# Growo child growth (remote · mcp.usegrowo.com)

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

- Trust score: 85/100 (high trust)
- Change this week: +2
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `mcp.usegrowo.com`: 85/100 (this document), [markdown](https://verifymcp.io/servers/com-usegrowo-growo-growth/mcp.md), [page](https://verifymcp.io/servers/com-usegrowo-growo-growth/mcp)

## Channel facts

- Endpoint: `https://mcp.usegrowo.com/`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.5.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 77/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 78/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 3824 tokens (~239/item across 16 items; 16 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 99/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 97% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 16 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 17 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the Growo child growth MCP server?

Growo child growth is a hosted endpoint at https://mcp.usegrowo.com/, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

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

### Cursor

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

### VS Code

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

### Codex

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

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-usegrowo-growo-growth": {
      "type": "remote",
      "url": "https://mcp.usegrowo.com/",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-usegrowo-growo-growth --url 'https://mcp.usegrowo.com/' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-usegrowo-growo-growth:
    url: "https://mcp.usegrowo.com/"
```

### Netclaw

```json
{
  "McpServers": {
    "com-usegrowo-growo-growth": {
      "Transport": "http",
      "Url": "https://mcp.usegrowo.com/"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-usegrowo-growo-growth -t streamable-http -u 'https://mcp.usegrowo.com/'
```

### Other

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

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-03 (score 85, 0)

- [security] Stability: 0.97 → pass

### 2026-11-02 (score 85, +1)

No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 84, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-24 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-22 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-20 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (16)

### `growth_percentile` (~275 tokens)

Growth percentile

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.

Input parameters:

- `ageMonths` (number, required): Age in months. Use corrected age for a preterm infant.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `metric` (string, required): weight (kg), height/length (cm), head circumference (cm) or BMI (kg/m²).
- `sex` (string, required): Biological sex, as the growth charts are published separately for each.
- `standard` (string): Reference standard. WHO (0–5 years) describes how healthy breastfed children grow and is the international default; CDC (0–20 years) describes how US children grew in the 1970s–90s and is used in the…
- `value` (number, required): The measurement, in metric units: kg for weight, cm for height and head.

### `growth_reference_range` (~215 tokens)

Growth reference range

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'.

Input parameters:

- `ageMonths` (number, required): Age in months. Use corrected age for a preterm infant.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `metric` (string, required)
- `sex` (string, required): Biological sex, as the growth charts are published separately for each.
- `standard` (string): Reference standard. WHO (0–5 years) describes how healthy breastfed children grow and is the international default; CDC (0–20 years) describes how US children grew in the 1970s–90s and is used in the…

### `bmi_percentile` (~297 tokens)

BMI-for-age percentile

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 it falls in (below the 5th, 5th to below the 85th, 85th to below the 95th, 95th and above). BMI in childhood is read against age and sex, never against the adult 18.5–25 bands. Same functions and tables as the child BMI calculator on usegrowo.com. Returns no interpretation.

Input parameters:

- `ageMonths` (number, required): Age in months, 0 to 240 (20 years). Use age since birth; WHO is read below 24 months, CDC from 24.
- `heightCm` (number, required): Height or length in cm, 45 to 200.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `sex` (string, required): Biological sex, as the growth charts are published separately for each.
- `weightKg` (number, required): Weight in kg, 2 to 150.

### `growth_trend` (~291 tokens)

Change between two measurements

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, two downward is the pattern clinicians review. NOT a velocity percentile: WHO's separate Growth Velocity Standards are not implemented here, so this reports movement across the attained-growth chart and never claims a percentile for the rate of gain itself.

Input parameters:

- `from` (object, required): The earlier measurement.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `metric` (string, required)
- `sex` (string, required): Biological sex, as the growth charts are published separately for each.
- `standard` (string): Reference standard. WHO (0–5 years) describes how healthy breastfed children grow and is the international default; CDC (0–20 years) describes how US children grew in the 1970s–90s and is used in the…
- `to` (object, required): The later measurement. Its age must be greater than the first.

### `birth_size_percentile` (~298 tokens)

Size at birth for gestational age

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 baby at 34 weeks and a 2.2 kg baby at 40 weeks are not the same situation, and the WHO charts cannot tell them apart. Returns the percentile, the z-score and the SGA/AGA/LGA category, which is a statistical classification and not a diagnosis.

Input parameters:

- `gestationalWeeks` (integer, required): Completed weeks of pregnancy at delivery, 23-41. Use the obstetric gestational age, not corrected age.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `measure` (string, required): Birth weight, birth length, or head circumference at birth.
- `sex` (string, required): Biological sex, as the growth charts are published separately for each.
- `value` (number, required): The measurement. Birth weight in GRAMS (3400, not 3.4) as the published tables and delivery rooms both quote it; length and head circumference in centimetres.

### `corrected_age` (~310 tokens)

Corrected (adjusted) age for a premature baby

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 returns the corrected age, the age since birth, the original due date, and the date by which correction usually stops (about 24 months since birth). Before the due date there is no corrected age, and the result says how many days remain. A baby born at 37 weeks or later needs no correction. Dates are calendar dates (YYYY-MM-DD).

Input parameters:

- `asOf` (string): The date to calculate the age on, YYYY-MM-DD. Defaults to today in UTC; pass the user's own date to avoid being a day off near midnight.
- `birthDate` (string, required): Date of birth, YYYY-MM-DD.
- `gestationalDays` (integer): Extra days beyond the completed weeks. A baby born at 32 weeks and 3 days: 3.
- `gestationalWeeks` (integer, required): Completed weeks of pregnancy at birth. A baby born at 32 weeks and 3 days: 32.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…

### `target_height` (~366 tokens)

Mid-parental (target) height

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 predictor' questions. It is a statistical range, not a forecast for one child, and says nothing about the child's height today. Optionally, with the child's age (24-240 months) and current height, it adds a CDC projection: today's z-score on the CDC 2000 stature-for-age chart carried to age 20, with a range of one standard deviation either side; a height more than 5 SD from the CDC median for the age is refused as an entry error. Centimetres only: convert feet and inches first (5 ft 10 in = 177.8 cm).

Input parameters:

- `childAgeMonths` (number): Optional, with childHeightCm: the child's age in months (2 to 20 years), for the CDC projection.
- `childHeightCm` (number): Optional, with childAgeMonths: the child's current height in centimetres, measured standing.
- `fatherHeightCm` (number, required): Father's height in centimetres.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `motherHeightCm` (number, required): Mother's height in centimetres.
- `sex` (string, required): The child's sex: the formula adds or subtracts 13 cm accordingly.

### `newborn_weight_change` (~197 tokens)

Change from birth weight

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 does not say whether the change is expected. Grams only: 3400, not 3.4.

Input parameters:

- `ageDays` (integer): Optional: the baby's age in days at the later weight, echoed back.
- `birthWeightG` (number, required): Birth weight in grams.
- `currentWeightG` (number, required): The later weight in grams.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…

### `growth_velocity` (~215 tokens)

Growth velocity between two measurements

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 and does not compare it with a reference.

Input parameters:

- `firstDate` (string, required): Date of the earlier measurement, YYYY-MM-DD.
- `firstValue` (number, required): The earlier measurement.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `metric` (string, required): weight (grams), length (cm) or head circumference (cm).
- `secondDate` (string, required): Date of the later measurement, YYYY-MM-DD.
- `secondValue` (number, required): The later measurement.

### `ponderal_index` (~156 tokens)

Ponderal index

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.

Input parameters:

- `lengthCm` (number, required): Length (lying) or height in centimetres.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `weightKg` (number, required): Weight in kilograms.

### `child_age` (~186 tokens)

A child's exact age

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. Dates are YYYY-MM-DD.

Input parameters:

- `asOf` (string): Date to calculate on, YYYY-MM-DD. Defaults to today in UTC; pass the user's own date to avoid being a day off near midnight.
- `birthDate` (string, required): Date of birth, YYYY-MM-DD.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…

### `convert_measurement` (~227 tokens)

Convert a baby's weight or length between units

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.

Input parameters:

- `extra` (number): Ounces to add when unit is lb, or inches to add when unit is ft.
- `kind` (string, required): weight or length.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `unit` (string, required): kg, g, lb, oz for weight; cm, m, in, ft for length.
- `value` (number, required): The number in the given unit.

### `zscore_percentile` (~145 tokens)

Convert between a z-score and a percentile

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.

Input parameters:

- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…
- `percentile` (number): A percentile; returns the z-score.
- `zScore` (number): A z-score; returns the percentile.

### `development_milestones` (~136 tokens)

Motor milestones for an age

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.

Input parameters:

- `ageMonths` (number, required): Age in months. Use corrected age for a preterm infant.
- `locale` (string): Language for the disclaimer and any clinician note. Pass the language you will answer the user in: these are clinical safety texts written by a physician, and they should reach the reader as written…

### `search` (~144 tokens)

Search Growo's articles and calculators

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 full with fetch. The articles are educational and not medical advice.

Input parameters:

- `limit` (integer): Maximum number of results.
- `locale` (string): Language of the pages to search. Not every article exists in every language.
- `query` (string, required): What to look for, in plain words (e.g. 'baby dropped percentiles', 'corrected age premature').

### `fetch` (~68 tokens)

Read a Growo article or calculator page

Retrieve the full text (Markdown) of a Growo article or calculator page by the id that search returned. The result includes the page url.

Input parameters:

- `id` (string, required): An id from search, which is the page path (for example /insights/preterm-baby-growth-corrected-age).

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-usegrowo-growo-growth/mcp#diagnostics

## Score history

- 2026-11-05: 85
- 2026-11-04: 85
- 2026-11-03: 85
- 2026-11-02: 85
- 2026-11-01: 84
- 2026-10-31: 84
- 2026-10-30: 83
- 2026-10-29: 83
- 2026-10-28: 82
- 2026-10-27: 82
- 2026-10-26: 81
- 2026-10-25: 81
- 2026-10-24: 81
- 2026-10-23: 80
- 2026-10-22: 80
- 2026-10-21: 79
- 2026-10-20: 79
- 2026-10-19: 78
- 2026-10-18: 78
- 2026-10-17: 77
- 2026-10-16: 77
- 2026-10-15: 76
- 2026-10-14: 76
- 2026-10-13: 76
- 2026-10-12: 75
- 2026-10-10: 74
- 2026-10-09: 74
- 2026-10-06: 73
- 2026-10-05: 72
- 2026-10-04: 71

## Common questions

### What is the Growo child growth MCP server?

Growo child growth is an MCP server listed in the public MCP registry as com.usegrowo/growo-growth. Free child growth tools: percentiles, BMI, corrected age, target height, birth size. WHO and CDC. This page covers its hosted endpoint (https://mcp.usegrowo.com/).

### Is the Growo child growth MCP server safe to use?

Growo child growth scores 85 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Growo child growth MCP server expose?

Growo child growth exposes 16 tools: growth_percentile, growth_reference_range, bmi_percentile, growth_trend, birth_size_percentile, and 11 more. Their descriptions and schemas cost roughly 3,526 tokens of context every time the server is loaded.

### Does the Growo child growth MCP server require authentication?

No. We connected to Growo child growth without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Growo child growth MCP server still maintained?

Growo child growth is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://mcp.usegrowo.com/
- Website: https://usegrowo.com/mcp
- Changelog RSS feed: https://verifymcp.io/servers/com-usegrowo-growo-growth/mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-usegrowo-growo-growth/mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-usegrowo-growo-growth/mcp