curl -X PATCH 'https://api.github.com/repos/example-owner/example-repo/environments/example-environment-name/variables/example-name' \
  -H "Authorization: Bearer $GITHUB_TOKEN" \
  -H 'Accept: application/vnd.github+json' \
  -H 'X-GitHub-Api-Version: 2026-03-10' \
  -H 'Content-Type: application/json' \
  -d '{}'

# PATCH /repos/{owner}/{repo}/environments/{environment_name}/variables/{name} (GitHub API)
Base URL: https://api.github.com
Auth: Authorization; GitHub token; required.
Request formats: application/json.
Last verified: 2026-10-20

> Update an environment variable

## 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 PATCH 'https://api.github.com/repos/example-owner/example-repo/environments/example-environment-name/variables/example-name' \
  -H "Authorization: Bearer $GITHUB_TOKEN" \
  -H 'Accept: application/vnd.github+json' \
  -H 'X-GitHub-Api-Version: 2026-03-10' \
  -H 'Content-Type: application/json' \
  -d '{}'

## 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... |
| name | path | string | Yes | The name of the variable. |
| environment_name | path | string | Yes | The name of the environment. The name must be URL encoded. For example, any s... |
| name | body | string | No | The name of the variable. |
| value | body | string | No | The value of the variable. |

## Response example
null

---
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PATCH

PATCH /repos/{owner}/{repo}/environments/{environment_name}/variables/{name} — GitHub API

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

GitHub API

Update an environment variable

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
→ 302 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 PATCH 'https://api.github.com/repos/example-owner/example-repo/environments/example-environment-name/variables/example-name' \  -H "Authorization: Bearer $GITHUB_TOKEN" \  -H 'Accept: application/vnd.github+json' \  -H 'X-GitHub-Api-Version: 2026-03-10' \  -H 'Content-Type: application/json' \  -d '{}'

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.
name	path	string	Yes	The name of the variable.
environment_name	path	string	Yes	The name of the environment. The name must be URL encoded. For example, any slashes in the name must be replaced with `%2F`.
name	body	string	No	The name of the variable.
value	body	string	No	The value of the variable.

Response 200 OK

null

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