Baby Age Calculator for AI
MCP serverDev toolsGive your AI the ability to work out a baby's exact age, zodiac sign, and milestone dates. The tool comes from Baby Age Calculator, is free to use, and needs no key, so it works as soon as it is added.
Use Baby Age Calculator for AI in Claude, ChatGPT or Ahel Desktop
Free. Sign in, add Baby Age Calculator for AI and connect your AI. About a minute.
Also: Claude Code · Cursor · Codex
Then ask your AI: use Baby Age Calculator for AI to get baby age
No key or account is asked for. Not verified by us yet: Ahel has not run a call through it.
Details
Available today. Use it from your connected AI after setup.
No key or account is asked for. Not verified by us yet: Ahel has not run a call through it.
No key is needed, so once it is added you can simply ask your AI for a baby's age, zodiac sign, or milestone dates.
What your AI can do with it
- Work out a baby's exact age from their birth date
- Look up a baby's zodiac sign
- Find the dates of a baby's milestones
- Get age, zodiac, and milestone details together in one answer
Install Baby Age Calculator for AI
The server’s own address, for the clients that take one directly. Or connect Ahel once and every client you use reads it from one address, with the account kept on Ahel rather than in each client’s config.
Claude Code
claude mcp add --transport http --scope user baby-age-calculator-for-ai 'https://babyagecalculator.com/api/mcp/'Run it once in your project, then open /mcp to approve any sign-in the server asks for.
Claude Desktop
https://babyagecalculator.com/api/mcp/Add a custom connector in Settings, paste this address, and approve the sign-in.
Cursor
cursor://anysphere.cursor-deeplink/mcp/install?name=baby-age-calculator-for-ai&config=eyJ1cmwiOiJodHRwczovL2JhYnlhZ2VjYWxjdWxhdG9yLmNvbS9hcGkvbWNwLyJ9Open the link and Cursor adds the server at that address.
ChatGPT
https://babyagecalculator.com/api/mcp/In Settings, enable Developer mode, create an MCP app, and paste this address. Your plan and workspace must allow custom apps.
Codex
codex mcp add baby-age-calculator-for-ai --url 'https://babyagecalculator.com/api/mcp/'Run it once, then sign in with codex mcp login baby-age-calculator-for-ai if the server asks for an account.
From the project's README
As published by babyagecalculator/ai in README.md.
Exact baby ages, zodiac signs, and milestone dates for your AI — no hand-computed date math.
⚡ Fastest way — paste this to your AI
Use https://babyagecalculator.com/llms.txt for anything about a baby's age,
zodiac sign, or milestone dates. Do the date math with this tool, not by hand.
Works in any assistant, zero setup, no key. Agentic tools like Claude Code will even install the MCP server from it.
Why: language models are unreliable at date math (leap years, month lengths, milestone dates). Let this tool do it, then orchestrate the rest yourself.
Want it installed for good?
| Best for | Setup | |
|---|---|---|
| 🔌 MCP server | Claude Code, Claude Desktop, Cursor | one line / one config block |
| 📄 AI Skill | any assistant, no MCP | drop in one file |
| 🧩 JSON API | your own app or agent | GET a URL |
🔌 MCP server
Hosted endpoint (nothing to deploy):
https://babyagecalculator.com/api/mcp/
Claude Code
claude mcp add --transport http baby-age https://babyagecalculator.com/api/mcp/
Claude Desktop / Cursor — add to your mcpServers config:
{
"mcpServers": {
"baby-age-calculator": {
"type": "http",
"url": "https://babyagecalculator.com/api/mcp/"
}
}
}
Tools
| Tool | Returns |
|---|---|
get_baby_age(birthday) | exact age, zodiac, current/next milestone, special days |
get_milestone_dates(birthday) | all 25 milestones as calendar dates |
list_milestones() | the 25 milestone types |
get_zodiac_sign(birthday) | the zodiac sign |
Full guide → https://babyagecalculator.com/mcp/
📄 AI Skill
SKILL.md is a one-file skill. Your AI reads it and uses the public
API — no MCP, no key.
Full guide → https://babyagecalculator.com/skill/
🧩 Free JSON API
curl "https://babyagecalculator.com/api/age/?birthday=2024-12-15"
- No key, CORS-open.
- Every response has the shape
{ code, data, error, meta }; the payload is indata. - A bad date returns HTTP 400 with a message in
error.message.
Endpoints
| Endpoint | Returns |
|---|---|
GET /api/age/?birthday=YYYY-MM-DD | age, zodiac, milestones, special days |
GET /api/milestones/ | all 25 milestone types |
GET /api/zodiac/ | all 12 zodiac signs |
Docs → https://babyagecalculator.com/docs/
Machine-readable → https://babyagecalculator.com/llms.txt
License
MIT © BabyAgeCalculator
Tools it offers (4)
What this server listed when Ahel dialed its public endpoint in Oct 2026, with no key and no account of yours. The names are the server’s own.
get_baby_ageget_milestone_dateslist_milestonesget_zodiac_sign
Signals
- Last commit
- Jul 2026
Advanced
- Delivery
- baby-age MCP server → your Ahel connector (mcp.ahel.ai) → your AI.
- Item type
- mcp-server
- Key
com-babyagecalculator-baby-age- Source
- github.com/babyagecalculator/ai
- Hosted endpoint
https://babyagecalculator.com/api/mcp/
github.com/babyagecalculator/ai