Engineering
Ship a paywall in 10 lines
Drop in the SDK, wire one Stripe key, call `paywall.show()`. No service worker plumbing, no CORS drama.
Built for Chrome MV3 · Stripe Connect-native
Subscriptions for Chrome extensions, done.
Drop in our SDK. Connect Stripe. Your users see beautiful paywalls, your dashboard fills with revenue. No backend, no webhook plumbing.
0 min
Time to first paywall
2.5%
Platform fee, flat
<0ms
SDK cold-start
Data and tools for every team
Make reliable cross-platform data and easy-to-use growth tools accessible to everyone.
For engineering
Marketing
Segment by entitlement
Sync paid/trial/churned cohorts to Customer.io, Braze, or your warehouse. One webhook away.
Product
A/B test without shipping
Change price, copy, or layout from the dashboard. No Chrome Web Store re-review. Roll forward and back in seconds.
Support
Customers cancel themselves
One link opens the Stripe billing portal with their session pre-authed. Refunds, receipts, card updates — handled.
Drop it in. It just works.
crxpay replaces the backend you were about to build. Paywalls, entitlements, receipts, refunds — one SDK, one Stripe key, zero webhook plumbing.
✕
Unlock full access
● Annual$49/yr
Monthly $6/mo
background.ts
1import { crxpay } from '@crxpay/sdk'23const sub = crxpay(4 apiKey: 'pk_live_…',5})67await sub.paywall.show()8if (sub.hasEntitlement('pro')) {9 unlockFeatures()10}
Your subscription backend — in a box. crxpay drives the paywall, validates Stripe receipts, and keeps entitlements in sync — across every install of your extension.
Just 10 lines
instead of weeks of webhook plumbing, retry queues, and edge-case debugging.
Live events
streaming
✓
Trial started
user_8f3a · Pro · 14d
$
Subscription · $6
user_71c0 · Monthly
↑
Upgraded
user_442e · Monthly → Annual
✓
Entitlement granted
user_9de1 · pro
Get started in minutes
Free up to $2,500 in tracked revenue, then 2.5%. Half of what ExtPay charges, and no lock-in — it's your Stripe account.
See the docsAn AI writing assistant
See how an indie writing-assistance extension lifted trial-to-paid conversion by 40% after switching to crxpay paywalls.
Read case studyPaywall editor
Launch faster with pre-built, configurable templates.
Designed to impress, built to customize. Our paywall templates are yours to shape — drop in components, wire copy to your entitlements, and ship without touching the Chrome Web Store review queue.
LAYERS
#Image⋯
#Text⋯
#Button⋯
#List⋯
#Button-2⋯
#Text⋯
+ Add component
BUTTON SETTINGS
Alignment
◨
▣
◧
Text field
Start today with 7 days free
BIUS
Color
#F4EA72100%
Spacing
8
English paywall
Spanish paywall
North American paywall
Targeting
Optimize for every audience.
Tailor how you monetize. Target paywalls, pricing, and packaging by locale, install source, or entitlement — all without shipping a new version of your extension.
Overview
Last 30 days
MRR
$24,182
+18.4%
Active subs
4,231
+312
Trial → paid
34.8%
+2.1pp
Churn
3.6%
−0.4pp
Revenue
NewExpansion
Organic install62%
Paid acquisition28%
Referral10%
Analytics
The numbers that matter, on one dashboard.
MRR, trial conversion, churn, LTV — all computed from the same signed ledger the SDK reads. No pixel-fires, no warehouse jobs, no 24-hour delay.
A 2M+ MAU news-reader extension
See how a 2-person reading extension recovered $84k in otherwise-lost MRR with crxpay's dunning + win-back flows.
Read case studySmarter support. Stronger retention.
Ready-to-use growth tools that work together seamlessly — so paying customers stay, and wavering ones come back.
Self-serve support. Build a custom cancellation flow in seconds to automate in-app support and surface targeted win-back offers.
Full picture at a glance. Debug and assist customers faster with centralized subscription, device, and entitlement history.
Automate refund handling. Automatically approve, deny, or escalate refund requests based on usage, tenure, and your own rules — no ticket queue.
Win back at-risk customers. Re-engage churned and cancelling users with targeted discount offers and in-app campaigns — automatically.
Driving results for extensions with millions of users.
From indie side-projects to top-100 Chrome Web Store extensions — crxpay powers the subscription layer.
An AI voice extension
4.2M+ weekly users
We went from zero monetization to a top-10 Productivity extension in the Chrome Web Store within 8 weeks of shipping crxpay paywalls.
Co-founder
AI voice extension · 4.2M+ weekly users
Powering paid extensions across
AI writingVideo captureNotes & docsShoppingReadingNew-tab dashboardsRead-laterDevtools
Trusted by developers globally.
Independently reviewed, security-audited, and compliant — so you can focus on shipping.
4.9/ 5
Capterra
based on 214 reviews
4.8/ 5
G2 Leader
Summer 2026 · 186 reviews
SOC 2
Type II · audited annually
GDPR
EU data residency available
Ready to grow?
Our entire suite of features comes standard — and your first $2,500 in tracked revenue is free.