com.usegrowo/growo-growth

What it mainly works on, as our AI model read its tool descriptions: nothing outside itself: it only answers questions.

None of its 16 tools are described as changing anything.

• growth_percentilereads or searches

  “Where one measurement of a child sits on the WHO or CDC growth reference chart.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  6 inputs, 4 required

  • metricstringrequired“weight (kg), height/length (cm), head circumference (cm) or BMI (kg/m²).”
  • sexstringrequired“Biological sex, as the growth charts are published separately for each.”
  • ageMonthsnumberrequired“Age in months.”
  • valuenumberrequired“The measurement, in metric units: kg for weight, cm for height and head.”
  • standardstring“Reference standard.”
  • localestring“Language for the disclaimer and any clinician note.”
• growth_reference_rangereads or searches

  “The 3rd/15th/50th/85th/97th percentile values for a given age and sex — the reference band itself, with no child's measurement involved.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  5 inputs, 3 required

  • metricstringrequired
  • sexstringrequired“Biological sex, as the growth charts are published separately for each.”
  • ageMonthsnumberrequired“Age in months.”
  • standardstring“Reference standard.”
  • localestring“Language for the disclaimer and any clinician note.”
• bmi_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 (2…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  5 inputs, 4 required

  • sexstringrequired“Biological sex, as the growth charts are published separately for each.”
  • ageMonthsnumberrequired“Age in months, 0 to 240 (20 years).”
  • weightKgnumberrequired“Weight in kg, 2 to 150.”
  • heightCmnumberrequired“Height or length in cm, 45 to 200.”
  • localestring“Language for the disclaimer and any clinician note.”
• growth_trend

  “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.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  6 inputs, 4 required

  • metricstringrequired
  • sexstringrequired“Biological sex, as the growth charts are published separately for each.”
  • standardstring“Reference standard.”
  • fromobjectrequired“The earlier measurement.”
  • toobjectrequired“The later measurement.”
  • localestring“Language for the disclaimer and any clinician note.”
• birth_size_percentile

  “Where a birth measurement sits on the Olsen 2010 intrauterine curves, for the number of completed weeks of pregnancy.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  5 inputs, 4 required

  • measurestringrequired“Birth weight, birth length, or head circumference at birth.”
  • sexstringrequired“Biological sex, as the growth charts are published separately for each.”
  • gestationalWeeksintegerrequired“Completed weeks of pregnancy at delivery, 23-41.”
  • valuenumberrequired“The measurement.”
  • localestring“Language for the disclaimer and any clinician note.”
• corrected_agecalculates or converts

  “The corrected age of a baby born before 37 weeks: the age since birth minus the weeks the baby was early.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  5 inputs, 2 required

  • birthDatestringrequired“Date of birth, YYYY-MM-DD.”
  • gestationalWeeksintegerrequired“Completed weeks of pregnancy at birth.”
  • gestationalDaysinteger“Extra days beyond the completed weeks.”
  • asOfstring“The date to calculate the age on, YYYY-MM-DD.”
  • localestring“Language for the disclaimer and any clinician note.”
• target_heightcalculates or converts

  “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 c…”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  6 inputs, 3 required

  • sexstringrequired“The child's sex: the formula adds or subtracts 13 cm accordingly.”
  • motherHeightCmnumberrequired“Mother's height in centimetres.”
  • fatherHeightCmnumberrequired“Father's height in centimetres.”
  • childAgeMonthsnumber“Optional, with childHeightCm: the child's age in months (2 to 20 years), for the CDC projection.”
  • childHeightCmnumber“Optional, with childAgeMonths: the child's current height in centimetres, measured standing.”
  • localestring“Language for the disclaimer and any clinician note.”
• newborn_weight_changecalculates or converts

  “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.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  4 inputs, 2 required

  • birthWeightGnumberrequired“Birth weight in grams.”
  • currentWeightGnumberrequired“The later weight in grams.”
  • ageDaysinteger“Optional: the baby's age in days at the later weight, echoed back.”
  • localestring“Language for the disclaimer and any clinician note.”
• growth_velocitycalculates or converts

  “How fast a child grew between two measurements: the change, and the rate per day, per week and per 30 days.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  6 inputs, 5 required

  • metricstringrequired“weight (grams), length (cm) or head circumference (cm).”
  • firstValuenumberrequired“The earlier measurement.”
  • firstDatestringrequired“Date of the earlier measurement, YYYY-MM-DD.”
  • secondValuenumberrequired“The later measurement.”
  • secondDatestringrequired“Date of the later measurement, YYYY-MM-DD.”
  • localestring“Language for the disclaimer and any clinician note.”
• ponderal_indexcalculates or converts

  “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.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  3 inputs, 2 required

  • weightKgnumberrequired“Weight in kilograms.”
  • lengthCmnumberrequired“Length (lying) or height in centimetres.”
  • localestring“Language for the disclaimer and any clinician note.”
• child_agecalculates or converts

  “The exact calendar age from a birth date: whole years, months and leftover days, plus the total in months, weeks and days.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  3 inputs, 1 required

  • birthDatestringrequired“Date of birth, YYYY-MM-DD.”
  • asOfstring“Date to calculate on, YYYY-MM-DD.”
  • localestring“Language for the disclaimer and any clinician note.”
• convert_measurementcalculates or converts

  “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.”

  Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

  5 inputs, 3 required

  • kindstringrequired“weight or length.”
  • valuenumberrequired“The number in the given unit.”
  • unitstringrequired“kg, g, lb, oz for weight; cm, m, in, ft for length.”
  • extranumber“Ounces to add when unit is lb, or inches to add when unit is ft.”
  • localestring“Language for the disclaimer and any clinician note.”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-23.

The registry verifies a package once, when it is published, and does not re-check it. A difference below is about the listing, not a judgement of the publisher.