---
title: "Update Env Var"
method: PATCH
path: "/v2/env-vars/{var_id}"
tags: ["env-vars"]
---

# Update Env Var

`PATCH /v2/env-vars/{var_id}`

Update a registry env var's value.

## Path parameters

- `var_id` string, uuid, required

## Request body

- RegistryEnvVarUpdateRequest
  - `value` string, nullable

## Response `200`

Successful Response

- RegistryEnvVarItem
  - `id` string, uuid, required
  - `registry_id` string, uuid, required
  - `name` string, required
  - `value` string, nullable
  - `masked_value` string, nullable

## Other responses

- `400` — Invalid or malformed request
- `401` — Missing or invalid credentials
- `403` — Caller may not access this resource
- `404` — Referenced entity does not exist
- `409` — Resource already exists
- `422` — Validation Error

---

[API](https://skmtc.dev/hud/apis/hud-platform.md) · [All operations](https://skmtc.dev/hud/apis/hud-platform/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/hud/hud-platform/revisions/58558fc733d9/schema)