content/codespaces/developing-in-a-codespace/default-environment-variables-for-your-codespace.md

metadata

title: Default environment variables for your codespace
shortTitle: Default environment variables
intro: >-
  {% data variables.product.prodname_dotcom %} sets default environment
  variables for each codespace.
versions:
  fpt: '*'
  ghec: '*'
type: overview
topics:
  - Codespaces
  - Fundamentals
  - Developer
redirect_from:
  - >-
    /codespaces/developing-in-codespaces/default-environment-variables-for-your-codespace

About default environment variables

{% data variables.product.prodname_dotcom %} sets default environment variables for every codespace. Commands run in codespaces can create, read, and modify environment variables.

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 {% data variables.product.prodname_github_codespaces %} forwarded port. For example, app.github.dev.
GITHUB_API_URL	Returns the API URL. For example, {% data variables.product.rest_url %}.
GITHUB_GRAPHQL_URL	Returns the GraphQL API URL. For example, {% data variables.product.graphql_url %}.
GITHUB_REPOSITORY	The owner and repository name. For example, octocat/Hello-World.
GITHUB_SERVER_URL	Returns the URL of the {% data variables.product.github %} server. For example, https://{% data variables.product.product_url %}.
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 AUTOTITLE.
GITHUB_USER	The name of the user that initiated the codespace. For example, octocat.