PostHog

What is PostHog?

Product analytics suite with session replay, feature flags, experiments, surveys and error tracking.

Who is PostHog best for?

PostHog is best for product engineers at startups who want analytics, session replay and feature flags in one tool.

• One tool instead of five

  Product and web analytics, session replay, feature flags, experiments, surveys and error tracking share the same user data.

• Rolling out features safely

  Feature flags release a change to chosen users or cohorts, and experiments measure its effect on your goal metrics.

• Teams building LLM apps

  AI observability captures traces, latency and cost for model calls and runs LLM-as-a-judge evaluations.

• Early-stage budgets

  Every product has a monthly free allowance, and per-product billing limits stop a traffic spike from becoming a surprise bill.

How much does PostHog cost?

PostHog is free to self-host under MIT, and its cloud is free each month up to 1M events and 5K recordings; beyond that you pay per use, from $0.00005 per anonymous event.

Product analytics past 1M events a month costs $0.00005 per anonymous event and $0.000198 per identified event at the starting tier; other products have their own free allowance and rates. Platform packages add Boost at $250 a month (unlimited projects, white labelling, HIPAA BAA, SSO enforcement) and Scale at $750 a month (SAML, priority support); Enterprise is priced on request. Annual plans are available, and startups and non-profits can get standing discounts. Full pricing on posthog.com. We checked these prices on 8 Nov 2026.

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Is PostHog open source?

Yes. PostHog's code is public under the MIT licence, so you can run it on your own server.

Host it on a serverRailway and Elestio set it up on a server for you with a one-click install.

Hosting with

How do I connect PostHog to my AI agent?

PostHog MCP is PostHog's official MCP server. Add it to your agent once, then ask it to query PostHog product analytics, flags and errors.

Connects your agent to your PostHog projects, so it can pull insights and trends, look at feature flags and experiments and check errors while you work on the code.

Claude CodeCursorCodexGitHub Copilot

Terminal

$ claude mcp add --transport http posthog https://mcp.posthog.com/mcp

Claude Code connects to PostHog over the web.

Run /mcp and sign in to PostHog in the browser.

Then ask your agent

• Count sign-ups from last week
• List feature flags that are fully rolled out
• Show the top errors since yesterday's release

Runs

On the web

Sign-in

OAuth

Checked

Answered 13 Nov

Guide

posthog.com

What are the best PostHog alternatives?

PostHog is an open source alternative to Datadog Experiments, Microsoft Clarity, Mixpanel and 2 more. Plausible Analytics does the same job and is open source too.

Datadog ExperimentsFreemium

Warehouse-native A/B testing and feature flags in Datadog, formerly Eppo.

Microsoft ClarityFree

Microsoft's no-cost tool that records visitor sessions and maps clicks and scrolls on sites and apps.

MixpanelFree

Event-based analysis of how people use your app or site, with replays, A/B tests and an AI agent.

Simple AnalyticsFree

Privacy-first web analytics with no cookies.

Google AnalyticsFree

Free tracking of website and app visitors, traffic sources and conversions, tied into Google Ads.

Plausible AnalyticsOpen Source

Cookie-free web analytics with a one-page dashboard and goals, as an EU cloud or self-hosted.

Questions about PostHog