X (Twitter)LinkedInGitHubDiscordYouTube

How to connect PostHog MCP to Claude

Connect Claude Web, Desktop and Cowork to PostHog MCP. List active feature flags and their rollout, summarize experiment results for signup flow, and more using natural language, with authentication handled for you.

Create my free accountGet a demo
PostHog MCP logoPostHog MCP
Dcr Oauth

PostHog is a product analytics platform for tracking user behavior, feature flags, experiments, and errors. Use it to understand product metrics, validate features, and surface issues quickly.

1 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your PostHog account to Claude via Composio Connect, enabling it to list active feature flags and their rollout, summarize experiment results for signup flow, get recent error events with stack traces, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate PostHog MCP with

ChatGPTHermes

Connecting PostHog to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your PostHog account

Back in Claude, ask it to connect to PostHog or give it any PostHog-related task.

For example, ask Claude to:

  • "List active feature flags and their rollout"
  • "Summarize experiment results for signup flow"
  • "Get recent error events with stack traces"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your PostHog account is ready to use.

What is the PostHog Claude Connector, and what's possible with it?

The PostHog MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your PostHog account. It provides structured and secure access so your agent can perform PostHog operations on your behalf.

Troubleshooting

1. Why does Claude not use the Composio connector for PostHog?

The connector can show as connected, but Claude must use it in each PostHog conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to PostHog again.

2. Why does Claude show an MCP server error before PostHog connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for PostHog.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect PostHog.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the PostHog authorization link not work?

The Composio connector is one server. Your PostHog account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the PostHog connection.
  • Composio creates a fresh PostHog authorization link.
  • Open that link in your browser and finish the PostHog sign-in.

4. Why do PostHog actions fail after they worked before?

The PostHog connection can expire or lose permission.

  • Ask Claude to inspect the PostHog connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the PostHog account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in PostHog.
  • If the action still fails with a permission error, check that the connected account has that permission in PostHog itself.

5. How do I switch to a different PostHog account?

Claude can manage the PostHog connection for you.

  • Ask Claude to disconnect or delete the current PostHog account.
  • Ask Claude to connect PostHog again.
  • Open the new Composio authorization link for PostHog.
  • Sign in with the other PostHog account in the browser.
  • After the account connects, ask Claude to retry the PostHog task.

6. Why is my PostHog connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your PostHog connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If PostHog tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect PostHog.
TOOLS

Supported Tools

Every PostHog MCP action and event your agent gets out of the box.

Exec

### Using the `posthog` tool PostHog makes your product self-driving: it reads your data and ships changes with you, never without you.

FRAMEWORKS

How to build PostHog MCP Agent with another framework

ChatGPT logo

ChatGPT

Use PostHog MCP with ChatGPT

Hermes logo

Hermes

Use PostHog MCP with Hermes

FAQ

Frequently asked questions

With a standalone PostHog MCP server, the agents and LLMs can only access a fixed set of PostHog tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from PostHog and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Claude Cowork fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right PostHog tools.

Yes, absolutely. You can configure which PostHog scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your PostHog data and credentials are handled as safely as possible.

Start with PostHog MCP.It takes 30 seconds.

Managed auth, hosted MCP servers, and every PostHog MCP tool your agent needs.Free to start.

Start building