curl -X POST 'https://uploads.github.com/repos/example-owner/example-repo/releases/10/assets?name=example-name&label=example-label' \
  -H "Authorization: Bearer $GITHUB_TOKEN" \
  -H 'Accept: application/vnd.github+json' \
  -H 'X-GitHub-Api-Version: 2026-03-10' \
  -H 'Content-Type: application/octet-stream' \
  --data-binary 'example-body'

# POST /repos/{owner}/{repo}/releases/{release_id}/assets (GitHub API)
Base URL: https://uploads.github.com
Auth: Authorization; GitHub token; required.
Request formats: application/octet-stream.
Last verified: 2026-10-20

> Upload a release asset

## Critical Gotchas
* GitHub recommends an `Accept: application/vnd.github+json` header and an explicit `X-GitHub-Api-Version` header.
* Fine-grained tokens only authorize repositories and permissions selected when the token is created.

## cURL
curl -X POST 'https://uploads.github.com/repos/example-owner/example-repo/releases/10/assets?name=example-name&label=example-label' \
  -H "Authorization: Bearer $GITHUB_TOKEN" \
  -H 'Accept: application/vnd.github+json' \
  -H 'X-GitHub-Api-Version: 2026-03-10' \
  -H 'Content-Type: application/octet-stream' \
  --data-binary 'example-body'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| owner | path | string | Yes | The account owner of the repository. The name is not case sensitive. |
| repo | path | string | Yes | The name of the repository without the `.git` extension. The name is not case... |
| release_id | path | integer | Yes | The unique identifier of the release. |
| name | query | string | Yes | query parameter name. |
| label | query | string | No | query parameter label. |
| body | body | string | No | The raw file data |

## Response example
{"url":"https://example.com","browser_download_url":"https://example.com"}

---
Need an API key? Get one at https://github.com/settings/tokens

POST

POST /repos/{owner}/{repo}/releases/{release_id}/assets — GitHub API

GitHub token (required); https://uploads.github.com

GitHub API

Upload a release asset

Base URL: https://api.github.com
Auth: Authorization: Bearer <GITHUB_API_KEY>
Last verified: 2026-10-20 · upstream hash matched

Actions Try in browser→

Agents: curl -H "Accept: text/markdown" this URL
→ 284 tokens · Vary: Accept

Critical gotchas

GitHub recommends an Accept: application/vnd.github+json header and an explicit X-GitHub-Api-Version header.

Fine-grained tokens only authorize repositories and permissions selected when the token is created.

cURL

curl -X POST 'https://uploads.github.com/repos/example-owner/example-repo/releases/10/assets?name=example-name&label=example-label' \  -H "Authorization: Bearer $GITHUB_TOKEN" \  -H 'Accept: application/vnd.github+json' \  -H 'X-GitHub-Api-Version: 2026-03-10' \  -H 'Content-Type: application/octet-stream' \  --data-binary 'example-body'

Parameters

Name	In	Type	Required	Description
owner	path	string	Yes	The account owner of the repository. The name is not case sensitive.
repo	path	string	Yes	The name of the repository without the `.git` extension. The name is not case sensitive.
release_id	path	integer	Yes	The unique identifier of the release.
name	query	string	Yes	query parameter name.
label	query	string	No	query parameter label.
body	body	string	No	The raw file data

Response 200 OK

{
  "url": "https://example.com",
  "browser_download_url": "https://example.com",
  "id": 0,
  "node_id": "string",
  "name": "Team Environment",
  "label": "string",
  "state": "uploaded",
  "content_type": "string",
  "size": 0,
  "digest": "string",
  "download_count": 0,
  "created_at": "2026-09-03T00:00:00Z",
  "updated_at": "2026-09-03T00:00:00Z",
  "uploader": {
    "name": "string",
    "email": "string",
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
    "url": "https://api.github.com/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://api.github.com/users/octocat/followers",
    "following_url": "https://api.github.com/users/octocat/following{/other_user}",
    "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
    "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
    "organizations_url": "https://api.github.com/users/octocat/orgs",
    "repos_url": "https://api.github.com/users/octocat/repos",
    "events_url": "https://api.github.com/users/octocat/events{/privacy}",
    "received_events_url": "https://api.github.com/users/octocat/received_events",
    "type": "User",
    "site_admin": true,
    "starred_at": "\"2020-07-09T00:17:55Z\"",
    "user_view_type": "public"
  }
}

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