Singularity Container Services
Singularity Container Services (SCS) is Sylabs’ hosted version of Singularity Enterprise, offered free for container sharing and related workflows.
What Singularity Container Services is
Singularity Container Services (SCS) is Sylabs’ hosted version of Singularity Enterprise, offered free for container sharing and related workflows. Its cloud library lets users publish containers for others to retrieve, verify, and use. Teams can share and discover SIF images and control access with role-based controls. A Remote Builder supports container builds on systems where users do not have root privileges, while the Keystore uses cryptographic keys to sign and verify containers. SCS supports SIF and OCI image files; the SingularityCE guide documents pushing library images with the singularity push command and accessing its OCI registry with tools such as Skopeo and Docker. Sign-in options include Google, GitHub, GitLab, and Microsoft. Sylabs says its services use TLS and signed, encrypted authentication tokens. The free plan includes one project, 500 build minutes per rolling 30 days, 11GB of library storage, x86 only, and Cloud OAuth. Sylabs has announced that SCS will be discontinued on October 22, 2026; its site and services will stop operating, and stored data will be deleted.
Good
- Free plan includes one project
- Supports both SIF and OCI images
- Remote builds do not require root privileges
- Role-based controls for library access
- Cryptographic keys support container signing and verification
Watch out
- Service scheduled to end October 22, 2026
- Free plan limited to x86
- Includes 500 build minutes per rolling 30 days
- Stored data will be deleted at shutdown
Who it suits
SCS may suit researchers, scientists, engineers, and developers who need hosted container sharing or remote builds, including in performance-intensive compute environments. Its announced shutdown makes it important for prospective users to plan for service and data loss.
Verdict
SCS provides container hosting, sharing, signing, and remote builds at no charge within its stated plan limits. Its announced discontinuation and deletion of stored data are central considerations for anyone deciding whether to use it.
Plans and prices
From Singularity Container Services's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Singularity Container Services | Free | one project · 500 build minutes per rolling 30 days · 11GB library storage · x86 only · Cloud OAuth · Free |
The facts
Each one read from Singularity Container Services's own pages, with the date it was checked.
What it does
- Account sign-in
- The user guide lists Google, GitHub, GitLab, and Microsoft as sign-in options for SCS.checked 11 Oct 2026
- Image formats
- The Enterprise feature comparison lists support for both SIF and OCI image files for SCS.checked 11 Oct 2026
- Integrations
- The SingularityCE user guide documents pushing SCS library images using the singularity push command and accessing its OCI registry with tools such as Skopeo and Docker.checked 11 Oct 2026
- Library
- The Container Library lets teams share and discover SIF images and control access with role-based access controls.checked 11 Oct 2026
- Remote builds
- SCS provides a secure Remote Builder for building containers on systems where users lack root privileges.checked 11 Oct 2026
- Security
- The Sylabs Cloud security documentation says its services use TLS, signed and encrypted authentication tokens, and authenticate requests between services.checked 11 Oct 2026
- Service
- Singularity Container Services is Sylabs’ free hosted version of Singularity Enterprise.checked 11 Oct 2026
- Service discontinuation
- The SCS EULA announces discontinuation of Singularity Container Services on October 22, 2026, after which cloud.sylabs.io and its services will cease to operate and stored data will be deleted.checked 11 Oct 2026
- Signing
- The Keystore uses cryptographic keys to sign and verify containers for authenticity and integrity.checked 11 Oct 2026
- Support
- Sylabs lists email support for customers and directs general inquiries to its sales team.checked 11 Oct 2026
- What it does
- The SCS Library lets users push containers to the cloud so others can pull, verify, and use them.checked 11 Oct 2026
- Who it serves
- Sylabs describes its container runtime technology as serving researchers, scientists, engineers, and developers, including performance-intensive compute environments.checked 11 Oct 2026
The company
- Headquarters
- Reno, Nevada, United Stateschecked 28 Sep 2026
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