### Legacy Foursquare v2 API Only

If you added Foursquare after 11/18/21, you automatically have access to the new version (v3) of the API. Please refer to our [Places API documentation](https://docs.foursquare.com/developer/reference/places-api-overview) to ensure you're viewing the correct information to successfully implement Foursquare technology!

For those who are already using the current (v2) version of the API, you may continue to do so or elect to upgrade now. Please contact [Foursquare Developer Support](https://foursquare.atlassian.net/servicedesk/customer/portal/31) for more information.

The legacy Foursquare API - denoted by `v2` - uses OAuth for [authentication](https://docs.foursquare.com/developer/reference/authentication-v2) allowing both "userless" and "user" auth methods.

## Client ID & Secret

Both userless and user authentication methods require the use of your unique Client ID and Client Secret.

To find your Client ID and Client Secret:

1. From your **Developer Console** home page, select the **Project** you wish to view settings for.
2. On the **Project Settings** page, under the **OAuth Authentication** section, find the **Client ID** and **Client Secret** fields.

### Reset Client Secret

You can reset your Client Secret any time by clicking **Reset Client Secret** at the bottom of the **OAuth Authentication** section.

## Project & Privacy URLs

For the user authentication method in which you want a Foursquare or Swarm user to log in with their Foursquare account and require their permission to do so, we also require the following URLs:

- **Project URL**
- **Privacy Policy URL**
- **Redirect URL**

These URLs are provided to the end users during the logging in process for reference.

Updated 5 months ago