---
title: "Changes to Start Authentication"
method: POST
path: "/api/authenticate"
---

# Changes to Start Authentication

`POST /api/authenticate`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 11 revisions.

- **2026-10-17** `b3968f1bc1f0`: 1 info
- **2026-05-24** `93a6dfdeeb67`: 12 breaking, 3 warning, 12 info

## Changes

- **2026-10-17** `b3968f1bc1f0`: 1 info
  - added the new `gb` enum value to the request property `proxyCountry`
- **2026-05-24** `93a6dfdeeb67`: 12 breaking, 3 warning, 12 info
  - removed the enum value `cz` of the request property `proxyCountry`
  - removed the enum value `de` of the request property `proxyCountry`
  - removed the enum value `es` of the request property `proxyCountry`
  - removed the enum value `fr` of the request property `proxyCountry`
  - removed the enum value `hu` of the request property `proxyCountry`
  - removed the enum value `it` of the request property `proxyCountry`
  - removed the enum value `pl` of the request property `proxyCountry`
  - removed the enum value `ro` of the request property `proxyCountry`
  - removed the enum value `sk` of the request property `proxyCountry`
  - removed the enum value `ua` of the request property `proxyCountry`
  - added `subschema #1, subschema #2` to the response body `oneOf` list for the response status `200`
  - the response's body type changed from `object` to no type for status `200`
  - removed the optional property `attempt_id` from the response with the `200` status
  - removed the optional property `message` from the response with the `200` status
  - removed the optional property `polling_url` from the response with the `200` status
  - added the new optional request property `auth_id`
  - added the new optional request property `auth_type`
  - added the new optional request property `cookies`
  - added the new optional request property `customProxy`
  - added the new optional request property `force_connect`
  - added the new optional request property `name`
  - added the new optional request property `user_agent`
  - added the new optional request property `xbc`
  - request body became optional
  - the request property `email` became optional
  - the request property `password` became optional
  - the request property `proxyCountry` became optional

---

[Operation](https://skmtc.dev/onlyfansapi/apis/onlyfans-api/docs/api/authenticate/post.md) - [API](https://skmtc.dev/onlyfansapi/apis/onlyfans-api.md) - [Page](https://skmtc.dev/onlyfansapi/apis/onlyfans-api/changes/api/authenticate/post)