Postbase

Name: Postbase
Author: postbasehq

by postbasehqversion 0.3.0i★ –iComputer or cloud

Registry nameio.github.postbasehq/postbase

Install

Overview

Description from the maker (original English)

Schedule social posts, threads and video to X, LinkedIn, Bluesky, Mastodon and YouTube from your AI.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Marketing & social media
You need to fill in: POSTBASE_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: POSTBASE_API_KEY, POSTBASE_API_URL

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.postbase.so/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "postbase": {
      "command": "npx",
      "args": [
        "-y",
        "@postbasehq/mcp"
      ],
      "env": {
        "POSTBASE_API_KEY": "your-value",
        "POSTBASE_API_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http postbase https://mcp.postbase.so/mcp

Or run it on your computer

claude mcp add postbase --env POSTBASE_API_KEY=your-value --env POSTBASE_API_URL=your-value -- npx -y @postbasehq/mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "postbase": {
      "url": "https://mcp.postbase.so/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "postbase": {
      "command": "npx",
      "args": [
        "-y",
        "@postbasehq/mcp"
      ],
      "env": {
        "POSTBASE_API_KEY": "your-value",
        "POSTBASE_API_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "postbase": {
      "type": "http",
      "url": "https://mcp.postbase.so/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "postbase": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@postbasehq/mcp"
      ],
      "env": {
        "POSTBASE_API_KEY": "your-value",
        "POSTBASE_API_URL": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.postbase.so/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

POSTBASE_API_KEY secret required env
API key from Postbase → Developers
POSTBASE_API_URL env
API base URL, for self-hosted instances (default https://www.postbase.so/api/v1)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account postbasehq, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Marketing & social mediai

More stars than 0% of the other 2954 servers in this category
Published to the registry more recently than 53% of the other 2954 servers in this category
Basic checks equal to or better than 100% of the other 2954 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Postbase safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: POSTBASE_API_KEY

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.3.0) reached the registry 27 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: MCP YouTube Transcript, Google Analytics MCP, BibiGPT YouTube Video Summarizer

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@postbasehq/mcp

The Model Context Protocol server for Postbase, the open-source social media scheduler. Add it to Claude, Cursor or any MCP client and let your AI agent draft and schedule posts and threads to X, LinkedIn, Bluesky and Mastodon. (TikTok and YouTube need a video, so schedule those in the app.)

Post everywhere. Even from your AI.

Hosted server (no API key)

Postbase also runs this server for you at https://mcp.postbase.so/mcp, with OAuth sign-in instead of an API key. Add that URL as a custom connector in Claude or ChatGPT, or as a remote MCP server in Cursor, VS Code, Windsurf, Claude Code or Gemini CLI. The MCP config generator prints the exact setup for each one.

Use this npm package when you want an API key instead, or a self-hosted Postbase.

Quick start

Create an API key in your Postbase dashboard under Developers.
Add the server to your MCP client config (see examples below).
Ask your agent: _"Schedule this thread for 9am to X and Bluesky."_

Example configs

Any MCP client — the minimal config:

"mcpServers": { "postbase": { "command": "npx", "args": ["@postbasehq/mcp"], "env": { "POSTBASE_API_KEY": "pb_live_your_key_here" } } } }

Claude Desktop — add the same block to your config file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

Then restart Claude Desktop.

Cursor — add it to ~/.cursor/mcp.json (or Settings → MCP):

"mcpServers": { "postbase": { "command": "npx", "args": ["@postbasehq/mcp"], "env": { "POSTBASE_API_KEY": "pb_live_your_key_here" } } } }

Local development — point at a Postbase instance running on your machine:

"mcpServers": { "postbase": { "command": "npx", "args": ["@postbasehq/mcp"], "env": { "POSTBASE_API_KEY": "pb_live_your_key_here", "POSTBASE_API_URL": "http://localhost:3000/api/v1" } } } }

Tools

Tool	What it does
`list_channels`	List the channels connected to your workspace.
`create_post`	Create a draft, or schedule a post or `thread`: `channel_ids`, `scheduled_at` (ISO 8601 with an offset) or `schedule_in_minutes`, `channel_bodies` for per-channel text, `media_ids` or `media_urls`, `youtube` details, and an `idempotency_key` so retries can't post twice. TikTok posts can only be drafts.
`get_post`	How a post went on each channel: status, live URL, error, retry time and latest metrics.
`update_post`	Edit or reschedule a draft or scheduled post; only the fields you pass change.
`retry_post`	Send a post again to the channels where it failed.
`get_analytics`	Impressions, likes, comments, shares and saves per post and channel, with totals.
`list_media`	List images and videos in your Postbase media library, to attach by id.
`add_media`	Add an image or video to the media library from a public https link.
`list_scheduled`	List scheduled posts, or drafts, published or failed ones with `status`.
`cancel_post`	Cancel a scheduled post by id (it goes back to a draft).
`schedule_thread`	Create a thread (`tweets` in order). Kept for older setups; `create_post` with `thread` does the same.

Environment

Variable	Required	Default
`POSTBASE_API_KEY`	yes	—
`POSTBASE_API_URL`	no	`https://www.postbase.so/api/v1`

For local development against a Postbase instance on your machine, set POSTBASE_API_URL=http://localhost:3000/api/v1.

License

AGPL-3.0-or-later. Part of the open-source Postbase project.

Postbase

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Marketing & social mediai

Common questions

Alternatives

MCP YouTube Transcript

Google Analytics MCP

BibiGPT YouTube Video Summarizer

README from the maker

@postbasehq/mcp

Hosted server (no API key)

Quick start

Example configs

Tools

Environment

License