---
title: "Add a vendor to the stack"
method: POST
path: "/api/v1/stack/vendors"
---

# Add a vendor to the stack

`POST /api/v1/stack/vendors`

## Request

- Base URL: `https://lvlupauto.com`
- URL: `https://lvlupauto.com/api/v1/stack/vendors`
- Auth: HTTP bearer

Add a catalog vendor to the dealer's stack. vendor_id MUST be a catalog id (search first); an unknown vendor returns 409 unresolved_vendor with a proposed candidate, never free-text.

## Request body

- object

## Response `200`

Success

## Other responses

- `401`: Unauthorized — invalid or missing token
- `403`: Insufficient scope
- `422`: Validation error
- `429`: Rate limited or cap exceeded

---

[API](https://skmtc.dev/lvlupauto/apis/lvl-up-auto-headless-api.md) · [All operations](https://skmtc.dev/lvlupauto/apis/lvl-up-auto-headless-api/llms.txt) · [OpenAPI document](https://skmtc.dev/lvlupauto/apis/lvl-up-auto-headless-api/revisions/805626b3a4ef?raw)