---
title: "Refresh"
method: POST
path: "/v1/auth/refresh"
tags: ["auth"]
---

# Refresh

`POST /v1/auth/refresh`

Refresh an expired access token using a fresh client to avoid contamination.

## Request body

- RefreshRequest
  - `refresh_token` string, required

## Response `200`

Successful Response

- LoginResponse
  - `access_token` string, required
  - `refresh_token` string, required
  - `expires_at` integer, nullable
  - `user` object, nullable

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/sigmanticai/apis/sigmanticai-gateway.md) · [All operations](https://skmtc.dev/sigmanticai/apis/sigmanticai-gateway/llms.txt) · [OpenAPI document](https://skmtc.dev/sigmanticai/apis/sigmanticai-gateway/revisions/15fa2b3394e5?raw)