AI in Éclair: the built-in assistant and the MCP connector

Éclair is an AI CMS: a built-in assistant with your API key and an MCP connector for Claude and ChatGPT. Drafts in your voice, nothing published without you.

Contents
  1. Built-in assistant or MCP connector: which one should you choose?
  2. What does the built-in AI assistant do?
  3. How do you create an entire page with AI?
  4. How does the MCP connector for Claude and ChatGPT work?
  5. Which Claude and ChatGPT plans are compatible?
  6. What can you ask the AI?
  7. Does your site stay under your control?
  8. Why an AI CMS rather than a chatbot on the side?
  9. Questions about AI in Éclair

Éclair is an AI CMS designed so that artificial intelligence helps you without ever replacing you: it prepares, you decide. You can use it in two ways, separately or together: the assistant built into the admin, with your own API key, or the MCP connector, which opens your site to Claude or ChatGPT with the subscription you already have.

On the left, the page where Claude asks for access to the site: read content, create drafts, suggest changes, never publish or delete. On the right, Settings › AI assistant with the MCP connector URL and the connected apps.
The MCP connector: Claude or ChatGPT reads your site and prepares drafts; only you publish.

Built-in assistant or MCP connector: which one should you choose?

Both give the AI the same tools and the same safeguards. The difference lies in where you work and how you pay.

CriterionBuilt-in assistantMCP connector
Where you workIn the Éclair admin (Ctrl+J)In Claude or ChatGPT, on the web or in the desktop app
What you payYour API key, for what you actually use: about $0.24 per full post with Claude Opus 5.5Nothing more: your Claude or ChatGPT subscription does the work
ImagesYes: GPT Image 2.5, FLUX 3 or Ideogram 3, about $0.05 per imageNo, so that the connector never costs the site anything
Best forWriting and touching up without leaving the editorPeople who already live in Claude or ChatGPT

Prices as of October 29, 2026, from the official Anthropic and OpenAI pages: the per-model breakdown is in the AI assistant documentation.

What does the built-in AI assistant do?

You talk to it as you would to a colleague: “Write an article about servicing an e-bike, with an image.” It checks that the topic isn’t already covered, creates the image, writes the complete draft in your site’s voice and shows it to you with its SEO and GEO scores.

Éclair’s AI assistant creates the image and the complete draft of an article, scored SEO 91 and GEO 100
A request in plain language, a complete draft with its image and its scores.

Safeguards are on by default: a monthly budget of $10, checked before each step, 60 requests per person per day, and keys that are encrypted and excluded from backups. Full instructions: the AI assistant, step by step.

How do you create an entire page with AI?

New in Éclair 1.7, and it’s what makes it a true AI CMS: in a new piece of content (page, post or product), the ✨ Create with AI box composes a complete draft in a single call.

  1. Describe your page in one or two sentences, then, if you like, add its goal (“get quote requests”), its audience, its tone and the sections you want (“banner, benefits, pricing, FAQ, contact”).
  2. The estimated cost is shown before you start: about $0.08 with Claude Sonnet 5.5 and $0.16 with Claude Opus 5.5, taken from the assistant’s budget.
  3. After 20 to 60 seconds, the draft opens in Visual mode: title, URL, SEO title, meta description, “Key takeaways” and a layout in sections, with your real pages for the links and your images.

The AI makes nothing up: a missing price, opening hours or figure stays flagged with a “To complete” marker, and the SEO analysis reminds you until it’s filled in. The draft is never published without you. Costs estimated by Éclair’s guide, based on Anthropic’s prices: $2 / $10 per million input / output tokens for Claude Sonnet 5.5, $4 / $20 for Claude Opus 5.5 (as of October 31, 2026).

How does the MCP connector for Claude and ChatGPT work?

MCP (Model Context Protocol) is the open standard that connects AI assistants to tools. Éclair has an MCP server built in: once you’ve added the connector in Claude or ChatGPT, your AI reads your content, gets your editorial profile and Éclair’s SEO and GEO rules, writes drafts and prepares changes. No API key, no cost for the site.

  1. Your site uses HTTPS: Claude and ChatGPT refuse any other URL.
  2. In Settings › AI assistant, turn on Allow MCP connections and copy the connector URL (it ends with /_eclair/mcp).
  3. Add it in Claude (Customize › Connectors) or in ChatGPT (Plugins), then give your approval on your site.

Each draft comes back with a link to open it in Éclair; each suggestion opens in the editor without being saved: you review it, then save it, or you close it and nothing changes. Since 1.7, your AI can also compose an entire page in sections (banner, features, FAQ, buttons…), just like the built-in assistant. The detailed steps are in the MCP connector guide.

Which Claude and ChatGPT plans are compatible?

PlanRead the siteDrafts and suggestions
Claude Free, Pro, Max, Team, Enterprise✅✅ (Free: only one custom connector)
ChatGPT Business, Enterprise, Edu✅✅
ChatGPT Pro✅❌ (read-only)
ChatGPT, other plansnot listed in OpenAI’s help

Plans checked on October 30, 2026, in Claude’s help on custom connectors and OpenAI’s help on custom MCP servers. They change quickly: check in your app.

What can you ask the AI?

Does your site stay under your control?

Yes, and that’s at the heart of Éclair’s design:

The technical details, security review included, are in Éclair’s security.

Why an AI CMS rather than a chatbot on the side?

A chatbot on its own knows nothing about your site, your existing pages or the rules of SEO. In an AI CMS like Éclair, the AI works inside your site: it avoids topics you’ve already covered, creates internal links to your real pages, follows your editorial profile and delivers drafts that are already scored for SEO and GEO. You go from an idea to a page ready to review in a few minutes, without any copying and pasting.

Questions about AI in Éclair

Do I have to pay to use AI in Éclair?

Éclair is free. The MCP connector adds no cost: your Claude or ChatGPT subscription does the work. The built-in assistant uses your own API key, billed by the provider for what you actually use: about $0.24 per full post with Claude Opus 5.5 (prices as of October 29, 2026).

Can the AI publish or delete a page for me?

No. Both the assistant and the connector create drafts and prepare suggested changes. Only you publish, in Éclair’s editor.

Can the AI create a complete page?

Yes, since Éclair 1.7: describe the page and the AI composes a complete draft in sections, with its title and description for Google, which opens in Visual mode. Expect about $0.08 with Claude Sonnet 5.5 in the built-in assistant; with the MCP connector, your subscription does the work.

Which ChatGPT plans work with the MCP connector?

According to OpenAI’s help, checked on October 30, 2026: Business, Enterprise and Edu to read and write, Pro read-only. On the Claude side, every plan works, with only one custom connector on Free.

Can I use the built-in assistant and the MCP connector at the same time?

Yes. They share the same tools and the same safeguards: you can write in ChatGPT in the morning and touch up in Éclair’s editor in the afternoon.

Does the MCP connector work on shared hosting?

Yes, as long as the site uses HTTPS. On Apache, keep Éclair’s .htaccess file up to date: it passes along the authorization header that some hosts strip.

Download Éclair 1.7.0

Set up the MCP connector