# CLI compatibility information The CLI API provides information about the compatibility of the Constellation CLI and other components of the Constellation ecosystem such as Kubernetes versions. ## CLI API Endpoints The build pipeline produces artifacts for compatibility information that are uploaded to S3 and can be accessed via HTTP. The artifacts are organized in a directory structure that allows to look up the compatibility for a given Constellation version. The following HTTP endpoints are available: - `GET /constellation/v1/ref/<REF>/stream/<STREAM>/<VERSION>/cli/` - [`info.json` returns the CLI compatibility information artifact for the given Constellation version.](#cli-lookup-table) ## CLI information artifact The CLI compatibility information artifact is a JSON file that maps the image name consisting of `ref`, `stream` and `version` to the corresponding CLI version and it's compatibility information: ``` /constellation/v1/ref/<REF>/stream/<STREAM>/<VERSION>/cli/info.json ``` ```json { "version": "<VERSION>", "ref": "<REF>", "stream": "<STREAM>", "kubernetes": ["v1.1.23", "v1.1.24", "v1.1.25"] } ``` This shows that the Constellation CLI version `<VERSION>` is compatible with Kubernetes versions `v1.1.23`, `v1.1.24` and `v1.1.25`.