Skip to content
Postemi
Sign inStart free
GeminiGemini + Postemi

Schedule Social Media Posts with Gemini

  • Add Postemi as a custom app in Gemini, or to Gemini CLI
  • Draft, schedule and publish posts by asking
  • 37 platforms, including X, LinkedIn, Instagram and TikTok
Add to GeminiStart your free trial

Custom apps in the Gemini app are available to personal Google accounts in the US, in English, for now.

Setup

How do I connect Postemi to Gemini?

In the Gemini app you add Postemi under Connected Apps. In the terminal, Gemini CLI and Antigravity CLI read it from a settings file.
1Connectabout a minute

Add Postemi to Gemini

On gemini.google.com, open Settings, Connected Apps, and choose "Add a custom app". Paste the URL, select Next and sign in to Postemi. It then works in the mobile app too.

Gemini → Settings → Connected Apps → Add a custom app
# Name
Postemi
 
# MCP server URL
https://mcp.postemi.com/mcp
 
# Authentication
OAuth: you sign in to Postemi in the browser

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

Custom apps in the Gemini app are available to personal Google accounts in the US, in English, for now.

2Asklive in Postemi

Then just ask Gemini

Once connected, Gemini 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.
Gemini

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 PostemiXLinkedIn
Also try
  • List my connected channels
  • Plan a week of posts about our launch
  • Save this as a draft instead
  1. 1

    Connect your social accounts in Postemi

    Sign in to Postemi and connect the accounts Gemini may post to.

  2. 2

    In the Gemini app: add a custom app

    On gemini.google.com, open Settings, Connected Apps, and choose "Add a custom app". Paste the URL, select Next and sign in to Postemi. It then works in the mobile app too.

  3. 3

    In Gemini CLI: add the server

    Add the block to ~/.gemini/settings.json, restart Gemini CLI, then run /mcp auth postemi to sign in.

  4. 4

    In Antigravity CLI: the same, another file

    Antigravity CLI uses serverUrl instead of httpUrl, and signs you in when it first connects.

In Gemini CLI: add the server
~/.gemini/settings.json
{
  "mcpServers": {
    "postemi": {
      "httpUrl": "https://mcp.postemi.com/mcp"
    }
  }
}
In Antigravity CLI: the same, another file
~/.gemini/config/mcp_config.json
{
  "mcpServers": {
    "postemi": {
      "serverUrl": "https://mcp.postemi.com/mcp"
    }
  }
}
One connection

One Gemini connection powers every channel you run

Connect your accounts in Postemi once. From then on Gemini 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 Gemini 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 Gemini at once.
Ways to connect

The Gemini app or the command line?

All of them reach Postemi's MCP server with a browser sign-in.
Gemini appUS only for now
Setup
Settings, Connected Apps, Add a custom app, paste the URL
Needs
18 or older, in the US, personal Google account, Keep Activity on
Sign-in
Your Postemi account in the browser, no key
Best for
Asking for posts on the web or phone
Gemini CLITerminal
Setup
A block with httpUrl in ~/.gemini/settings.json, then /mcp auth
Needs
Gemini CLI access (Google moved unpaid users to Antigravity in June 2026)
Sign-in
Your Postemi account in the browser, no key
Best for
Developers already on Gemini CLI
Antigravity CLITerminal
Setup
A block with serverUrl in ~/.gemini/config/mcp_config.json
Needs
Antigravity CLI
Sign-in
Your Postemi account in the browser, no key
Best for
Google's newer terminal agent
What it can do

What can Gemini do with Postemi?

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

Draft, schedule or publish

Gemini 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, Gemini can show what would go out on each account: the text, the media and the character count.

Reads your calendar

Gemini 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 Gemini the character limit and the options of every connected account before it writes.

Images and video

Gemini 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, Gemini 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. Gemini 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 Gemini works in. Your social accounts stay connected in Postemi itself: Gemini never sees their passwords.

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

How Gemini uses Postemi

Once Postemi is connected, Gemini 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

Gemini custom app
# Name
Postemi
 
# MCP server URL
https://mcp.postemi.com/mcp
 
# Authentication
OAuth: you sign in to Postemi in the browser
 
# 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

Gemini 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 setupTool referenceRead the docs
Example prompts

What can you ask Gemini to post?

Anything you would ask a teammate: name the platforms, the time and the tone, and Gemini handles the rest.
Content calendarLinkedIn
Plan a week
Look at my Postemi calendar for next week and suggest three LinkedIn posts for the empty days. Save them as drafts.
AnnouncementXLinkedInInstagram
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 postInstagram
Post your own photo
Give me an upload link for a photo, then schedule an Instagram post with it for Saturday at 10:00.
ReleaseXLinkedIn
Release notes to posts
Read CHANGELOG.md and write a post about the latest release. Schedule it on X and LinkedIn for tomorrow at 9:00, as drafts.
Platforms

Which platforms can Gemini post to?

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

Is the Gemini app the same as Gemini CLI?

Same family of models, different places to set them up. A custom app in the Gemini app does not appear in the CLI. Both can use the same Postemi account.
Gemini app
What it is
Google's assistant on the web and phone
How Postemi connects
A custom app under Connected Apps
Best for
Posts by asking, on any device
Gemini CLI and Antigravity CLI
What it is
Google's agents for the terminal
How Postemi connects
A block in their settings file
Best for
Release posts from your code
AI agents

Other AI agents that post through Postemi

The same Postemi account works with every agent below. Each page shows the exact setup.
FAQ

Frequently asked questions about Gemini and Postemi

Google offers them to people who are 18 or older, in the US, signed in with a personal Google account, with Keep Activity on. Work and school accounts cannot add them yet.

Let Gemini fill your social calendar

Add Postemi as a custom app or in the CLI, and ask for your first post.

Add to Gemini
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.

PricingStart your free trial