemi: 37 platforms today. Connect them once, then post to any of them by asking ChatGPT.

Good to know

Is ChatGPT the same as Codex?

No. Both come from OpenAI and can use the same Postemi account, but they connect in different places: ChatGPT through a custom MCP server, Codex through its config file or the CLI.

	ChatGPT	Codex
What it is	OpenAI's assistant on chatgpt.com and its apps	OpenAI's coding agent in your terminal, IDE and the ChatGPT desktop app
How Postemi connects	A custom MCP server	codex mcp add, or the postemi CLI
Best for	Planning and writing posts in a conversation	Release posts from your code, scripts and CI

ChatGPT

What it is: OpenAI's assistant on chatgpt.com and its apps
How Postemi connects: A custom MCP server
Best for: Planning and writing posts in a conversation

Codex

What it is: OpenAI's coding agent in your terminal, IDE and the ChatGPT desktop app
How Postemi connects: codex mcp add, or the postemi CLI
Best for: Release posts from your code, scripts and CI

Want an always-on agent instead? OpenAI dots use the plugins of your ChatGPT account. Codex and Postemi

AI agents

Frequently asked questions about ChatGPT and Postemi

OpenAI decides which plans and regions get custom MCP servers, and workspace admins can turn them off. Postemi cannot promise that it works on every plan.

Let ChatGPT run your social media calendar

Add the Postemi MCP server, sign in, and ask for your first post.

Add to ChatGPT

Get started today

Grow your audience,not your workload

Postemi brings your social accounts together in one calendar, so you can spend more time on your leads and your business. Don't let managing your accounts take up ten hours a week.

Pricing Start your free trial