NextBlock™ Cortex AI MCP Server & AI Editor License
NextBlock™ Cortex AI is the AI layer for your free, open-source CMS. Pick an OpenRouter model for the editor with your own key, or register /api/mcp so Claude Code, Cursor, VS Code, or Codex can build layouts, inspect your schema, and manage content on the AI plan you already pay for. Free for 30 days, no credit card.
MCP-Native AI Layer · 30-Day Free Trial
Your CMS as a Cortex AI MCP Server.
Cortex AI runs two ways. Inside the editor it runs on the OpenRouter model you choose, with your own key. Over MCP it turns NextBlock into a server that Claude Code, Cursor, VS Code, and Codex operate from their own chat.
The CMS is free and open source under the AGPL. Cortex AI is a premium module, like Commerce Pro, and it starts with a 30-day free trial and no credit card.
Bring Your Own AI Subscription
- ✓Free for 30 days — start the trial with no credit card. If you do nothing, it simply ends.
- ✓No token markup — register /api/mcp in Claude Code, Cursor, VS Code, or Codex, and the agent runs on the AI plan you already pay for, such as Claude Pro or ChatGPT Plus. You pay your provider, not us.
- ✓Editor BYOK — one OpenRouter key, free models included. You pick the model and keep the bill.
- ✓Scoped tokens — mint read-only or write tokens on the MCP server access card and revoke them any time.
- ✓Drafts and revisions — page rewrites stage as Live Drafts, and new pages stay drafts unless you ask to publish. Other write tools can change live content, and page, post, and product edits are saved as revisions you can restore.
30Days free, no card
0 %Token markup
6MCP contract tools
50Typed agent tools
get_database_schema
Returns every table the agent may read or change, with columns, keys, and read-only flags. The model plans against real structure, not guesses.
query_site_analytics
Reads revenue, order counts, status breakdowns, and top products over a date range. Read-only, so it is safe on any token.
generate_jsonb_layout
Rewrites an existing page or post as a complete layout. Blocks are validated against the NextBlock schema and staged as a Live Draft.
search_stock_media
Finds free stock photos on Pexels or Unsplash, with alt text and credits, using your free API key. Drop a result straight into an image block.
update_site_navigation
Adds, renames, or reorders header menu items per locale. Append to keep the current menu or replace it in one call.
and 45 more
create_page_layout builds a new page from validated blocks in one call. The rest create posts and products, translate pages, upload media, and manage themes, menus, and scripts. Every tool is typed and scoped.
How It Works
One Registry, Standard Transport.
The Cortex AI MCP server speaks Streamable HTTP at /api/mcp. Your client posts JSON-RPC messages and gets typed results back. There is no SDK to install on your server and no proxy in the middle.
- →Bearer tokens are stored as SHA-256 hashes and shown once.
- →Optional localhost trust lets a local dev server skip the token. It never applies in production.
- →Read-only tokens never see a mutating tool in the list.
- →Copy-paste config for Claude Code, Codex, Cursor, VS Code, and Claude Desktop.
Editor BYOK via OpenRouter
Choose one model for the whole site in Cortex AI settings, from Claude or Gemini to open weights, with one key. Free models are included, and paid usage stays on your OpenRouter bill.
AI Inside the Editor
The inline assistant writes and rewrites copy in any text block. The dashboard chat edits sections, builds pages, and translates whole pages, and every block is validated before it is saved.
Privacy-First Design
Editor requests go from your own server to OpenRouter with your key, and MCP traffic runs between your AI app and your site. NextBlock never sees, stores, or trains on your content.
Ready to connect your AI to your CMS?
One license unlocks Cortex AI in the editor and the MCP server. Start with 30 days free and no credit card, bring your own AI subscription, and keep your data yours.
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