Default environment variables for your codespace

GitHub sets default environment variables for each codespace.

In this article

About default environment variables

GitHub sets default environment variables for every codespace. Commands run in codespaces can create, read, and modify environment variables.

Note

Environment variables are case-sensitive.

List of default environment variables

Environment variable	Description
`CODESPACE_NAME`	The name of the codespace For example, `octocat-literate-space-parakeet-mld5`
`CODESPACES`	Always `true` while in a codespace
`GIT_COMMITTER_EMAIL`	The email for the "author" field of future `git` commits.
`GIT_COMMITTER_NAME`	The name for the "committer" field of future `git` commits.
`GITHUB_CODESPACES_PORT_FORWARDING_DOMAIN`	Returns the domain of the GitHub Codespaces forwarded port. For example, `app.github.dev`.
`GITHUB_API_URL`	Returns the API URL. For example, `https://api.github.com`.
`GITHUB_GRAPHQL_URL`	Returns the GraphQL API URL. For example, `https://api.github.com/graphql`.
`GITHUB_REPOSITORY`	The owner and repository name. For example, `octocat/Hello-World`.
`GITHUB_SERVER_URL`	Returns the URL of the GitHub server. For example, `https://github.com`.
`GITHUB_TOKEN`	A signed auth token representing the user in the codespace. You can use this to make authenticated calls to the GitHub API. For more information, see "Security in GitHub Codespaces."
`GITHUB_USER`	The name of the user that initiated the codespace. For example, `octocat`.