Elementor Ultra MCP

The agent control surface for Elementor. A Model Context Protocol server + companion WordPress plugin that let AI agents read, build, refactor and govern real Elementor sites the way engineers ship software — Editor V4 atomic elements first, V3 classic fallback — with authoritative server-side validation, diffs, backups and rollback on every write.

• packages/server — TypeScript MCP server: 91 tools (elementor.page.*, widget, design, templates, media, nav, pro.*, HTML→Elementor convert), stdio + HTTP transports, lean/full tool profiles.

• plugin/elementor-ultra-mcp — WordPress plugin exposing the authoritative REST seam (/wp-json/elementor-ultra/v1/*): every write goes through Elementor's own Document::save() with backup snapshots, optimistic concurrency (base_hash), idempotency (op_id) replay, the authoritative validator, and mandatory CSS priming.

• packages/shared — the frozen contract surface: REST route registry, error taxonomy, JSON-schema mirrors, golden fixtures. Byte-identical to spec/contracts/schemas (CI-guarded).

• spec/ — the full engineering record: contracts, spike verdicts and work packages the system was built against.

Pairs with elementor-jsx — the JSX→Elementor compiler whose deploys ride this plugin's REST seam.

Quickstart (use it with an agent)

1. Install the companion plugin on your WordPress site (zip from Releases; requires Elementor ≥ 4.1) and create an application password.

2. Wire the server into your MCP client (.mcp.json):

{
  "mcpServers": {
    "elementor-ultra": {
      "command": "node",
      "args": ["/path/to/elementor-ultra-mcp/packages/server/dist/index.js"],
      "env": {
        "WP_URL": "https://your-site.com",
        "WP_USER": "admin",
        "WP_APP_PASSWORD": "xxxx xxxx xxxx xxxx xxxx xxxx",
        "ULTRA_TOOLS": "full",
      },
    },
  },
}

3. Ask your agent to list pages, dry-run a tree, build a page. Every mutation is validated by Elementor's own parsers server-side before anything saves; invalid trees are rejected atomically with a taxonomy error code.

Related MCP server: Kleap

Licensing

• TypeScript packages (packages/*): MIT © 2026 Algorismus

• WordPress plugin (plugin/elementor-ultra-mcp): GPL-2.0-or-later (WordPress convention)

Not affiliated with or endorsed by Elementor Ltd — "Elementor" is their trademark; this is an independent integration that targets their page format.

Prerequisites

You do not need PHP or Composer on the host; the PHP tooling runs inside the wp-env container.

Install & build

pnpm install        # installs all workspace deps; writes/uses pnpm-lock.yaml
pnpm build          # turbo: compiles packages/shared + packages/server (strict TS)
pnpm lint           # eslint (typescript-eslint, recommended-type-checked) across the workspace
pnpm format:check   # prettier --check
pnpm test:unit      # turbo: vitest run in each package

Running the server bin (no tools wired yet)

After pnpm build, the server bin exists at packages/server/dist/index.js. With no env set it prints a clear message and exits cleanly (exit code 0):

node packages/server/dist/index.js
# -> elementor-ultra-mcp: missing required environment variable(s): WP_URL, WP_USER, WP_APP_PASSWORD. ...

When configured, it reads the following environment variables:

The real transport binding + tool registry are added by WP-T01 in packages/server/src/server.ts. The bin (index.ts) lazily import()s ./server.js and prints "server core not yet wired" until that module exists — so the bin compiles and boots standalone on this scaffold.

Local WordPress dev site (wp-env)

The dev site uses @wordpress/env and pins Elementor 4.1.1 + Elementor Pro 4.1.0 exactly via local plugin zips (not the wp.org slug, which pulls the latest version and does not host Pro at all).

Where the plugin zips live (and where Pro must be placed)

.wp-env.json references two local zips under .wp-env-plugins/ (a gitignored directory):

.wp-env-plugins/
├─ elementor.4.1.1.zip        # Elementor free 4.1.1
└─ elementor-pro.4.1.0.zip    # Elementor Pro 4.1.0  (licensed; not on wp.org)

These zips are not committed (they are licensed binaries and are gitignored). After a fresh clone you must place them yourself:

mkdir -p .wp-env-plugins
cp /path/to/elementor.4.1.1.zip      .wp-env-plugins/elementor.4.1.1.zip
cp /path/to/elementor-pro.4.1.0.zip  .wp-env-plugins/elementor-pro.4.1.0.zip

The exact filenames above must match the paths in .wp-env.json.

Start / stop

pnpm wp-env:start   # boots WordPress + Elementor 4.1.1 + Pro 4.1.0; mounts the companion plugin
pnpm wp-env:stop

.wp-env.json also mounts ./plugin/elementor-ultra-mcp as a plugin. That directory's contents (the bootstrap, composer.json, phpcs.xml.dist, readme.txt, and includes/) are created by WP-P01; once they land the companion plugin is activatable in the wp-env site. The plugin's own Composer/PHPCS configuration is also provided by WP-P01.

Monorepo layout

elementor-ultra-mcp/
├─ packages/
│  ├─ server/      # TS MCP server (bin: elementor-ultra-mcp)
│  └─ shared/      # shared types + JSON Schemas + fixtures
├─ plugin/
│  └─ elementor-ultra-mcp/   # companion WP plugin (PHP) — populated by WP-P01
├─ spec/           # frozen architecture + contracts + work packages
├─ .wp-env.json    # pins Elementor 4.1.1 + Pro 4.1.0 (local zips) + mounts the plugin
└─ (root tooling: pnpm-workspace.yaml, turbo.json, tsconfig.base.json, eslint, prettier)

MCP SDK pin (LOCKED)

packages/server pins @modelcontextprotocol/sdk ^1.29 with zod as a required peer. Never add any @modelcontextprotocol/* 2.x package — in 1.x, inputSchema/outputSchema are ZodRawShape maps and transports are deep .js imports. CI guards against a 2.x dependency appearing in the lockfile (WP-F07).