---
title: "Proxy On V1"
method: PATCH
path: "/tokenwise/on/v1/{path}"
---

# Proxy On V1

`PATCH /tokenwise/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; 20 could not be searched.

- **2026-07-13** `c843c7fcf219` — 1 info
  - api operation id `proxy_on_v1_tokenwise_on_v1__path__options` removed and replaced with `proxy_on_v1_tokenwise_on_v1__path__delete`
- **2026-07-13** `6df25106f90e` — 1 info
  - api operation id `proxy_on_v1_tokenwise_on_v1__path__post` removed and replaced with `proxy_on_v1_tokenwise_on_v1__path__options`

[Change history](https://skmtc.dev/ai21/apis/ai21-studio-api/changes/tokenwise/on/v1/:path/patch.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)