Muse Code fails with a malformed settings file. Why?

The settings file must contain "schema_version": 1. Add it, and keep the postemi block under mcp_servers.

Which Postemi plans work with Muse?

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 Muse?

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

Can Muse 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.

Muse + Postemi

Schedule Social Media Posts with Muse

Ask Muse to create a Postemi connector, or add it to Muse Code
Draft, schedule and publish posts by asking
37 platforms, including X, LinkedIn, Instagram and TikTok

Add to Muse Start your free trial

Setup

How do I connect Postemi to Muse?

Meta has two products named Muse. The app connects through a custom connector it builds for you; Muse Code reads Postemi from its settings file.

1Connectabout a minute

Add Postemi to Muse

Send Muse this message. When it asks for the key, enter it in Muse's secure credential prompt, never in the chat.

Send this to Muse:

Create a custom connector for Postemi. It is an MCP server at https://mcp.postemi.com/mcp, and it takes my key as an Authorization: Bearer header.

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

2Asklive in Postemi

Then just ask Muse

Once connected, Muse 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 Muse may post to. Then create an MCP key on the Automations → Developers page.
2
In the Muse app: ask for a custom connector
Send Muse this message. When it asks for the key, enter it in Muse's secure credential prompt, never in the chat.
3
In Muse Code: add the server
Add the block to ~/.config/muse/settings.json. Keep schema_version: without it, every Muse Code command fails at startup.
4
Sign in to Muse Code
Run the login command. It opens Postemi's sign-in page, and Muse Code keeps the token fresh.

In Muse Code: add the server

~/.config/muse/settings.json

{
  "schema_version": 1,
  "mcp_servers": {
    "postemi": {
      "transport": "streamable_http",
      "url": "https://mcp.postemi.com/mcp"
    }
  }
}

terminal

muse mcp login postemi

One connection

One Muse connection powers every channel you run

Connect your accounts in Postemi once. From then on Muse 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 Muse 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 Muse at once.

Ways to connect

The Muse app or Muse Code?

Both can use Postemi. They connect in different ways.

	Muse appCustom connector	Muse CodeTerminal
Setup	Ask Muse to create a Postemi connector, then enter your key when it asks	A block in ~/.config/muse/settings.json, then muse mcp login
Needs	Meta Muse, in the US	Muse Code; schema_version 1 in the file
Sign-in	An MCP key from the Developers page, as a Bearer header, kept in Muse's credentials store	Your Postemi account in the browser, no key, or headers with a key
Best for	Asking for posts on the web or phone	Release posts from your code

Muse appCustom connector

Setup: Ask Muse to create a Postemi connector, then enter your key when it asks
Needs: Meta Muse, in the US
Sign-in: An MCP key from the Developers page, as a Bearer header, kept in Muse's credentials store
Best for: Asking for posts on the web or phone

Muse CodeTerminal

Setup: A block in ~/.config/muse/settings.json, then muse mcp login
Needs: Muse Code; schema_version 1 in the file
Sign-in: Your Postemi account in the browser, no key, or headers with a key
Best for: Release posts from your code

What it can do

What can Muse do with Postemi?

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

Draft, schedule or publish

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

Reads your calendar

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

Images and video

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

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

How Muse uses Postemi

Once Postemi is connected, Muse 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

Muse Code, with a key

"postemi": {
  "transport": "streamable_http",
  "url": "https://mcp.postemi.com/mcp",
  "headers": {
    "Authorization": "Bearer ${POSTEMI_MCP_KEY}"
  }
}
 
# 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

Muse 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 Muse to post?

Anything you would ask a teammate: name the platforms, the time and the tone, and Muse 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.

Release

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 Muse post to?

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

Good to know

Is Muse the same as Muse Code?

Both come from Meta, but they are separate products with separate setups. Either one can use the same Postemi account.

	Meta Muse	Meta Muse Code
What it is	Meta's personal agent app on the web and phone	Meta's coding agent for the terminal
How Postemi connects	A custom connector it builds, with a key	mcp_servers in settings.json
Best for	Everyday posting by asking	Release posts from your code

Meta Muse

What it is: Meta's personal agent app on the web and phone
How Postemi connects: A custom connector it builds, with a key
Best for: Everyday posting by asking

Meta Muse Code

What it is: Meta's coding agent for the terminal
How Postemi connects: mcp_servers in settings.json
Best for: Release posts from your code

AI agents

Frequently asked questions about Muse and Postemi

Not that you can install today. Ask Muse to create a custom connector with the Postemi MCP URL and your key.

Let Muse schedule your posts

Create an MCP key, connect Postemi, and ask Muse for your first post.

Add to Muse

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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