Posthog MCP Server

Name: Posthog MCP Server
Author: friendlygeorge

by friendlygeorgeversion 1.0.0i★ –iRuns on your computer

Registry nameio.github.friendlygeorge/posthog-mcp-server

Install

Overview

Description from the maker (original English)

MCP server for PostHog — product analytics for AI assistants. Query events, persons, insights, da...

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: Runs on your computer
Transport: stdio
Category: Marketing & social media

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

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 …”.

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

{
  "mcpServers": {
    "posthog": {
      "command": "npx",
      "args": [
        "-y",
        "posthog-mcp-server"
      ]
    }
  }
}

Run this in your terminal

claude mcp add posthog -- npx -y posthog-mcp-server

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "posthog": {
      "command": "npx",
      "args": [
        "-y",
        "posthog-mcp-server"
      ]
    }
  }
}

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": {
    "posthog": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "posthog-mcp-server"
      ]
    }
  }
}

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.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

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

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

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account friendlygeorge, 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 applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Marketing & social mediai

More stars than 0% of the other 2969 servers in this category
Published to the registry more recently than 12% of the other 2969 servers in this category
Basic checks equal to or better than 100% of the other 2969 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 Posthog MCP Server 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?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 5 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

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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.

PostHog MCP Server

Connect AI assistants to PostHog — query events, persons, insights, dashboards, feature flags, cohorts, and experiments through the Model Context Protocol.

Works with Claude Desktop, Cursor, Windsurf, Cline, Continue, and any MCP-compatible client.

Features

Tool	Description
`list_events`	Query events with filters (event name, person, date range, properties)
`get_person`	Get a person (user) by distinct_id — properties, creation date, event count
`list_persons`	Search and list persons with pagination
`list_dashboards`	List all dashboards — names, tags, widget counts
`get_dashboard`	Get a specific dashboard with its insights and widgets
`execute_insight`	Execute a saved insight (trend, funnel, etc.) and get results
`list_feature_flags`	List all feature flags — key, active status, rollout percentage
`evaluate_feature_flag`	Evaluate a flag for a specific user and get variant value
`list_cohorts`	List cohorts — name, type (dynamic/static/SQL), person count
`list_experiments`	List A/B tests — name, status, feature flag, dates
`get_experiment`	Get experiment results with variant data and statistical significance
`list_actions`	List custom event actions/definitions
`get_project_info`	Get project name, ID, settings, and data region

Quick Start

1. Get a PostHog API Key

Go to PostHog → Settings → Personal API Keys and create a key with read access.

Or visit: https://your-instance.posthog.com/settings/user-api-keys

2. Configure your MCP client

Claude Desktop — add to claude_desktop_config.json:

"mcpServers": { "posthog": { "command": "npx", "args": ["-y", "posthog-mcp-server"], "env": { "POSTHOG_API_KEY": "phx_YOUR_API_KEY_HERE", "POSTHOG_HOST": "https://us.i.posthog.com", "POSTHOG_PROJECT": "YOUR_PROJECT_ID" } } } }

Cursor — add to MCP settings (.cursor/mcp.json):

3. Run manually (for testing)

# Clone and build

git clone https://github.com/friendlygeorge/posthog-mcp-server.git cd posthog-mcp-server npm install npm run build

Run

POSTHOG_API_KEY=phx_... POSTHOG_PROJECT=12345 node dist/index.js

Environment Variables

Variable	Required	Default	Description
`POSTHOG_API_KEY`	✅	—	Your PostHog personal API key (`phx_...`)
`POSTHOG_HOST`	❌	`https://us.i.posthog.com`	PostHog instance URL (use `https://eu.i.posthog.com` for EU)
`POSTHOG_PROJECT`	❌	`""`	Default project ID. If empty, must be specified per-call.

Self-hosted PostHog

If you run PostHog on your own infrastructure, set POSTHOG_HOST to your instance URL:

POSTHOG_HOST=https://posthog.yourcompany.com

Example Queries

Once configured, ask your AI assistant:

*"Show me the last 20 pageview events"*
*"Who are the most active users this week?"*
*"What's the status of our signup conversion experiment?"*
*"Is the new-checkout-flow feature flag enabled for user abc123?"*
*"Show me all active dashboards"*
*"Execute insight 42 and show me the trend"*
*"List all feature flags that are currently active"*
*"How many people are in the 'Power Users' cohort?"*

API Reference

This server wraps the PostHog REST API (v1). Full documentation:

PostHog API docs: https://posthog.com/docs/api
MCP protocol: https://modelcontextprotocol.io
PostHog: https://posthog.com

Development

npm install

npm run dev # Build and run npm run build # Build only npm start # Run built output

Posthog MCP Server

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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

PostHog MCP Server

Features

Quick Start

1. Get a PostHog API Key

2. Configure your MCP client

3. Run manually (for testing)

Run

Environment Variables

Self-hosted PostHog

Example Queries

API Reference

Development

License