---
title: "Update Variable"
method: PATCH
path: "/api/v1/variables/{variable_id}"
tags: ["Variables"]
---

# Update Variable

`PATCH /api/v1/variables/{variable_id}`

Update a variable.

## Path parameters

- `variable_id` string, uuid, required

## Request body

- VariableUpdate
  - `id` string, uuid, required
  - `name` string, nullable — Name of the variable
  - `value` string, nullable — Encrypted value of the variable
  - `default_fields` string[], nullable — Default fields for the variable

## Response `200`

Successful Response

- VariableRead
  - `id` string, uuid, required
  - `name` string, nullable — Name of the variable
  - `type` string, nullable — Type of the variable
  - `value` string, nullable — Encrypted value of the variable
  - `default_fields` string[], nullable — Default fields for the variable

## Other responses

- `422` — Validation Error

## Changes

- **2026-02-18** `191b57fc530b` — 1 info
  - endpoint added
- **2026-02-10** `0be341779529` — 1 breaking
  - api path removed without deprecation
- **2025-10-16** `9bd3e81318d7` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/langflow-ai/apis/langflow/changes/api/v1/variables/:variable_id/patch.md)

---

[API](https://skmtc.dev/langflow-ai/apis/langflow.md) · [All operations](https://skmtc.dev/langflow-ai/apis/langflow/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/langflow-ai/langflow/revisions/191b57fc530b/schema)