<Info>This API is in beta. Endpoints, fields, and behavior may still change, so avoid depending on it in production.</Info>

Creates a Base44 branch from a branch that already exists in the connected GitHub repository.

The two are one line of work. Base44 commits to the GitHub branch you name and never creates a separate branch in the repository.

Name a GitHub branch that already exists and isn't the repository's default branch, which the app's main chat already uses. The name also has to be free among the app's active and merged Base44 branches, so you can import a given GitHub branch once.

If Base44 can't read the branch from GitHub, nothing is created and you can retry.

<Warning>The response includes fields beyond the ones documented here. Don't rely on undocumented response fields, as they can change at any time.</Warning>

{
  "branch_name": "feature/reporting"
}

{
  "id": "68b1c0d4e7b91d003c45a1f7",
  "branch_name": "feature/reporting",
  "conversation_id": "68b1c0d4e7b91d003c45a1f8",
  "base_git_commit_hash": "9f2c1ab7d4e58036bb1f4c0a7de92b41c0d5e8a3",
  "last_git_commit_hash": "4c7e1f90ab3d5628e1a0f7b24c9d8e6350a1b2c4",
  "created_date": "2026-08-15T09:10:00.123456Z"
}