On the Register

Working Security A

uk.co.ontheregister/on-the-registerv0.1.0 Domain verified

Checks weight loss clinics and online pharmacies against the UK regulator registers (CQC, GPhC).

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Registry entry

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{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-07T09:56:41.376781Z",
      "publishedAt": "2026-11-07T09:56:41.376781Z",
      "statusChangedAt": "2026-11-07T09:56:41.376781Z"
    }
  },
  "server": {
    "name": "uk.co.ontheregister/on-the-register",
    "icons": [
      {
        "src": "https://ontheregister.co.uk/brand/icon-512.png",
        "sizes": [
          "512x512"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "On the Register",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://ontheregister.co.uk/api/mcp",
        "type": "streamable-http"
      }
    ],
    "version": "0.1.0",
    "websiteUrl": "https://ontheregister.co.uk",
    "description": "Checks weight loss clinics and online pharmacies against the UK regulator registers (CQC, GPhC)."
  }
}

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Call this server's tools from your browser. Nothing to install.

https://ontheregister.co.uk/api/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

bmi_check

Body mass index from weight and height, with the NHS adult category and the healthy-weight range for that height. UK thresholds; note the NHS lowers them for some ethnic backgrounds. General information, not a diagnosis.

height_cmnumber, required

Height in cm (120-230)

weight_kgnumber, required

Body weight in kg (30-350)

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

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Argument	Type	Description
dose	any	Required when direction is dose_to_units
units	any	Required when direction is units_to_dose
syringe	string
vial_mg	any
water_ml	any
direction	string
dose_unit	string
conc_mg_ml	number	Known strength; or give vial_mg + water_ml instead

Argument	Type	Description
dose*	number	The prescribed dose, in the unit given by dose_unit
syringe	string
vial_mg*	number	Powder in the vial, in mg
water_ml*	number	Bacteriostatic water added, in mL
dose_unit	string

Argument	Type	Description
a*	string
b*	string

Argument	Type	Description
status	string
category	string	Category code, e.g. WL, Longevity, Repair

Argument	Type	Description
age*	integer	Age in years (18-100)
sex*	string	Biological sex, for the metabolic equation
activity	string
height_cm*	number	Height in cm (120-230)
weight_kg*	number	Body weight in kg (30-350)

On the Register

Registry entry

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bmi_check

On the Register

Registry entry

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bmi_check

Install

Tools (23)

Security checkA100/100

Argument	Type	Description
drug*	string
last_dose*	string	Date of the last dose, YYYY-MM-DD

Argument	Type	Description
weeks	integer	How many weeks to lay out, default 8
product*	string
start_date*	string	The day the first patch goes on, YYYY-MM-DD

Argument	Type	Description
activity	string
height_cm	number	Height in cm (120-230); sharpens the target
weight_kg*	number	Body weight in kg (30-350)

Argument	Type	Description
q	string	Text to match in the provider name
kind	string
near	string	A UK postcode or outcode to search near; returns nearest first
sort	string	Order: distance (needs `near`), cqc_rating, google_rating, or reviews (Google count). Default: distance with `near`, else cqc_rating.
limit	integer
nation	string
radius_km	number	Search radius for `near`, in km
town_slug	string
treatment*	string

Argument	Type	Description
product*	string
hours_out	number	Hours out of the fridge, for 'left-out'
situation*	string
temp_band	string	How warm it got, for 'left-out'

Argument	Type	Description
per_day*	number	Pumps, sprays or sachets used per day (the user's prescription)
product*	string
lead_days	integer	Reorder lead time in days, default 7
opened_on	string	Date the pack was first opened, YYYY-MM-DD; default today
containers	integer	Units in the pack (canisters, or sachets); default the product's pack size

Argument	Type	Description
waist_cm*	number	Waist measurement in cm (40-200), at the belly button
height_cm*	number	Height in cm (120-230)