---
title: "Proxy On V1"
method: OPTIONS
path: "/gateway/on/v1/{path}"
---

# Proxy On V1

`OPTIONS /gateway/on/v1/{path}`

A/B on-arm — forces gateway transformers on for this request only.

## Path parameters

- `path` string, required

## Headers

- `X-AI21-Key` string

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

## Changes

> 23 revisions in range; 4 could not be searched.

- **2026-08-18** `a8520b82cb42` — 1 info
  - api operation id `proxy_on_v1_gateway_on_v1__path__put` removed and replaced with `proxy_on_v1_gateway_on_v1__path__options`
- **2026-08-16** `99d09fd562cf` — 1 info
  - api operation id `proxy_on_v1_gateway_on_v1__path__options` removed and replaced with `proxy_on_v1_gateway_on_v1__path__put`
- **2026-08-13** `f5e7bd202614` — 1 info
  - api operation id `proxy_on_v1_gateway_on_v1__path__patch` removed and replaced with `proxy_on_v1_gateway_on_v1__path__options`
- **2026-08-12** `d503e3372c3a` — 1 info
  - api operation id `proxy_on_v1_gateway_on_v1__path__post` removed and replaced with `proxy_on_v1_gateway_on_v1__path__patch`
- **2026-08-11** `6477b567ced1` — 1 info
  - api operation id `proxy_on_v1_gateway_on_v1__path__put` removed and replaced with `proxy_on_v1_gateway_on_v1__path__post`

[Full history](https://skmtc.dev/ai21/apis/ai21-studio-api/changes/gateway/on/v1/:path/options.md)

---

[API](https://skmtc.dev/ai21/apis/ai21-studio-api.md) · [All operations](https://skmtc.dev/ai21/apis/ai21-studio-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/ai21/ai21-studio-api/revisions/3f6518084a64/schema)