MCP server

Growo child growth

com.usegrowo/growo-growth

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Free child growth tools: percentiles, BMI, corrected age, target height, birth size. WHO and CDC.

Website

At a glance

Type

MCP server

Publisher

usegrowo.com (verified by the MCP Registry)

Status

Working at last check

Tools

16

Token cost

About 6,000 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http growo-growth https://mcp.usegrowo.com/

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.growo-growth]
url = "https://mcp.usegrowo.com/"

Gemini CLI

{"mcpServers":{"growo-growth":{"httpUrl":"https://mcp.usegrowo.com/"}}}

Cursor

{"mcpServers":{"growo-growth":{"url":"https://mcp.usegrowo.com/"}}}

VS Code

{"servers":{"growo-growth":{"type":"http","url":"https://mcp.usegrowo.com/"}}}

Antigravity

agy mcp add growo-growth https://mcp.usegrowo.com/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"growo-growth","server_url":"https://mcp.usegrowo.com/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"growo-growth","server_url":"https://mcp.usegrowo.com/"}

Tools

• birth_size_percentile ~490 tokens
  Where a birth measurement sits on the Olsen 2010 intrauterine curves, for the number of completed weeks of pregnancy. This answers a different question from the growth charts: not how a child grows over time, but how big they were on the day they were born given how long the pregnancy ran. A 2.2 kg
• bmi_percentile ~448 tokens
  Computes BMI from weight and height, then places it on the BMI-for-age chart for the child's sex and age: the WHO standards under 24 months, the CDC 2000 growth charts from 24 months to 240 months (20 years), the split the CDC advises. From 24 months the result also carries the CDC percentile range
• child_age ~299 tokens
  The exact calendar age from a birth date: whole years, months and leftover days, plus the total in months, weeks and days. Use it for 'how old is my baby in months', 'age in weeks' and for turning a birth date into an age in months. This is the age since birth, not the age corrected for prematurity.
• convert_measurement ~342 tokens
  Converts a weight (kg, g, lb, oz) or a length (cm, m, in, ft) to every common unit, so a measurement quoted in pounds and ounces or feet and inches can go into the growth tools, which take kg and cm. For '7 lb 4 oz' pass value 7, unit lb, extra 4; for '2 ft 3 in' pass value 2, unit ft, extra 3.
• corrected_age ~490 tokens
  The corrected age of a baby born before 37 weeks: the age since birth minus the weeks the baby was early. Use it for 'what is my preemie's corrected / adjusted age', for reading milestones, and for choosing the age at which to plot growth. Takes the birth date and the gestational age at birth and re
• development_milestones ~247 tokens
  WHO motor-development windows that are open, already closed or not yet due at a given age, plus the nearest CDC well-child checkpoint months. Windows are 1st–99th percentile ranges from the WHO Motor Development Study — a child inside a window is within the normal range.
• fetch ~116 tokens
  Retrieve the full text (Markdown) of a Growo article or calculator page by the id that search returned. The result includes the page url.
• growth_percentile ~454 tokens
  Where one measurement of a child sits on the WHO or CDC growth reference chart. Returns the percentile, the z-score and the 3rd/15th/50th/85th/97th percentile values at that age, using the same LMS tables as the calculator on usegrowo.com. Returns no interpretation.
• growth_reference_range ~366 tokens
  The 3rd/15th/50th/85th/97th percentile values for a given age and sex — the reference band itself, with no child's measurement involved. Use this to answer 'what is normal for this age'.
• growth_trend ~620 tokens
  What moved between two measurements of the same child: the percentile and z-score at each point, how far the position shifted, and how many of the drawn 3rd/15th/50th/85th/97th lines were crossed. Band crossings are the unit that matters — one is common while a child settles onto their own curve, tw
• growth_velocity ~395 tokens
  How fast a child grew between two measurements: the change, and the rate per day, per week and per 30 days. Use it for 'how many grams a day is my baby gaining' and 'how many cm did my child grow'. Weight in grams, length and head circumference in centimetres, dates as YYYY-MM-DD. It states the rate
• newborn_weight_change ~344 tokens
  How far a baby's weight is from the birth weight: the change in grams and in percent, and whether the baby is back at or above birth weight. Use it for 'how much weight has my newborn lost', 'newborn weight loss percentage' and 'has my baby regained birth weight'. It is arithmetic on two numbers and
• ponderal_index ~278 tokens
  The ponderal index (Rohrer's index) from weight and length: 100 x weight in grams / length in cm cubed, with the same quantity in kg per cubic metre. It is a newborn proportion measure; BMI-for-age is the usual measure for older children. It returns the number and does not place it against a range.
• search ~278 tokens
  Search Growo's physician-written articles and calculators on baby and child growth, percentiles, growth charts, premature babies (corrected age), head circumference, sleep, feeding and development. Returns a short list of results, each with an id, a title and the page URL. Each id can be read in ful
• target_height ~566 tokens
  The adult height a child is expected to reach, estimated from both parents' heights with Tanner's mid-parental method: (mother + father +13 cm for a boy, -13 cm for a girl) / 2, with a range of 8.5 cm either side. Use it for 'how tall will my child be', 'mid-parental height' and 'child height predic
• zscore_percentile ~267 tokens
  Converts a z-score (standard deviations from the median) to a percentile and a percentile to a z-score on the normal curve, the relationship growth charts use. Pass exactly one of zScore or percentile. It converts the number and does not say what it means for a child.

Browse

• Converting to Markdown
• Calendars
• Health and medicine

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