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Most ephemeral environment tools copy the whole stack for every change. Signadot multiplexes many ephemeral virtual environments within one physical environment, such as staging, and each one duplicates only the components a change touched. That keeps them light and fast to create, so hundreds run in parallel for developers and coding agents.

Local development. Run the service you are changing on your laptop, or let a coding agent do it, inside an ephemeral environment with real dependencies.
Preview environments. An ephemeral environment for every pull request, including web and mobile frontends.
Your own automated tests. Run Playwright, Cypress, k6 or any other suite in your cluster against each environment.
Smart Tests. API tests that compare a changed service with the baseline and flag breaking changes.
Coding agents. An MCP server and agent skills let agents create environments and test their own changes.

Each coding agent gets its own ephemeral environment with real services and data, whether it runs on a developer's laptop or as a background agent in the cloud. The agent runs its code against the real system, reads the errors, fixes them and runs its tests again before anyone reviews the change, without touching anyone else's work.

Any coding agent that supports the Model Context Protocol (MCP) or agent skills, including Claude Code and Cursor. Agents create and manage ephemeral environments and test their changes from inside their own workflow. Background agents running in cloud sandboxes get their own ephemeral environment too.

The Signadot MCP server connects coding agents to your Kubernetes clusters through the Model Context Protocol. It ships with the Signadot CLI and gives agents tools to create and manage ephemeral environments and read cluster context, so they can test their changes against real services from a prompt.

An ephemeral environment, called a Sandbox in the Signadot CLI and API, holds only the components a code change touches and shares everything else in your existing environment, such as staging. Whoever uses it sees what looks like a full copy of staging, without interfering with anyone else's work.

Inside the Kubernetes clusters you already run. Signadot installs as an operator, so workloads, data and tests stay in your infrastructure. The Signadot control plane manages the environments but sees only resource metadata by default, never your code or application data.

Most teams create their first ephemeral environment in about 15 minutes. You install the Signadot operator in your Kubernetes cluster and use the CLI to create an environment and run your tests, or start on our playground cluster with no cluster of your own.

Through the Signadot CLI, as a step in any pipeline. The pipeline creates an ephemeral environment for each pull request, runs your tests against it, and deletes it when the pull request closes. The docs have guides for GitHub Actions, GitLab CI, Jenkins and Bitbucket Pipelines.

Yes. On Istio it is native: Signadot updates the routing rules in your VirtualServices and Istio routes the traffic, in sidecar or ambient mode, with no extra sidecar to install. With the Gateway API, Signadot adds routes beside your HTTPRoutes and GRPCRoutes. With Linkerd or no mesh, a lightweight DevMesh sidecar routes requests. The routing key travels in the OpenTelemetry baggage header your tracing libraries already pass along.

Yes. Signadot runs your existing test suites, such as Playwright, Cypress, Selenium, Postman, k6 or your own, in your cluster against each ephemeral environment, on pre-warmed runners, with the results in one place. Coding agents can also write new tests and run them in their environment, which gives them immediate feedback on their changes.

Smart Tests are API tests you write once in Starlark. Signadot sends the same requests to the changed service and to the baseline, and a model flags the differences that matter, such as a removed field or a new error, without an assertion for every field. They cover REST APIs with JSON and complement contract tests rather than replacing them.

Yes. Signadot runs in your infrastructure, and its control plane receives only resource metadata by default, never your code or application data. It supports SSO and role-based access control, and Signadot is SOC 2 Type II. See the security docs.

Cloud native applications built from microservices on Kubernetes, especially with 10 or more services, where testing a change against real dependencies gets hard. It also suits teams adopting coding agents, where 50 or more agents and developers need environments at once. Resource plugins bring in what runs outside Kubernetes, such as managed databases and cloud services.

Signadot has a free Starter plan, and paid plans that scale with usage as your team and coding agents ship more changes. See the pricing page, or talk to us for a custom quote.

Signadot works with them rather than replacing them. Those tools run your tests. Signadot gives each change a realistic ephemeral environment for them to run in, and runs them in parallel across many environments.