Free during beta. 20K MAB for non-commercial projects after.

Every project uses a public project ID. Commercial tiers are metered by Monthly Active Browsers and add commercial use rights, support, usage analytics, and enterprise options. The SDK features are the same across free and commercial tiers.

Free

Freeforever

20K MAB after beta

Non-commercial projects, education, tutorials

  • Full SDK, no feature gates
  • Hosted runtime assets
  • Hosted package registry
  • OPFS persistence
  • Community support
Read the docs →

Starter

Free in beta

$20/mo

10K MAB

Indie commercial apps, early-stage products

  • Full SDK, no feature gates
  • Commercial use rights
  • Email support
  • Beta-program invites
Start free →

Pro

Free in beta

$100/mo

100K MAB

Growing SaaS, embedded docs at scale

  • Full SDK, no feature gates
  • Commercial use rights
  • Priority email support
  • Usage analytics
Start free →

Scale

Free in beta

$500/mo

1M MAB

Large product surfaces, agencies

  • Full SDK, no feature gates
  • Commercial use rights
  • 99.5% uptime target
  • Slack-channel support
Start free →

Enterprise

Custom

> 1M MAB

SLA · private CDN · on-prem · indemnity

  • Contractual SLA
  • Private CDN / self-hosted
  • Dedicated support engineer
Talk to sales →

What is a Monthly Active Browser?

A Monthly Active Browser (MAB) is a single browser installation that calls Runtime.boot() at least once during a calendar month for a project ID. The SDK can ping on each boot, and the server deduplicates usage when presenting or billing MAB, so a single user reloading a tab fifty times still counts as one MAB.

Multiple browsers from one person — laptop and phone, say — count as separate MABs. We don’t fingerprint, IP-track, or correlate across origins. After beta, non-commercial projects include 20,000 MAB per month.

Things people ask.

What counts as commercial use?

Any use that is part of a product, service, or workflow your company sells or relies on to make money. If you are running tutorials, demos, education, or your own personal project, you are on the Free tier.

What happens when billing turns on?

Everything is free during the beta. We give commercial workspaces sixty days written notice before we charge anything. Your usage during beta does not count against any future limits. Non-commercial projects get 20,000 MAB after beta.

Do all projects need a project ID?

Yes. A project ID is a public identifier used to load the right runtime assets, choose the compatible package registry, and report usage. It is not a secret and is safe to ship in browser code.

Can I self-host assets?

Most customers use the default hosted runtime assets and registry. Enterprise customers can ship Verklet assets from their own CDN; talk to us if you need that.