The MCP MCP server,
connected in one click.
Generate, edit, and export data-architecture diagrams from your AI. Column lineage, PNG in chat. Connect the official MCP MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
What your AI can do with MCP
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “get_design_guide”: Datadef's standard for what makes a diagram readable, size, edge discipline, nested zones, annotations, and the tool order for building or e.”
“Use “canvas_describe_canvas”: Get an overview of the current canvas: every node with its id, type, label and group, plus all connections and groups. Call this first, befo.”
“Use “canvas_inspect_nodes”: Get full detail for specific nodes: all columns with types and keys, metadata, schedule, formula, owners. Use before modifying a node so you.”
“Use “canvas_measure_canvas”: Get exact geometry: every node's position and size in canvas units, the overall canvas bounds, and any nodes that overlap each other. Call t.”
How secure is the MCP MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how MCP holds up.
Official endpoint
Operated by MCP (datadef.io) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If MCP adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick MCP
Choose MCP in the gate directory. No sign-in needed.
Use it anywhere
MCP's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools MCP exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
get_design_guide — Datadef's standard for what makes a diagram readable, size, edge discipline, nested zones, annotations, and the tool order for building or e
canvas_describe_canvas — Get an overview of the current canvas: every node with its id, type, label and group, plus all connections and groups. Call this first, befo
canvas_inspect_nodes — Get full detail for specific nodes: all columns with types and keys, metadata, schedule, formula, owners. Use before modifying a node so you
canvas_measure_canvas — Get exact geometry: every node's position and size in canvas units, the overall canvas bounds, and any nodes that overlap each other. Call t
canvas_suggest_simplifications — Report where this canvas could be collapsed — groups of similar nodes that could become one summary node — without changing anything. Use it
canvas_search_icons — Search Datadef's icon library (2000+ cloud and data-tool logos) for a valid icon id. Use it when you want a specific vendor logo and are uns
canvas_add_nodes — Add one or more nodes to the canvas. Batch every node you want in a single call. Positions are assigned by canvas_layout_canvas afterwards —
canvas_add_standalone_node — Add a single data node at an exact position, without connecting it to anything. Use when the user wants something placed somewhere specific,
+ 28 more tools once connected
The MCP MCP server at a glance
https://datadef.io/mcpQuestions, answered
Is there an official MCP MCP server?
Yes — MCP operates its own remote MCP server at datadef.io. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect MCP to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick MCP in the directory. No account or sign-in is needed. From then on, MCP's tools are available in every client you've connected to gate.
Do I need to host anything?
No. MCP runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the MCP MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect MCP in minutes. No credit card required.
Connect more than just MCP
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up MCP in: Claude · Claude Code · ChatGPT · Cursor · VS Code