Get Origin Blob via the API

get-origin-blob-via-apiUpdated 2026-09-22

Read a Git blob object by SHA with GET https://api.cursor.com/v1/origin/repos/{ownerSlug}/{repoName}/git/blobs/{sha}. Official reference: Origin API (OpenAPI OriginService_GetBlob).

Origin is in Early Beta and subject to change. Authenticate with an installation access token (oit_…) or a user access token that carries repository:contents:read. Availability: Early Beta per the API overview.

The default response is JSON with MIME-wrapped base64 content. Pass Accept: application/vnd.origin.raw+json or application/vnd.origin.raw to receive raw blob bytes instead. Blobs larger than 4 MiB (decoded) are rejected; fetch larger files by cloning over Git HTTPS. An empty repository returns 409 Conflict.

Cost: 1 point against the principal budget (ordinary read).

Path parameters

Param	Required	Meaning
`ownerSlug`	yes	Owning entity's unique slug
`repoName`	yes	Repo name, unique to the owner
`sha`	yes	Full or abbreviated hex SHA of the blob object

curl --request GET \
  --url 'https://api.cursor.com/v1/origin/repos/OWNER_SLUG/REPO_NAME/git/blobs/9a41f0c3d2b8e7f6a5c4d3e2f1b0a9c8d7e6f5a4' \
  --header 'Authorization: Bearer YOUR_ORIGIN_TOKEN'

Raw bytes:

curl --request GET \
  --url 'https://api.cursor.com/v1/origin/repos/OWNER_SLUG/REPO_NAME/git/blobs/9a41f0c3d2b8e7f6a5c4d3e2f1b0a9c8d7e6f5a4' \
  --header 'Authorization: Bearer YOUR_ORIGIN_TOKEN' \
  --header 'Accept: application/vnd.origin.raw' \
  --output blob.bin

Response

JSON 200 returns sha, size (decoded bytes as a JSON number, int32), encoding always base64, and content wrapped at 60 characters per line with a trailing newline.

{
  "sha": "9a41f0c3d2b8e7f6a5c4d3e2f1b0a9c8d7e6f5a4",
  "size": 128,
  "encoding": "base64",
  "content": "IyBSb2NrZXQK\n"
}

Resolve a blob SHA from Get Contents (sha on a file entry) or from a tree walk. Base URL: https://api.cursor.com/v1/origin.