WordPress MCP comparison
Every WordPress MCP server, side by side.
AI Engine, WPVibe, Novamira, and the official WordPress MCP Adapter, on everything that decides the choice: how you sign in, where your credentials live, which clients connect, what an agent is allowed to do, and what it costs. Every value is verified and every project is linked. Judge for yourself.
| Criteria | AI Engine | WPVibe | Novamira | WordPress MCP Adapter |
|---|---|---|---|---|
| How you sign in | OAuth 2.1, sign in with WordPress No token to paste. PKCE plus Dynamic Client Registration, or a bearer token. | Application Password Stored on their cloud. | Application Password | Application Password or JWT No OAuth on self-hosted sites yet. |
| Connection model | Self-hosted, direct Your MCP client talks straight to your site. | Cloud relay Traffic passes through their Cloudflare servers. | Self-hosted, direct | Self-hosted, direct Runs inside your WordPress. |
| Where credentials live | Your site only Nothing is stored anywhere else. | Their Cloudflare servers Your Application Password is kept on their cloud. | Your site only | Your site only |
| Clients | Claude, Claude Code, ChatGPT, Cursor, Windsurf Any MCP client over streamable HTTP. | Your MCP client Through their cloud relay. | Your MCP client Direct. | Claude Desktop, Claude Code, Cursor, VS Code As documented. |
| Tools | Around 100 About 39 in the free version. | 27 | Unbounded Anything PHP eval can reach. | 6 by default More as plugins register abilities. |
| What an agent may do | Curated, capability-gated tools No code execution. An agent can only do what its user may do. | Command allowlist Approval gates on risky commands. | Arbitrary PHP and filesystem Remote code execution by design (RCE). | Public abilities only Each behind its own permission check. |
| Meant for production | Yes Running on 100,000+ live sites. | Yes | Development and staging only Their own guidance. | Not stated No production or beta label in its documentation. |
| What it is | MCP server plus a full AI framework Chatbots, forms, search and images in the same plugin. | MCP server only | MCP server only | MCP bridge for the Abilities API Exposes the abilities plugins register. |
| AI model source | 8 built-in providers, plus your MCP client OpenAI, Anthropic, Google, Mistral, xAI, Perplexity, OpenRouter, Replicate. | Your MCP client No providers of its own. | Your MCP client No providers of its own. | Your MCP client No providers of its own. |
| Price | Free, MCP included Pro license, no monthly usage caps. | Free with daily caps Then $19 per month. | Free Pro from 49 euro per year. | Free, open source WordPress 6.9 or later. |
| On the WP.org repository | Yes 100,000+ installs. | Yes 2,000 installs. | No | No GitHub releases or Composer. |
| Beyond MCP | Chatbots, forms, RAG, image generation Semantic search included. | No | No | No MCP bridge only. |
| How it grows | Word of mouth | The Awesome Motive network WPBeginner, WPForms, YouTube. | Paid YouTubers and blog posts | Official WordPress project Announced on the WordPress developer blog. |
AI Engine, WPVibe and Novamira verified against the current code and public sources, July 2026. WordPress MCP Adapter values from the WordPress developer blog (February 2026) and its README, checked September 2026. The three others are MCP servers only, so the AI model comes from whatever client you connect; AI Engine is both an MCP server and its own multi-provider AI framework. And if you want raw PHP execution like Novamira, a free dev-only companion plugin adds it to AI Engine: AI Engine YOLO.
Go deeper
One page per rival.
Self-hosted versus cloud relay. Where your credentials live, and what "free" means.
Curated tools versus arbitrary PHP execution. Production versus staging-only.
Where AI Engine sits relative to core, the Abilities API, and provider plugins.
Ready to vibe with WordPress?
The MCP server, the chatbot, and the whole AI framework. One plugin, free on wp.org.
Free on WordPress.org. The MCP server is included, with no monthly caps.