Freedom251 › Preview Environment Software
Spunto
What Spunto is
Spunto provides isolated development environments, production deployments, and operations tools on customer-controlled compute. Each sandbox supplies Linux, Docker, persistent storage, a terminal, and HTTPS URLs for ports. Workers use devcontainer-compatible configurations and can be opened in a browser or reached over SSH. Agents create sandboxes and run commands through a REST API or MCP server with scoped keys; built-in tasks support Claude Code, while other command-line agents can be configured. Spunto deploys grouped Docker services with custom domains, automatic TLS, pre-deploy hooks, logs, and one-click presets. It supports pull request previews, GitHub integration, and GitHub, GitLab, Gitea, Bitbucket, and self-hosted remotes. Compute can use Google Cloud VMs, including spot instances, Hetzner, or another Linux machine with Docker. Spunto says repositories stay on connected nodes, secrets are encrypted and write-only, and workers use isolated Docker bridge networks. The BYOC plan is free for every beta user, with unlimited workers on owned nodes and no card or trial clock. Snapshots, running-sandbox forking, and streamed desktop access are not yet available.
Who it suits
Spunto suits teams needing reproducible, isolated environments for onboarding, feature branches, AI agent sandboxes, or production services. It is relevant when teams control their own cloud or Linux compute.
What it does well
- Linux sandboxes with Docker and persistent storage
- REST API and MCP agent interfaces
- Deployments include custom domains and automatic TLS
- Supports multiple Git providers and pull request previews
- Free BYOC beta plan
What to know first
- Snapshots are not yet available
- Cannot fork a running sandbox yet
- Streamed desktop is not available
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| BYOC | Free for every beta user; no card or trial clock. · Unlimited workers on your own nodes · isolated devcontainer-native environments · Docker deployments with custom domains and TLS | On request |
As spunto.net lists them, read 4 Oct 2026. The maker's own page has the final word.
Verdict
Spunto links customer-controlled compute with isolated development sandboxes and Docker deployments. Its agent interfaces, Git integrations, and free BYOC beta plan appeal to teams managing their own infrastructure, with several desktop-like features still absent.
Facts from Spunto's own pages
- Access control
- Organizations support owner, admin, and member roles; API keys can be scoped to limit their permissions. · spunto.net, 4 Oct 2026
- Agent interfaces
- Agents can use Spunto through its REST API or MCP server, with scoped keys. · spunto.net, 4 Oct 2026
- AI sandboxes
- Each sandbox provides a Linux environment with Docker, persistent storage, a terminal, and HTTPS URLs for ports. · spunto.net, 4 Oct 2026
- Audience
- Spunto describes the platform as intended for teams needing reproducible, isolated environments for onboarding, feature branches, AI agent sandboxes, or production services. · spunto.net, 4 Oct 2026
- Compute providers
- Spunto can provision Google Cloud VMs, including spot instances, or connect to Hetzner and any Linux machine with Docker. · spunto.net, 4 Oct 2026
- Deployments
- Spunto runs grouped Docker services with custom domains, automatic TLS, pre-deploy hooks, logs, and one-click service presets. · spunto.net, 4 Oct 2026
- Development environments
- Workers run devcontainer-compatible configurations and can be opened in a browser or accessed over SSH. · spunto.net, 4 Oct 2026
- Integrations
- Spunto documents GitHub integration for deploy keys, Git credentials, and repository cloning, and supports connecting Google Cloud, Hetzner, or a user's own server. · spunto.net, 4 Oct 2026
- Limitations
- The homepage says snapshots, forking a running sandbox, and a streamed desktop are not yet available. · spunto.net, 4 Oct 2026
- Purpose
- Spunto provides isolated development environments, production deployments, and operations tools on compute the customer controls. · spunto.net, 4 Oct 2026
- Secrets and code
- The homepage says secrets are encrypted and write-only, while repositories are cloned on connected nodes rather than Spunto's servers. · spunto.net, 4 Oct 2026
- Security
- Workers and services use isolated Docker bridge networks, and the node agent connects outbound without requiring inbound ports or firewall changes. · spunto.net, 4 Oct 2026
- Supported agents
- Any agent able to call an HTTP API or MCP can create sandboxes and run commands; built-in tasks support Claude Code, and other command-line agents can be configured as custom commands. · spunto.net, 4 Oct 2026
Where Spunto stands on Freedom251
- Preview Environment Software#19 of 38