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New Lucid MCP Server Features: Codex, Read-Only server, ERDs, API Keys, & Shape discovery

  • July 16, 2026
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Kelsey Gaag
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Hey community! 👋 We have some massive updates to the Lucid MCP (Model Context Protocol) server that we are incredibly excited to share. Whether you are trying to build autonomous AI pipelines, keep your enterprise data locked down, or turn raw code into beautiful diagrams, these new capabilities are designed to make connecting Lucid with LLMs smoother, safer, and significantly smarter.

 

What’s New 🎉

MCP connector for Codex

You can now easily connect Lucid directly to Codex. This connector lets you generate diagrams straight from raw codebases and manage development workflows, summarize documents, edit, and more without ever leaving the interface. 

Lucid Codex Connector

Lucid read-only MCP server

For our security-conscious teams, you can now give LLMs permission to view and search Lucid content without granting edit permissions with this MCP server variation. You get all the AI context with zero risk of accidental document modification.

Lucid read-only MCP server features

Data-backed ERD generation

Want to build database schemas via an LLM? Now you can create data linked entity relationship diagrams in Lucid directly from structured schemas. This ensures your AI-generated diagrams stay fully actionable and technically accurate for developers.

Data-backed ERD generation

Bypass popups with API Key Authentication

We’ve added support for API keys so background tasks and autonomous agents can run seamlessly. This eliminates bottlenecks, allowing your automated AI pipelines to do their thing in the background without manual OAuth login popups getting in the way.

Copilot Studio example API key authentication for the Lucid MCP

Intelligent Shape Discovery

No more AI guesswork, this feature enables LLMs to intelligently search and utilize shape libraries in Lucid for diagram generation, making AI-driven diagramming more accurate and context-aware right from the jump.

 

Improved diagram generation with new shape discovery tools

👉 Ready to try these features out ? Check out the full details and learn more about the Lucid MCP server here.