The Due Date MCP server,
connected in one click.
Estimate a due date from LMP, conception, or ultrasound, with ACOG redating rules. Connect the official Due Date 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
Add Due Date to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http due-date https://due-date.gumballtools.com/api/mcpRun in your terminal, then restart Claude Code.
Due Date · https://due-date.gumballtools.com/api/mcp
What your AI can do with Due Date
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “due_date”: Estimate a due date and gestational age from a last menstrual period, a known conception date, an IVF transfer date, or an ultrasound measur.”
How secure is the Due Date MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Due Date holds up.
Official endpoint
Operated by Due Date (gumballtools.com) 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 Due Date 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 Due Date
Choose Due Date in the gate directory. No sign-in needed.
Use it anywhere
Due Date'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 Due Date exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
due_date — Estimate a due date and gestational age from a last menstrual period, a known conception date, an IVF transfer date, or an ultrasound measur
Who runs the Due Date MCP server?
The Due Date MCP server at a glance
https://due-date.gumballtools.com/api/mcpQuestions, answered
Is there an official Due Date MCP server?
Yes — Due Date operates its own remote MCP server at due-date.gumballtools.com. 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 Due Date to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Due Date in the directory. No account or sign-in is needed. From then on, Due Date's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Due Date runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Due Date 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 Due Date in minutes. No credit card required.
Connect more than just Due Date
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Due Date in: Claude · Claude Code · ChatGPT · Cursor · VS Code