| always-auth | Set always-auth in npmrc. | — | false |
| node-version | Version Spec to use. Examples: 18, 18.x, 18.0.0, 18.0.x, 18.0.0-x, 18.0.0-x64. | no | — |
| matrix-node-version | Version Spec array, i.e. from matrix.node-version. Latest will be selected from this array and setup-node will be run with the selected version. | no | — |
| matrix-node-version-earliest | Set this option if you want the action to select for the earliest available version from the matrix.node-version array. | — | false |
| node-version-file | File containing the version Spec of the version to use. Examples: package.json, .nvmrc, .node-version, .tool-versions. | — | — |
| architecture | Target architecture for Node to use. Examples: x86, x64. Will use system architecture by default. | — | — |
| check-latest | Set this option if you want the action to check for the latest available version that satisfies the version spec. | — | false |
| registry-url | Optional registry to set up for auth. Will set the registry in a project level .npmrc and .yarnrc file, and set up auth to read in from env.NODE_AUTH_TOKEN. | — | — |
| scope | Optional scope for authenticating against scoped registries. Will fall back to the repository owner when using the GitHub Packages registry (https://npm.pkg.github.com/). | — | — |
| token | Used to pull node distributions from node-versions. Since there's a default, this is typically not supplied by the user. When running this action on github.com, the default value is sufficient. When running on GHES, you can pass a personal access token for github.com if you are experiencing rate limiting. | — | ${{ github.server_url == 'https://github.com' && github.token || '' }} |
| cache | Used to specify a package manager for caching in the default directory. Supported values: npm, yarn, pnpm. | — | — |
| cache-dependency-path | Used to specify the path to a dependency file: package-lock.json, yarn.lock, etc. Supports wildcards or a list of file names for caching multiple dependencies. | — | — |
| mirror | Used to specify an alternative mirror to downlooad Node.js binaries from | — | — |
| mirror-token | The token used as Authorization header when fetching from the mirror | — | — |