“Which MCP plugin should I actually install?” is a question we started getting often enough this year that it earned its own post. Every answer online points to a different GitHub repo, a different wp.org listing, or a comparison that is two months stale in a space that ships weekly. So this is a live comparison, checked against WordPress.org’s own plugin API and the actual repos, not a recycled roundup.
If you need the primer on what MCP itself is first, we have that covered elsewhere and will not repeat it here.
Also Read: What Is MCP in AI? A Plain-English Guide and What Is the Model Context Protocol? A WordPress Guide if you want the concept explained before the comparison.
Why There Is No “Official” Pick Yet
The most surprising finding in putting this together: WordPress core’s own MCP effort is not something you can install from the plugin directory today. Automattic’s original wordpress-mcp repository (941 GitHub stars) was archived, and its README says plainly that it “will be deprecated as stable releases of mcp-adapter become available.” The successor, WordPress/mcp-adapter, is the one currently active, described on its own GitHub page as “an MCP adapter that bridges the Abilities API to the Model Context Protocol, enabling MCP clients to discover and invoke WordPress plugin, theme, and core abilities programmatically.” It has 1.7k stars and regular commits. Neither one has a WordPress.org plugin listing. We confirmed this directly: both the wordpress-mcp and mcp-adapter slugs return “Plugin not found” from the WordPress.org plugin API.
Also Read: The WordPress Abilities API: What It Is and Why AI Tools Need It covers the registry that mcp-adapter builds on.
That gap is exactly why third-party plugins exist, and why the space is moving fast enough that a comparison from even three months ago is already out of date.
How We Compared These
Every install count, rating, and version number below came from the live WordPress.org plugin API on the day this was written, not a cached list or a vendor’s own claim. We looked at four things for each plugin: how many sites actually run it, what it exposes (a general toolset versus a narrow one), how it authenticates an AI client, and how current the plugin actually is.
| Plugin | Active Installs | Rating | Version | Auth |
|---|---|---|---|---|
| AI Engine | 100,000+ | 98/100 (862 reviews) | 3.7.4 | Not published in the listing we checked |
| Royal MCP | 10,000+ | 100/100 (7 reviews) | 1.4.45 | OAuth 2.0 + PKCE + Dynamic Client Registration, or API key with rate limiting |
| Easy MCP AI | 9,000+ | 100/100 (8 reviews) | 1.7.17 | Not published in the listing we checked |
| Enable Abilities for MCP | 2,000+ | 100/100 (9 reviews) | 2.8.0 | Self-hosted |
AI Engine: The Broad Framework With MCP Built In
AI Engine is not an MCP-first plugin. It is a full AI framework (chatbots, content generation, image generation) that added an MCP server as one capability among many, which is likely why it has the widest install base by a wide margin. If you want a single plugin that does chat, content tools, and MCP together, this is the obvious starting point. If you want a plugin that does one thing (expose your site to an MCP client) and does only that, its scope is broader than you may need.
Royal MCP: The Widest Toolset, With a Real Auth Story
Royal MCP is the plugin to look at if tool coverage and connection security both matter to you. Its listing describes roughly 85 WordPress-core tools plus another 120 spanning WooCommerce, Elementor, Divi, ACF, Yoast, and WPForms, auto-loading integrations as it detects what is installed. It is also the only plugin in this set that names a real auth handshake: OAuth 2.0 with PKCE and Dynamic Client Registration (RFC 7591) for clients that support it, falling back to a timing-safe API key with rate limiting for those that do not. The tradeoff is a thin review count (7) relative to its 10,000+ installs, so the rating is a strong early signal, not yet a large-sample one.
Easy MCP AI and Enable Abilities for MCP: The Free, Focused Options
Easy MCP AI sits close behind Royal MCP by install count (9,000+) and lists 243 tools including Google Analytics 4, Search Console, and SEO-specific actions, free. Enable Abilities for MCP is smaller (2,000+ installs) but distinct in approach: it is self-hosted and exposes 101 abilities across content, SEO, WooCommerce, FSE, and LMS use cases, which suits a team that wants the MCP layer to live entirely on infrastructure it controls rather than trusting a third-party auth flow.
Two smaller names worth knowing rather than installing yet: Agent Abilities for MCP (100+ installs, permission controls off by default, an audit log) and Cowboy MCP (90+ installs, free, notable for shipping an “undo” on AI-taken actions). Both are too new to judge on adoption, but the undo feature in particular is a real gap the larger plugins have not all solved.
Where Nexter Abilities Fits
To be direct about scope: Nexter Abilities is not a general-purpose site-management MCP tool like the four above. It is the MCP layer over Nexter Blocks specifically. Its own product page describes it as turning “Claude and any MCP-compatible AI assistant into a hands-on Gutenberg builder,” with 115 server-side tools that compose real Nexter Blocks from a prompt, screenshot, or URL, 68 of them on the free tier and the remaining 47 unlocked with Nexter Blocks Pro. It has been tested with Claude Desktop, Cursor, VS Code, Windsurf, Cline, Zed, and Continue.
If your goal is “let an AI assistant build pages with the blocks I already use,” it is a direct fit. If your goal is “let an AI assistant manage my whole site, including plugins it did not build,” it is the wrong tool, and one of the four above is the honest recommendation instead.
Also Read: MCP vs API: What’s the Difference, and When Your WordPress Site Needs Each if you are still deciding whether you need MCP at all versus the REST API.
Which One Should You Actually Install?
- Want one plugin that does chatbots, content tools, and MCP together: AI Engine, on install-base and review volume alone.
- Want the widest tool coverage across your existing plugins, with real OAuth: Royal MCP.
- Want a free, SEO-and-analytics-leaning toolset: Easy MCP AI.
- Want the MCP layer fully self-hosted, no third-party auth flow: Enable Abilities for MCP.
- Want an AI assistant to build pages with the blocks you already use, nothing broader: Nexter Abilities.
- Want to wait for WordPress core’s own answer: watch WordPress/mcp-adapter on GitHub. It is not installable yet, but it is the project most likely to become the default once it ships.
Whichever you pick, re-verify the install count, rating, and last-updated date yourself before committing. This is one of the fastest-moving corners of the plugin directory, and the numbers above will be stale sooner than most.
Suggested Reading
- What Is MCP in AI? A Plain-English Guide
- What Is the Model Context Protocol? A WordPress Guide
- MCP vs API: What’s the Difference
- The WordPress Abilities API: What It Is and Why AI Tools Need It
- WebMCP for WordPress
