Does it support stdio?

No. The server is hosted and speaks streamable HTTP only. Clients that need stdio can use a bridge such as mcp-remote.

Which tools does it have?

Tools to read your workspace and channels, check each channel's rules, preview, create and delete posts, read the calendar and add media. The full list is in the docs under MCP, Tools.

Which Postemi plans work with your agent?

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 your agent?

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

Can your agent 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.

MCP Server + Postemi

Schedule Social Media Posts with the Postemi MCP Server

One hosted URL for any MCP client
OAuth sign-in, or an MCP key as a Bearer header
20 platforms, including X, LinkedIn, Instagram and TikTok

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Setup

How do I connect Postemi to MCP Server?

If your agent speaks MCP over HTTP, it can use Postemi. Most clients need only the URL.

1Connectabout a minute

Add Postemi to MCP Server

Add a remote server with streamable HTTP transport. The shape differs by client; this is the common one.

mcp.json (most clients)

{
  "mcpServers": {
    "postemi": {
      "url": "https://mcp.postemi.com/mcp"
    }
  }
}

2Asklive in Postemi

Then just ask MCP Server

Once connected, MCP Server 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 your agent may post to.
2
Give your client the URL
Add a remote server with streamable HTTP transport. The shape differs by client; this is the common one.
3
Sign in, or send a key
Clients with OAuth open Postemi's sign-in page and register themselves. Clients without it send an MCP key from the Automations → Developers page.
4
Ask your agent
It lists your channels, checks the calendar and creates the post.

Request header

Authorization: Bearer YOUR_MCP_KEY

One connection

One MCP Server connection powers every channel you run

Connect your accounts in Postemi once. From then on MCP Server can post to any of them, 20 platforms today, without a separate setup per network.

Each account keeps its own rules and character limit, and MCP Server 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 MCP Server at once.

Ways to connect

OAuth or an MCP key?

Both reach the same tools. Use OAuth wherever the client supports it.

	OAuth sign-inRecommended	MCP keyScripts and servers
Setup	Add the URL; the client registers itself	Create a key on the Developers page, send it as a Bearer header
Needs	A client with OAuth support (most do)	A client that can send headers
Sign-in	Your Postemi account; tokens refresh on their own	The key, tied to one workspace
Best for	Chat apps and desktop agents	Servers, CI and clients without a browser

OAuth sign-inRecommended

Setup: Add the URL; the client registers itself
Needs: A client with OAuth support (most do)
Sign-in: Your Postemi account; tokens refresh on their own
Best for: Chat apps and desktop agents

MCP keyScripts and servers

Setup: Create a key on the Developers page, send it as a Bearer header
Needs: A client that can send headers
Sign-in: The key, tied to one workspace
Best for: Servers, CI and clients without a browser

What it can do

What can MCP Server do with Postemi?

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

Draft, schedule or publish

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

Reads your calendar

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

Images and video

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

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

How MCP Server uses Postemi

Once Postemi is connected, MCP Server 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

Discovery

# Server (streamable HTTP)
https://mcp.postemi.com/mcp
 
# Tool list, no sign-in needed
https://postemi.com/.well-known/mcp.json
 
# 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

MCP Server 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 MCP Server to post?

Anything you would ask a teammate: name the platforms, the time and the tone, and MCP Server 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 MCP Server post to?

Any account you connect in Postemi: 20 platforms today. Connect them once, then post to any of them by asking MCP Server.

Good to know

Is the MCP server the same as the CLI?

No, but both work on the same Postemi account. The MCP server needs nothing installed; the CLI fits into scripts and covers analytics.

	MCP Server	AI Agents CLI
What it is	A hosted server your agent connects to	The postemi command line tool
How Postemi connects	A URL, then a sign-in or a key	npm install -g postemi
Best for	Chat apps and agents without a shell	Scripts, CI and agents that run commands

MCP Server

What it is: A hosted server your agent connects to
How Postemi connects: A URL, then a sign-in or a key
Best for: Chat apps and agents without a shell

AI Agents CLI

What it is: The postemi command line tool
How Postemi connects: npm install -g postemi
Best for: Scripts, CI and agents that run commands

AI Agents CLI and Postemi

AI agents

Frequently asked questions about MCP Server and Postemi

Any client that supports remote MCP servers over streamable HTTP. Clients with a page here include ChatGPT, Claude, Claude Code, Codex, Cursor, Gemini, Grok Build, Kimi Code, OpenClaw, Hermes Agent, Manus, Perplexity Computer and Paperclip.

Connect any agent to your social accounts

One URL, a sign-in, and your agent can post to all Postemi channels.

Copy the setup

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.

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