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Free Plugin by Esteban v3.4.8

StifLi Flex MCP

The most secure MCP Server for WordPress with Undo, plus AI Copilot & Chat Agent. ChatGPT, Claude, Gemini, OpenRouter & Mistral.

StifLi Flex MCP

The facts

Rating
5★ from 4
Active installs
1k+
Price
Free
Last updated
16 Aug 2026
Added
Dec 2025
Requires WP
5.9
Tested up to
WP 7.0.4
Requires PHP
7.4
Downloads
29,034

Our analysis

AI-assisted

StifLi Flex MCP is a WordPress plugin designed for securely connecting to various MCP clients like ChatGPT and Claude Desktop. It features a built-in Undo function, allowing you to roll back changes as needed while managing your site through natural conversation.

This plugin is particularly suited for agencies or individuals managing multiple WordPress installations, as it provides a central point for managing these sites. It is open-source and free, with a focus on security and ease of use.

Best for: Agencies or individuals managing multiple WordPress sites who require secure and efficient content management.

What it does well

  • Free and open-source plugin
  • Built-in Undo feature for changes
  • Supports multiple MCP clients
  • Central management for multiple WordPress sites
  • Local-first architecture for security

Where it falls short

  • Limited information on optional addons
  • No detailed performance metrics provided

Verdict

StifLi Flex MCP offers a robust solution for integrating AI clients with WordPress, particularly for users needing to manage several installations. However, additional details on optional features would be beneficial.

From the developer

Esteban's own description of StifLi Flex MCP, lightly tidied.

StifLi Flex MCP is the most secure MCP Server for WordPress with built-in Undo. Connect ChatGPT, Claude Desktop, Gemini, and other MCP clients safely, roll back changes when needed, and manage your site through natural conversation without losing control.

🛰️ Manage many WordPress MCP sites from one place (free and open source)

If you are an agency or manage many WordPress installations, WP MCP Hub gives you one local central point for managing multiple WordPress MCP servers.

  • Open source and free — no paid hub, site limits, or subscription
  • One stable AI client setup — connect once and route to the right site
  • Local-first architecture — credentials stay in your operating system vault

Explore WP MCP Hub:
* https://andromedanova.com/wp-mcp-hub.html
* https://github.com/estebanstifli/wp-mcp-hub

Choose the layers your site needs without loading the rest:

  1. MCP Server (always active) — Connect ChatGPT, Claude Desktop, or any MCP client directly to your site. Includes Multimedia and Logs & Roll Back.
  2. AI Copilot (optional addon) — A floating assistant inside the Gutenberg and Classic editors that writes, rewrites, and optimizes your content in real time.
  3. AI Chat Agent (optional addon) — A full conversational interface to manage posts, WooCommerce, settings, and more.
  4. Automations, SEO, and Plugin Integrations (optional addons) — Enable only the workflows and integrations used on your site.

On first activation, a setup screen lets you select the addons to load. The default is the MCP Server layer only. You can change the selection later from StifLi Flex MCP → MCP Server → Add-ons.

🎬 Video: Claude to WordPress MCP Connector in 1 Minute

📚 Documentation

StifLi Flex MCP Documentation

Released in December 2025, StifLi Flex MCP was the first MCP plugin for WordPress and remains the most complete WordPress MCP platform for ChatGPT, Claude Desktop, and other MCP clients.
It starts with 122+ built-in MCP tools, and with supported integrations such as All Sources Images, Stifli Backup Tools, AiPatch Security Scanner, Notification for Telegram, WPCode, Code Snippets, Woody Snippets, Advanced Custom Fields, Yoast SEO, Rank Math, WPForms, Gravity Forms, Forminator, The Events Calendar, and Elementor, it can exceed 200 total tools depending on the plugins you install.

📡 MCP Server — Connect ChatGPT, Claude Desktop, and Other MCP Clients

StifLi Flex MCP includes a full standards-compliant MCP server for WordPress, so ChatGPT, Claude Desktop, LibreChat, and other MCP clients can connect directly to your site and use real WordPress tools through OAuth 2.1.

  • ChatGPT — Connect through Apps & Connectors with OAuth 2.1 authentication
  • Claude Desktop — Connect through Connectors with automatic OAuth flow
  • LibreChat and other MCP clients — Use the same MCP endpoint and discovery flow
  • Zero shared secrets — No custom API keys or passwords for external MCP clients
  • Standards-based — Automatic discovery, registration, and authentication with OAuth 2.1, PKCE, RFC 9728, RFC 8414, and RFC 7591

Just copy the SSE URL from the Settings page, paste it into ChatGPT, Claude Desktop, or another MCP client, and authorize.

Read the full description on the official page →

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