How much does fwknop cost?

fwknop is listed as free. No paid plan with a published price was found.

Does fwknop have an API?

We could not confirm API access for fwknop.

● Identity checked

Code · Vendor site 2026-10-04

It integrates with iptables, firewalld, PF, and ipfw to hide daemons such as SSH until authorized clients knock.

Updated 2026-10-04View sources

Category: Code
Free access: fwknop is open source software distributed from cipherdyne.org and GitHub without a SaaS subscription.
API access: Not confirmed

Understand the total cost

Free

fwknop is open source software distributed from cipherdyne.org and GitHub without a SaaS subscription.

Access: fwknop is open source software distributed from cipherdyne.org and GitHub without a SaaS subscription.

No retained pricing changes yet. A current price alone does not establish a historical trend.

Identity and profile

Reviewed vendor source

2026-10-04

Facts apply to the named version and check date. Send a sourced correction if something changed.