How does Claude Code use the Postemi MCP server?

The registration command is: claude mcp add posty --transport http . The Developers page gives you the ready command together with your key.

Can Claude Code use the CLI instead of MCP?

Yes. Install with npm install -g posty-cli, after which the executable is called posty. From the SKILL.md in the package, Claude Code handles the CLI with no extra training.

Which platforms can Postemi schedule to?

Postemi covers these platforms: Facebook, Instagram, TikTok, LinkedIn, X, YouTube, Threads, Discord, Bluesky, Telegram, Slack, and Pinterest (beta). Google Business Profile is coming soon, it cannot be connected yet. Claude writes the copy, and Postemi schedules it.

Does Postemi have a built-in AI copywriter?

No, on purpose. Your own model writes the copy. On this page, that model is Claude. Postemi handles the scheduling.

Which plans include MCP, the CLI, and the REST API?

All three access modes are part of the Pro, Creator and Team plans. No separate enterprise conversation is required.

Claude + Claude Code + Postemi: schedule with MCP

Quick start

Four commands to your first post

You install the CLI, sign in, fetch the integrations, then create the first post. From there, Claude Code can take over.

terminal

# Install the official CLI
$ npm install -g posty-cli
# Sign in to the Postemi account
$ posty auth:login
# Fetch the integrations
$ posty integrations:list
[{ "id": "cmf3k7…", "name": "Cafe · Instagram" }]
# Create the first post
$ posty posts:create \
$   -c "New brunch menu this Saturday." \
$   -i "cmf3k7…" \
$   -s "2026-08-16 09:00" --timezone Europe/Budapest
✅ Post created successfully!
{ "id": "cmf7p2…", "state": "QUEUE" }

The CLI writes JSON to standard output, and status and errors to standard error. A failed run exits with a non-zero code.

A thread, in a single command

terminal

$ posty posts:create \
$   -c "We shipped 2.0. Three things changed. 1/3" \
$   -c "The calendar is faster. 2/3" \
$   -c "And there is a dark theme at last. 3/3" \
$   -d 5 \
$   -i "cmf3k7…" \
$   -s "2026-08-16T09:00:00+02:00"

What Claude does

From the conversation to the calendar

Claude writes the copy, and Postemi schedules it. You can reach the same account via MCP, CLI, or REST API.

Copy from the session

Claude writes a post from the changelog you give it in the conversation, and a thread from the release notes. It hands the finished copy to Postemi for scheduling.

Media upload

posty upload uploads the image or video, then returns a URL. Claude uses that for the -m flag that follows -c.

Rearranging the calendar

Claude fetches the posts, finds a free slot, then rearranges the plan. It uses the posts:list, posts:find-slot, and posts:delete commands for this.

Second way: CLI

Claude Code can also use the posty command directly. From the bundled SKILL.md, it handles the full CLI with no extra training.

Third way: REST

The public REST API is available at api.posty.hu. You can manage the same Postemi account from your own workflow or program.

Approval in the calendar

Claude writes and schedules the post, and you check it in the Postemi calendar. Every send needs your approval.

How you connect it

Four steps from Claude to the calendar

You connect the social accounts once. After that, the Claude app and Claude Code use the same Postemi connection.

01

Connect the accounts

On the Postemi web app, you connect the social accounts you want to use via OAuth. You do this once per account, before the first schedule.

OAuth on the Postemi web app

terminal

$ posty integrations:list
[
  { "id": "cmf3k7…", "name": "Cafe · Instagram" },
  { "id": "cmf3k9…", "name": "Cafe · Facebook" }
]

02

Create a key

On the Automations → Developers page you create a key that starts with psty_mcp_…. You also get the details needed for the Claude MCP connection here.

Key on the Developers page

.env

# Automations → Developers → New key
# We show the key once, when you create it.
 
# For the command line and the REST API:
POSTY_API_KEY=YOUR_API_KEY
 
# MCP clients get a separate key:
# psty_mcp_…

03

Hand it to Claude

In the Claude app and in Cowork, under Settings, Connectors, you add a custom connector at https://api.posty.hu/mcp-oauth. Claude picks up the settings on its own. In Claude Code you install the Postemi plugin, or you add the server with a single command. Either way you sign in to Postemi in the browser. There is no key to copy.

Claude MCP registration with one command

Claude app and Claude Code

# Claude Code, the shortest path: the plugin, with browser login
claude plugin marketplace add norbertlevente/posty-agent
claude plugin install posty@posty-agent
 
# Or without the plugin, still with browser login (no key):
claude mcp add --transport http posty https://api.posty.hu/mcp-oauth
claude mcp login posty
 
# Claude app → Settings → Connectors, custom connector:
https://api.posty.hu/mcp-oauth
 
# With a key, for scripts and development:
https://api.posty.hu/mcp/YOUR_API_KEY

04

Check them in the calendar

Claude schedules the finished posts. You review and approve them in the Postemi calendar every time, before they go out to the selected platforms.

Scheduling and calendar review

terminal

$ posty posts:list
[
  { "id": "cmf7p2…", "state": "QUEUE",
    "publishDate": "2026-08-16T07:00:00Z" },
  { "id": "cmf7q8…", "state": "DRAFT",
    "publishDate": "2026-08-18T06:30:00Z" }
]

Claude in brief

What are Claude and Claude Code?

Claude is the Anthropic assistant. The Claude app works in the browser, on desktop, and on your phone. Claude Code works in the terminal, on your own files. Both schedule the finished content with Postemi.

In practice you show it the changelog or the release notes. Claude writes a post or a thread from that, then hands it to Postemi for scheduling in the same session. You never have to leave the terminal.

The Claude app reaches Postemi through a remote MCP connector. Claude Code registers the connection with the claude mcp add command, or uses the posty CLI directly from the bundled SKILL.md.

Claude app

An assistant you can use in the browser, on desktop, and on your phone. It connects to Postemi as a remote MCP connector, with the URL and developer key you are given.

Claude Code

It runs in the terminal and works on your own files. It schedules via MCP or directly with the Postemi CLI.

Clear roles

Claude writes the copy. Postemi schedules it, and you review and approve in the calendar before it goes out.

Built for agents

A predictable interface for Claude

Postemi returns a machine-readable response and a clear error signal. Claude can drive the same account three ways.

JSON on stdoutClaude can parse the JSON response of each command for the next step.
Clear errorsIt writes status and errors to stderr. A failed run exits with a non-zero code.
Bundled skill fileThe SKILL.md in the npm package tells Claude Code how to use the CLI.
Flat command setThe command set drives Postemi with no hidden state that survives between runs.
Three access modesYou can reach the same Postemi account directly via MCP, CLI, and REST API.

SKILL.md

---
name: posty
description: Posty schedules and publishes social posts
  from the command line.
homepage: https://posty.hu
---
 
# Output contract
 
Every command prints its JSON result, and nothing
else, to stdout; status lines, warnings and errors
go to stderr, and every failure exits 1.
 
# Two Hard Rules (Read First)
 
Rule 1: Authenticate before anything.
Rule 2: Every file passed to `-m` MUST first go
through `posty upload`.

SKILL.md is part of the posty-cli npm package. Claude Code reads it and handles the CLI with no extra training.

See how other agents connect to the same Postemi account.

Muse All AI integrations

Real commands

The full workflow in the terminal

The CLI creates a post, lists posts, finds a time slot, fetches status, uploads media, and shows analytics. Claude Code runs these directly.

Command

What it does

Posts

posty posts:createNew post: scheduled, as a draft, or published right away.

posty posts:listPosts in the given period. You can filter by client group too.

posty posts:delete <id>Delete a post by id.

posty posts:find-slot <id>The next free publishing time for a social account.

posty posts:status <id>Switch a post between draft and scheduled.

posty posts:missing <id>Content already on the platform for a post with a missing id.

posty posts:connect <id>Connect a post to content that is already published.

Social accounts

posty integrations:listConnected social accounts and their ids. This is what the -i flag needs.

posty integrations:groupsThe list of client groups, if you work with more than one brand.

posty integrations:settings <id>An account's settings schema, rules, length limit, and tools.

posty integrations:trigger <id> <method>Call a platform tool for extra data, for example to search for music.

Media and analytics

posty upload <file>Upload a media file. The URL you get back goes into the posts:create -m flag.

posty analytics:platform <id>A social account's stats going back the given number of days.

posty analytics:post <id>Performance of a single post.

Login and settings

posty auth:loginLog in with OAuth2 device authorization: the browser opens, you approve.

posty auth:logoutClear stored login data.

posty auth:statusShows whether you're logged in, and checks access too.

posty config:set <key> <value>Save a CLI setting, for example the default timezone.

posty config:get [key]Print the saved settings.

Flag

What it means

posts:create flags

-c, --contentThe post text. Repeat it to make a thread: the first is the post, the rest are comments.

-m, --mediaMedia for the -c that comes before it. The URL has to come from posty upload.

-i, --integrationsIds of the target social accounts, comma-separated.

--date, -sWhen to publish. Either with an explicit offset, or together with the --timezone flag.

--timezoneIANA timezone name, for example Europe/Budapest. Only pass a date with no offset together with this.

-t, --typeschedule (default), draft, or now.

-d, --delayDelay in MINUTES between items in the thread.

--jsonThe full post description from a JSON file, when the flags are not enough.

--settingsPlatform-specific settings as JSON. The schema comes from integrations:settings.

The CLI writes JSON to standard output, so Claude gets every command result in a machine-readable form.

Supported platforms

One account, every channel

Connect your accounts in a few clicks, then post to every channel from Postemi.

Fair pricing, no hidden costs

Every plan starts with a 7-day free trial. We bill in US dollars and issue a VAT invoice.

2 months free

Prices in US dollars. In Europe you pay the same amount in euros, in Switzerland in Swiss francs.

Basic

For solo creators new to scheduling

$13/mo

7-day free trial

$0 due today · Cancel anytime

5 social accounts
100 X posts a month
1 workspace
One user
Not included: Advanced image editor
Not included: Viral video + UGC templates
Not included: Automations
Not included: API access
Not included: Posting with an AI agent

Unlimited posts
Multiple accounts per platform
Scheduling
Calendar view
Repeated posts
Post delays
Studio access
Analytics (beta)
Post comments
Dark & light mode

Pro

Creator

For teams with several brands, plus image and video editors

$49/mo

7-day free trial

$0 due today · Cancel anytime

30 social accounts
400 X posts a month
5 workspaces
15 users
Advanced image editor
Viral video + UGC templates
Automations
API access
Posting with an AI agent

Unlimited posts
Multiple accounts per platform
Scheduling
Calendar view
Repeated posts
Post delays
Studio access
Analytics (beta)
Post comments
Dark & light mode

Team

Highest limits

For agencies managing many channels

$99/mo

7-day free trial

$0 due today · Cancel anytime

100 social accounts
800 X posts a month
Unlimited workspaces
Unlimited users
Advanced image editor
Viral video + UGC templates
Automations
API access
Posting with an AI agent

Unlimited posts
Multiple accounts per platform
Scheduling
Calendar view
Repeated posts
Post delays
Studio access
Analytics (beta)
Post comments
Dark & light mode

Post to

TikTok
Instagram
Facebook
Threads
LinkedIn
YouTube
X
Pinterest · beta
Bluesky
Google Business · coming soon
Discord
Telegram
Slack

FAQ

Common questions

In the Claude app, add https://api.posty.hu/mcp and your key as a remote MCP connector. You create the psty_mcp_… key on the Postemi Automations → Developers page.

The changelog becomes a post, in the terminal

Four commands to your first post

A thread, in a single command

From the conversation to the calendar

Copy from the session

Media upload

Rearranging the calendar

Second way: CLI

Third way: REST

Approval in the calendar

Four steps from Claude to the calendar

Connect the accounts

Create a key

Hand it to Claude

Check them in the calendar

What are Claude and Claude Code?

Claude app

Claude Code

Clear roles

A predictable interface for Claude

The full workflow in the terminal

One account, every channel

TikTok

Instagram

Facebook

Threads

LinkedIn

YouTube

X

Pinterest

Bluesky

Google Business

Discord

Telegram

Slack

Fair pricing, no hidden costs

Basic

Pro

Creator

Team

Common questions

How do I connect the Claude app to Postemi?

How does Claude Code use the Postemi MCP server?

Can Claude Code use the CLI instead of MCP?

Which platforms can Postemi schedule to?

Does Postemi have a built-in AI copywriter?

Which plans include MCP, the CLI, and the REST API?

Connect Claudeto Postemi.