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DeepSeekDeepSeek + Postemi

Schedule Social Media Posts with DeepSeek

  • Connect DeepSeek Harness to the Postemi MCP server
  • DeepSeek drafts and schedules posts by asking
  • 20 platforms, including X, LinkedIn, Instagram and TikTok
Add to DeepSeek HarnessStart your free trial

The DeepSeek chat app on the web and phone cannot connect to outside tools. This page is about DeepSeek Harness, DeepSeek's open source agent.

Setup

How do I connect Postemi to DeepSeek?

DeepSeek Harness (dsh) is in developer preview. It adds MCP servers through a small YAML patch.
1Connectabout a minute

Add Postemi to DeepSeek

Merge this entry into $DSH_HOME/cordis.patch.yml (or a profile's patch file). Do not overwrite a file you already have.

$DSH_HOME/cordis.patch.yml
- insert:
    - id: postemi
      name: '@deepseek-ai/dsh-mcp-client'
      config:
        serverName: postemi
        transport: streamable-http
        url: https://mcp.postemi.com/mcp
        headers:
          Authorization: Bearer YOUR_MCP_KEY

The DeepSeek chat app on the web and phone cannot connect to outside tools. This page is about DeepSeek Harness, DeepSeek's open source agent.

2Asklive in Postemi

Then just ask DeepSeek

Once connected, DeepSeek 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.
DeepSeek

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 DeepSeek may post to.

  2. 2

    Create an MCP key

    On Postemi's Automations → Developers page, create an MCP key. It starts with psty_mcp_, and we show it once.

  3. 3

    Add the server to your patch file

    Merge this entry into $DSH_HOME/cordis.patch.yml (or a profile's patch file). Do not overwrite a file you already have.

  4. 4

    Start DeepSeek Harness

    Run dsh, wait for the postemi tools to appear, then ask for a post.

Start DeepSeek Harness
terminal
npx @deepseek-ai/dsh web
One connection

One DeepSeek connection powers every channel you run

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

Which DeepSeek can post?

Only the agent can use outside tools.
DeepSeek HarnessWorks
Setup
A dsh-mcp-client entry in your Cordis patch file
Needs
Node.js; developer preview
Sign-in
An MCP key from the Developers page, as a Bearer header
Best for
Developers who want DeepSeek models
DeepSeek chat appCannot connect
Setup
Not possible: the app has no connectors or MCP
Needs
Not available
Sign-in
Not available
Best for
Writing a post you then paste into Postemi
What it can do

What can DeepSeek do with Postemi?

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

Draft, schedule or publish

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

Reads your calendar

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

Images and video

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

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

How DeepSeek uses Postemi

Once Postemi is connected, DeepSeek 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

Request header
POST https://mcp.postemi.com/mcp
Authorization: Bearer YOUR_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

DeepSeek 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 DeepSeek to post?

Anything you would ask a teammate: name the platforms, the time and the tone, and DeepSeek 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.
ThreadX
A thread on X
Turn this blog post into a five part thread on X and schedule it for Tuesday at 17:00.
CalendarFacebookThreads
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 DeepSeek post to?

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

Is DeepSeek Harness the same as the DeepSeek app?

Same company and models, different products. Only the Harness can talk to Postemi.
DeepSeek Harness
What it is
An open source agent from deepseek-ai that runs on your computer
How Postemi connects
An MCP server entry with an MCP key
Best for
Scheduling posts with DeepSeek models
DeepSeek app
What it is
The chat assistant on the web and phone
How Postemi connects
It cannot connect
Best for
Writing drafts by hand

DeepSeek models can also run inside other agents, such as Claude Code, which then use their own Postemi connection.

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 DeepSeek and Postemi

No. The chat app has no connectors, plugins or MCP support. Use DeepSeek Harness, or copy the post into Postemi yourself.

Let DeepSeek schedule your posts

Create an MCP key, add Postemi to DeepSeek Harness, and ask for your first post.

Add to DeepSeek Harness
Get started today

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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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