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>log in to commentI built Foliox License to give developers a simple hosted license key system that can lock keys to a single device, set expiries, revoke instantly and verify via an Ed25519‑signed API. It’s free to start, includes Python, Node, Go and Rust SDKs, and handles email notifications for your customers. Let me know what you think 😊
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Foliox License is a hosted software license key system with device-locking, expiry, instant revocation and Ed25519-signed API.
- for
- Developers who ship desktop or server tools and need strict, pirate-resistant licensing.
- pricing
- freemium
Key features
- HWID device locking — First activation binds a key to a hashed machine ID; other devices are refused.
- Ed25519-signed responses — Every API answer is signed, allowing offline verification of authenticity.
- Instant revocation — Revoke a key and it stops working on the next check; restore instantly if needed.
- Flexible expiry — Keys can never expire, expire after N days, or on a fixed date; extend with one click.
- Customer self-service portal — Buyers can check license status and request device resets directly.
- Automation-ready API tokens — Scoped tokens let bots or checkout webhooks create keys without exposing passwords.
- Built-in email notifications — Automatic emails on key creation, two-day expiry reminder, and expiry notice.
- Multi-language SDKs — Ready-made SDKs for Python, Node.js, Go and Rust with offline 72-hour grace period.
Use cases
- Lock a commercial desktop app to a single user’s computer.
- Offer time-limited trial licenses that auto-expire after a set period.
- Provide SaaS tools that need instant revocation after a refund or chargeback.
- Automate key creation from an e-commerce checkout webhook.
Foliox License pricing
- Free$0HWID locking · Ed25519-signed responses · 4 SDKs · 10 products, 30 keys each
- Starter$4/month1,000 keys across 10 products · Device resets & key aliases · 2 scoped API tokens · Up to 3 devices per key
- Pro$9/month10,000 keys across 25 products · Delete keys and products · Usage insights & analytics · Up to 5 devices per key
- Business$29/month100,000 keys across 200 products · 20 scoped API tokens · 30,000 customer e-mails/month · Up to 15 devices per key
Foliox License vs alternatives
 Foliox License |  Doppler |  Postmark |  Vonage |  Insomnia | |
|---|---|---|---|---|---|
| Best for | Hardware-locked, signed license keys | Secrets management | Transactional email delivery | SMS/voice/video APIs | API testing client |
| Pricing | Freemium | Subscription | Subscription | Subscription | Free |
| DevHunt upvotes | 1 | 0 | 0 | 0 | 0 |
| Launched | Feb 2031 | — | — | — | — |
- Foliox License vs Doppler: Foliox provides hardware-locked, signed license keys; Doppler focuses on secrets management, not licensing.
- Foliox License vs Postmark: Postmark sends transactional emails; Foliox combines licensing with automated customer emails.
- Foliox License vs Vonage: Vonage offers communication APIs, while Foliox handles software licensing and device binding.
- Foliox License vs Insomnia: Insomnia is an API client; Foliox is a licensing service with its own API for key verification.
Foliox License FAQ
What is Foliox License?+
It is a hosted license key system where you generate keys, lock them to a device, set expiry, revoke instantly and verify via an Ed25519-signed API.
Is there a free plan?+
Yes, the Free plan requires no credit card and includes HWID locking, signed responses, all SDKs, and limited keys and products.
How does the device lock work?+
On first activation the key is bound to a hashed machine ID; any other computer is refused unless you grant additional devices on paid plans.
What happens if the license server is unreachable?+
The SDK caches the last signed valid response and allows the app to run offline for up to 72 hours before failing closed.
Can I automate key creation?+
Yes, you can create scoped API tokens and call the automation API from your checkout webhook or bot.
Which languages are supported?+
Ready-made SDKs are provided for Python, Node.js, Go and Rust, plus a generic REST API for any language.
Summarized by DevHunt from license.foliox.sbs · Oct 15, 2026. Details may change; check the official site.
