WPThumbs
Themes Plugins By purpose By industry Best-of lists Fix it guides

Best WordPress Plugins for Oauth

15 plugins compared · Updated August 2026 · Oauth

All Free only 15 Premium only

Choosing a WordPress plugin for oauth comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 15 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 15 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

  1. 1. OAuth Single Sign On Best overall 85/100
  2. 2. Authorizer 84/100
  3. 3. Log in with Google 83/100
  4. 4. Royal MCP 82/100
  5. 5. WP OAuth Server 82/100
  6. 6. Gmail SMTP 81/100
  7. 7. JWT Authentication for WP REST API 79/100
  8. 8. SSO for Entra ID 79/100
  9. 9. IndieAuth 79/100
  10. 10. WP OAuth Server 78/100
  11. 11. Login for Google Apps 71/100
  12. 12. MCP Server for WordPress 68/100
  13. 13. MCP Content Manager Lite 65/100
  14. 14. WP REST API 57/100
  15. 15. WPO365 55/100
1 OAuth Single Sign On
Best overall Free by miniOrange

OAuth Single Sign On

WordPress OAuth SSO (Single Sign On) with Azure, Okta, Cognito, Keycloak, OAuth & OpenID Providers. Free Unlimited SSO Authentication [24/7 Support]

4.9★
from 323 ratings
6k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
85

WPScore

Read review View on WordPress.org
2 Authorizer
Free by Paul Ryan

Authorizer

Authorizer limits login attempts, restricts access to specific users, and authenticates against external sources (OAuth2, Google, LDAP, or CAS).

5★
from 20 ratings
5k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
84

WPScore

Read review View on WordPress.org
4 Royal MCP
Free by Royal Plugins

Royal MCP

170+ MCP tools. OAuth 2.0. Connect Claude, ChatGPT, Gemini, Cursor & any MCP agent to your WordPress site. 100% self-hosted.

5★
from 7 ratings
10k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
82

WPScore

Read review View on WordPress.org
5 WP OAuth Server
Free by miniOrange

WP OAuth Server

Single Sign-On using WordPress - Login with WordPress to your application/sites using your WordPress account. [24/7 Support]

4.9★
from 41 ratings
1k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
82

WPScore

Read review View on WordPress.org
6 Gmail SMTP
Free by Noor Alam

Gmail SMTP

Connect to Gmail SMTP server to automatically send email from your WordPress site. Configure wp_mail() to use SMTP with OAuth 2.0 authentication.

4.1★
from 103 ratings
10k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
81

WPScore

Read review View on WordPress.org
9 IndieAuth
Free by IndieWeb

IndieAuth

IndieAuth is a way to allow users to use their own domain to sign into other websites and services.

5★
from 4 ratings
400+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
79

WPScore

Read review View on WordPress.org
10 WP OAuth Server
Free by Jayson T Cote

WP OAuth Server

Adds Authentication through OAuth 2. Provides the ability for Single Sign On for websites & Mobile Applications.

3.8★
from 41 ratings
3k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
78

WPScore

Read review View on WordPress.org
11 Login for Google Apps
Free by Syed Balkhi

Login for Google Apps

Simple secure login and user management through your Google Workspace for WordPress (using oAuth2 and MFA if enabled).

4.6★
from 64 ratings
10k+
active installs
Updated
May 2025
Tested to
WP 6.8.8
71

WPScore

Read review View on WordPress.org
12 MCP Server for WordPress
Free by Azizul Hasan

MCP Server for WordPress

Secure MCP server for WordPress. Connect Claude, ChatGPT & Gemini via OAuth 2.1. 80+ AI abilities, block editor AI, RBAC & WooCommerce.

100+
active installs
Updated
Aug 2026
Tested to
WP 7.1
68

WPScore

Read review View on WordPress.org
13 MCP Content Manager Lite
Free by Jose Conti

MCP Content Manager Lite

Manage WordPress from Claude, ChatGPT, Copilot or any MCP client. 60+ abilities, OAuth 2.1, allowlists, activity log, multilingual and SEO read.

100+
active installs
Updated
Apr 2026
Tested to
WP 6.9.7
65

WPScore

Read review View on WordPress.org
14 WP REST API
Free by Joe Hoyle

WP REST API

Connect applications to your WordPress site without ever giving away your password.

3.7★
from 7 ratings
8k+
active installs
Updated
Aug 2024
Tested to
WP 6.6.7
57

WPScore

Read review View on WordPress.org
15 WPO365
Free by Marco van Wieren

WPO365

IMPORTANT - Please choose the WPO365 | MICROSOFT 365 GRAPH MAILER plugin instead. This plugin is no longer supported and does not receive updates.

4.9★
from 26 ratings
1k+
active installs
Updated
Jun 2024
Tested to
WP 6.1.12
55

WPScore

Read review View on WordPress.org