Hook0

Does Hook0 have a free tier?

Yes. Hook0 has a free tier that includes 100 webhook events per day, HMAC signatures, and delivery monitoring. No credit card required. Hook0 is also fully open-source — you can self-host it at no cost.

What is webhooks as a service?

Webhooks as a service means you send events to Hook0 via a REST API, and Hook0 delivers them to your users' endpoints. It handles retries, cryptographic signatures, delivery logging, and subscriber management so you don't have to build that infrastructure yourself.

Is Hook0 open-source?

Yes. The source code is available on GitHub and GitLab under the SSPL-1.0 license (client SDKs are MIT). You can self-host it with Docker Compose or Kubernetes, or use the managed cloud service hosted in Europe.

Can I self-host Hook0?

Yes. Hook0 supports self-hosting via Docker Compose or Kubernetes. The self-hosted version has the same features as the cloud version. Documentation is at documentation.hook0.com/self-hosting.

How does Hook0 compare to Svix, Hookdeck, or HostedHooks?

Hook0 is the only fully open-source option with self-hosting support. Unlike Svix (open-core), Hook0 has no proprietary enterprise tier. Compared to Hookdeck (webhook gateway) and HostedHooks (closed-source SaaS), Hook0 is bootstrapped with no VC funding and offers both cloud and on-premise deployment.