Pricing
Endless Testing is free to start. Install the CLI, connect a domain, and run up to 5 concurrent A/B tests with zero upfront cost. Upgrade when you need more capacity.
Get started immediately. No credit card required.
| Feature | Limit |
|---|---|
| Concurrent tests | 5 |
| Variants per test | 3 |
| Monthly active users (MAU) | 10,000 |
| Domains | 1 |
| AI variant generation | Included |
| Thompson sampling | Included |
| Auto-evaluation | Included |
| CLI + MCP | Included |
| Dashboard | Included |
Pro: $99/mo
Section titled “Pro: $99/mo”For teams that need more tests, more domains, and higher traffic.
| Feature | Limit |
|---|---|
| Concurrent tests | 25 |
| Variants per test | 10 |
| Monthly active users (MAU) | 100,000 |
| Domains | 5 |
| Everything in Free | Included |
| Priority AI processing | Included |
| Priority support | Included |
Enterprise: custom pricing
Section titled “Enterprise: custom pricing”For high-traffic sites and organizations with custom requirements.
| Feature | Limit |
|---|---|
| Concurrent tests | Unlimited |
| Variants per test | Custom |
| Monthly active users (MAU) | Custom |
| Domains | Unlimited |
| Everything in Pro | Included |
| Dedicated support | Included |
| Custom integrations | Included |
| SLA | Included |
Contact us at [email protected] for Enterprise pricing.
Licensing
Section titled “Licensing”Endless Testing uses a split license model:
- CLI, SDK, and Dashboard are MIT-licensed: free to use, modify, and redistribute.
- Backend server is licensed under BSL 1.1: source-available for transparency, converts to MIT on April 1, 2030.
The hosted service at endlesstesting.ai is the primary way to use Endless Testing. Usage is governed by the tier limits above, enforced through the API.
Do I need to sign up to install the CLI?
You can copy et onto your PATH before you have an account. Sign in with et login --email [email protected] when you connect a site.
Can I use the free tier commercially? Yes. The free tier is fully functional for commercial use. There are no team-size restrictions. Limits are based on usage only.
What happens if I exceed MAU limits? We notify you when you approach your limit. Tests continue running, but new visitor allocations pause until the next billing cycle or you upgrade.
Can I self-host the backend? The backend source code is available under BSL 1.1. Self-hosting requires a D1 database, AI API keys, and the browser rendering binding. The hosted service is what the free tier is for.