OpenPanel Review (2026)

OpenPanel ships a hosted MCP server with 38 tools at api.openpanel.dev/mcp — Claude, Cursor, Windsurf, or any custom AI agent can connect via Model Context Protocol and query your analytics data with natural language. One of only five tools in this directory with a real MCP server.

OpenPanel is the cheapest serious product analytics in the privacy-first lane — and it isn't close. $2.50/mo for 5K events versus Plausible's $9 floor, Fathom's $15 floor, and Mixpanel's $25-and-rising bracket means a side project, an indie SaaS, or an internal dashboard can buy real funnel + retention + cohort analysis for the price of a coffee.

The depth is what separates OpenPanel from the rest of this directory. Plausible gates funnels to its $39/mo Business tier and ships no user profiles or session replay; Fathom has none of these at any price. OpenPanel does all three, plus A/B testing, plus event-based goals — Mixpanel-grade product analytics, sold at Plausible-grade simplicity.

The Swedish-incorporated, Hetzner-DE-hosted, Cloudflare-R2-EU-backed-up stack gives the cleanest Schrems II posture in this peer group — no US sub-processors disclosed, no transatlantic data path. AGPL-3.0, run it on your own Hetzner box with PostgreSQL + ClickHouse, and have unlimited events forever.

OpenPanel is a 2023 solo-founder project, and the disclosures show it. Carl Lindesvärd is the only public face; OpenPanel AB does not publish a team size, a status page URL, a named DPO, or a sub-processor changelog. The DPA names Hetzner and Cloudflare R2 — but the payment processor and the transactional email provider are described only as "operating under EU data protection standards." A SOC 2 auditor would flag that gap on day one.

There is no SOC 2, no ISO 27001, no HIPAA. Regulated buyers (healthcare, finance, US public sector) will be blocked at procurement.

There is no US data-residency option. Cloud is Hetzner Germany only. US-only-data customers must self-host.

The 5.7K-star repo is healthy, but contributor breadth is limited — practically a one-person project with community PRs. If Lindesvärd steps away, AGPL means the code survives, but the SaaS doesn't.

Best for EU-based indie SaaS founders and mid-size B2C apps with 100K–1M events/mo who want Mixpanel-class funnels and retention without the Mixpanel bill. Public references include Midday.ai and Screenzen — that's the developer-founder crowd it's built for.

Real value at $20/mo (100K events): A side-project SaaS doing 50K pageviews and 50K custom events gets full funnels + cohort retention + user profiles + 30-day session replay — the exact stack a $300/mo Mixpanel seat provides.

Not for US healthcare or finance (no SOC 2 / HIPAA), procurement-heavy enterprise buyers (no certifications, no public status page), pageview-only WordPress blogs (Plausible is simpler), or teams that need >50M events/mo with white-glove onboarding (Mixpanel/Amplitude are still the answer at that scale).

WordPress (recommended): Install the official OpenPanel plugin from wordpress.org/plugins/openpanel/. Paste your Client ID. The plugin inlines op1.js (~2.3 KB), caches it locally for one week, and proxies events through your domain — defeating most ad-blockers.

Vanilla site: Add before . That's it for pageview tracking. Custom events: window.op('track', 'signup', { plan: 'pro' });.

SDKs: First-party packages for React, Vue, Next.js, Node, Python, Ruby, iOS, Android, React Native, Flutter. Server-side tracking is supported and recommended for revenue events.

Self-host: git clone Openpanel-dev/openpanel, docker compose up -d. Defaults to PostgreSQL + ClickHouse + Redis. Production deploy guide in repo. AGPL-3.0 — if you fork and modify the SaaS, you must publish source.

No automated GA4 importer. Migration is a re-tagging exercise: swap the GA4 gtag.js snippet for OpenPanel's 2.3 KB tag, then re-implement custom events using OpenPanel's op('track', name, props) API. The naming model is event-name + properties, almost identical to GA4's event-name + parameters, so most teams port their event taxonomy 1:1 in a day.

Banner removal lift: This is the underrated win. GA4 in the EU effectively requires a Consent Mode v2 banner; OpenPanel — being cookieless, no-personal-data, EU-hosted — lets most EU sites drop the analytics banner entirely. Faster page loads, higher consented-traffic baseline, no Consent Mode dark traffic to model around.

Practical path: Run GA4 and OpenPanel in parallel for one calendar month, validate event counts match within 5%, then strip GA4 + the consent banner in a single deploy. Plan a half-day for tag rewrite and a half-day for funnel re-creation in OpenPanel's UI.