REST API endpoints for Git blobs

Use the REST API to interact with a Git blob (binary large object), the object type used to store the contents of each file in a repository.

About Git blobs

A Git blob (binary large object) is the object type used to store the contents of each file in a repository. The file's SHA-1 hash is computed and stored in the blob object. These endpoints allow you to read and write blob objects
to your Git database on GitHub. Blobs leverage custom media types. For more information about the use of media types in the API, see Getting started with the REST API.

Note

Most endpoints use Authorization: Bearer <YOUR-TOKEN> and Accept: application/vnd.github+json headers, plus X-GitHub-Api-Version: 2026-03-10. Curl examples below omit these standard headers for brevity.

Create a blob

POST /repos/{owner}/{repo}/git/blobs

Parameters

Headers

accept (string)
Setting to application/vnd.github+json is recommended.

Path and query parameters

owner (string) (required)
The account owner of the repository. The name is not case sensitive.
repo (string) (required)
The name of the repository without the .git extension. The name is not case sensitive.

Body parameters

content (string) (required)
The new blob's content.
encoding (string)
The encoding used for content. Currently, "utf-8" and "base64" are supported.
Default: utf-8

HTTP response status codes

201 - Created
403 - Forbidden
404 - Resource not found
409 - Conflict
422 - Validation failed

Code examples

Example

Request:

curl -L \
  -X POST \
  https://api.github.com/repos/OWNER/REPO/git/blobs \
  -d '{
  "content": "Content of the blob",
  "encoding": "utf-8"
}'

Response schema (Status: 201):

url: required, string
sha: required, string

Get a blob

GET /repos/{owner}/{repo}/git/blobs/{file_sha}

The content in the response will always be Base64 encoded.
This endpoint supports the following custom media types. For more information, see "Media types."

application/vnd.github.raw+json: Returns the raw blob data.
application/vnd.github+json: Returns a JSON representation of the blob with content as a base64 encoded string. This is the default if no media type is specified.

Note This endpoint supports blobs up to 100 megabytes in size.