---
title: "Generate OAuth access token for conversion API"
method: POST
path: "/oauth/conversion_token"
tags: ["oauth"]
---

# Generate OAuth access token for conversion API

`POST /oauth/conversion_token`

Generate a new and long-lived OAuth access token dedicated for sending conversions using a valid access token.

## Response `200`

The request has succeeded.

- ConversionAccessToken — A successful conversion access token response.
  - `access_token` string, required
  - `token_type` string

## Other responses

- `400` — The request could not be understood by the server due to unexpected data.
- `401` — Authentication is required and has either failed or not been provided.
- `403` — The request was valid, but the server is refusing action. The user might not have the necessary permissions for a resource.
- `404` — The requested resource could not be found on this server.
- `429` — The user has sent too many requests in a given amount of time and is being rate limited.
- `default` — An unexpected error response.

## Changes

- **2026-06-04** (v5) `b698c180678a` — 5 info
  - added the non-success response with the status `400`
  - added the non-success response with the status `401`
  - added the non-success response with the status `403`
  - added the non-success response with the status `404`
  - …1 more
- **2025-12-11** (v5) `79f62f71f05b` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/pinterest/apis/pinterest-rest-api/changes/oauth/conversion_token/post.md)

---

[API](https://skmtc.dev/pinterest/apis/pinterest-rest-api.md) · [All operations](https://skmtc.dev/pinterest/apis/pinterest-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/pinterest/pinterest-rest-api/revisions/b698c180678a/schema)