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PostHog MCP for Claude, ChatGPT and Cursor

Per-user funnels, retention and session replay: the questions GA4 cannot answer. Replays come back as links you open in PostHog.

PostHog Measurement · 7 things it can do · connect once, use it everywhere
7things it can do for you 6+apps you can run it from 1login, shared by every app Liveread and manage on the spot

The PostHog MCP from Hermoso is a hosted MCP server: connect PostHog once and Claude, ChatGPT, Cursor or any other assistant you use can work in your PostHog account for you. It is the same connection the Hermoso app uses, so you sign in once, and PostHog sits next to the rest of the marketing Hermoso runs on autopilot for you.

What Hermoso does with PostHog

Per-user funnels, retention and session replay: the questions GA4 cannot answer. Replays come back as links you open in PostHog.

HogQLInsightsSession replay

Just ask for it

Type it the way you would say it to a colleague. These are real things people ask for.

Find the session replays with console errors on the checkout page this week.

Look up this customer by email and show me what they did before they signed up.

Mark today on the PostHog timeline: the new landing page went live.

Everything Hermoso can do on PostHog

You say it in your own words. Here is what Hermoso can actually do on PostHog.

Publish and schedule

Create annotation

Read and measure

See annotationsSee projectsSee session recordingsSee insightSee personsSee query

Works wherever you already chat

It is one account, not one per app. Schedule something from Cursor and it shows up in your Hermoso calendar; draft a reply in Claude and it goes out from the same profile.

ClaudeChatGPTClaude CodeCursorCodexClineCLI

Set up the PostHog MCP

  1. Open the app, go to Workspace ▸ Connectors and connect PostHog. One authorisation covers the web app, the MCP server and the CLI.
  2. Add the Hermoso MCP server to your assistant. The URL is https://app.hermoso.ai/mcp. In Claude: Settings → Connectors → Add custom connector, paste the URL, then sign in on the consent page. In Claude Code: claude mcp add --transport http hermoso https://app.hermoso.ai/mcp. There is no key to paste; the connector signs in with OAuth.
  3. Ask for what you want in plain words. The PostHog tools are there with everything else Hermoso does.

Every other client and the CLI: MCP & CLI. Or see every channel we connect to.

Related

Other measurement channels: Google Analytics, Google Tag Manager, Google Search Console, Bing Webmaster Tools, HubSpot, Stripe, Mixpanel and Amplitude.

Frequently asked questions

Can an AI agent post to PostHog through Hermoso?

Yes. The PostHog surface is exposed over one OAuth'd MCP endpoint, so Claude, ChatGPT, Cursor, Codex, Cline and the CLI can all drive it once the account is connected.

Do I need a separate PostHog connection for the app and for MCP?

No. One authorisation covers the web app, the MCP server and the CLI. It is the same stored connection.

What is the PostHog MCP server URL?

https://app.hermoso.ai/mcp. It is one hosted server for every channel Hermoso connects to, so there is no separate PostHog server to install. Add it to your assistant as a custom connector and sign in with OAuth; no key to paste.

Start free with 30 credits at signup and every feature on every plan. Connecting, posting, scheduling and managing ads here is free; credits are spent only on AI models and Ad Spy research.

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