---
title: "Vertex Proxy Route"
method: PATCH
path: "/vertex_ai/{endpoint}"
tags: ["Vertex AI Pass-through", "pass-through"]
---

# Vertex Proxy Route

`PATCH /vertex_ai/{endpoint}`

Call LiteLLM proxy via Vertex AI SDK.

[Docs](https://docs.litellm.ai/docs/pass_through/vertex_ai)

## Path parameters

- `endpoint` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-03** `add3be20be03` — 1 info
  - api operation id `vertex_proxy_route_vertex_ai__endpoint__patch` removed and replaced with `vertex_proxy_route_vertex_ai__endpoint__get`

[Change history](https://skmtc.dev/koboillm/apis/litellm-api/changes/vertex_ai/:endpoint/patch.md)

---

[API](https://skmtc.dev/koboillm/apis/litellm-api.md) · [All operations](https://skmtc.dev/koboillm/apis/litellm-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/koboillm/litellm-api/revisions/add3be20be03/schema)