By Mockoon killed its cloud plans. On October 1, 2026, the popular open-source API mocking tool replaced Mockoon Cloud with Mockoon Pro — a self-hosted-only platform that moves your mock infrastructure back onto your own servers. If you had a Mockoon Cloud plan, it’s deprecated. If you have been waiting for a reason to self-host your API mocking workflow, the reason just arrived.
What Actually Changed
This is not a feature addition. Mockoon dropped its hosted cloud offering entirely and is betting the product on self-hosting. The company’s stated focus for the rest of 2026: deliver a complete self-hosted Mockoon platform. Mockoon Pro launched in beta on October 1 and is available now.
The desktop app, CLI, and Docker image remain free and open source. What changed is the team collaboration layer — that now requires Mockoon Pro, which you run yourself.
What Mockoon Pro Gives You
Mockoon Pro is the team tier that Mockoon Cloud was, minus the SaaS dependency. Once deployed, it provides:
- Deploy on-premises, in a private cloud, or in a fully air-gapped network
- Real-time data sync across the team
- Centralized mock instance management
- An embedded web application — team members access it from a browser, no desktop install required
- User management with local authentication or OIDC SSO
- An audit trail for admin and workspace events
The last two items are the enterprise tells. OIDC SSO and audit trails are what compliance teams ask for before they sign off on any tooling. Mockoon Pro is clearly targeting the teams that were previously blocked from using it because they could not send data to a third-party cloud.
The Pricing Math
The old Mockoon Cloud Team plan ran $100/month billed annually — $1,200 per year for 5 members, capped at 3 cloud-deployed mocks and 100,000 calls per month. The new Mockoon Pro self-hosted plan is €10 per license per month, billed at €120 per license per year.
A five-person team goes from $1,200/year (with call limits) to €600/year (no call limits). That is roughly half the cost, and you are no longer subject to API call rate caps or cloud availability. For teams already running their own infrastructure, adding one more self-hosted service is a smaller operational lift than paying double for a managed one.
Enterprise teams that genuinely cannot manage their own infrastructure: a managed cloud option is still on the roadmap.
Update to v9.9.0 Now
The v9.9.0 release that ships Mockoon Pro support also patches a prototype pollution vulnerability in multipart form-data parsing. This affects Mockoon runtimes — every team running Mockoon in a CI/CD pipeline or as a shared service should update immediately. The fix is in v9.9.0 and above.
Also in v9.9.0: the @mockoon/serverless package is formally deprecated. If you have been using it for AWS Lambda or Google Cloud Run deployments, switch to the official Mockoon CLI Docker image instead.
Who This Is Actually For
If you are a solo developer or a small team doing local development, none of this changes anything. The free tier — desktop app, CLI, Docker image — covers everything you need.
Mockoon Pro is for teams that hit at least one of these:
- Compliance requirements that prohibit sending API schemas to third-party services (HIPAA, SOC 2, GDPR)
- Air-gapped development environments with no outbound internet access
- Teams already self-hosting their toolchain (Gitea, Plane, Mattermost) and want consistency
- Teams that were hitting Mockoon Cloud call limits or resented paying per request
For everyone else, the free tier is still the answer. Mockoon did not break anything — it opened a door that was previously closed to a specific class of enterprise teams. That’s a reasonable product move, and the pricing makes it hard to argue against running it yourself.
The GitHub repository has setup documentation and the latest release assets for teams ready to self-host now.
