ForHosting KIT · Developer Utilities

Daily protein intake calculator

Daily protein intake calculator: enter your values and see a clear result on this page. Free for individual checks; API from $0.002.

● BetaFree · in your browser

Run — free How it works & API

Use it from WebAPIEmailTelegramApp soon

How to use it

Enter your values in the form above. The tool checks them before calculating and shows the result on the same page.

Check your inputs

Use the labels and units shown next to each field. If something is missing or outside the allowed range, the page points to the field to fix.

Use it again or automate it

Use the browser tool for individual checks and the API when you need the same capability in an automated workflow.

What you can do with it

Get an answer now

Enter one set of values and see the result without building a spreadsheet or script.

Compare scenarios

Change one value at a time and rerun the calculation to understand what affects the result.

Automate repeated work

Use the API when the same calculation needs to run inside your product or workflow.

FAQ

How is daily protein intake calculated?

Using daily_protein_g = weight_kg × grams_per_kg. You supply body weight in kilograms and the activity-based grams of protein per kilogram per day; the product is the daily goal in grams.

What grams-per-kilogram target should I use?

That depends on goals, training, and professional guidance. Educational ranges often cite about 0.8 g/kg for sedentary adults, about 1.2–1.6 for recreational activity, and about 1.6–2.2 for many athletes—these are examples only, not medical advice. This tool multiplies whatever positive target you send.

What happens if weight is zero or negative?

The request fails with invalid_input. Non-positive weight is rejected rather than inventing absolute values or a silent zero goal. Non-positive grams_per_kg is also rejected.

What units should I use?

Weight in kilograms and the protein target in grams per kilogram of body weight per day. The response reports daily_protein_g (and protein_g) with unit g.

What does it cost?

The browser tool is free and runs locally. API requests use prepaid KIT balance at $0.002 per successful item; invalid input is not charged.

For developers — API access

Everything on this page is available programmatically. This section is for teams who want to wire it into their own systems; everyone else can just use the tool above.

API endpoint

POSThttps://api.kit.forhosting.com/health/protein-intake

Prefer to automate it? One authenticated POST creates the task; the result comes back by webhook or a signed link. The same capability also runs here on the web, by email and from Telegram — and soon from our app too.

Call it from your stack

curl -X POST https://api.kit.forhosting.com/health/protein-intake \
  -H "Authorization: Bearer $KIT_KEY" \
  -H "Content-Type: application/json" \
  -d '{"weight":70,"grams_per_kg":1.6}'

const res = await fetch("https://api.kit.forhosting.com/health/protein-intake", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.KIT_KEY}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "weight": 70,
    "grams_per_kg": 1.6
  })
});
const { task_id } = await res.json();

import os, requests

res = requests.post(
    "https://api.kit.forhosting.com/health/protein-intake",
    headers={"Authorization": f"Bearer {os.environ['KIT_KEY']}"},
    json={
    "weight": 70,
    "grams_per_kg": 1.6
},
)
task_id = res.json()["task_id"]

<?php
$res = file_get_contents("https://api.kit.forhosting.com/health/protein-intake", false, stream_context_create([
  "http" => [
    "method"  => "POST",
    "header"  => "Authorization: Bearer " . getenv("KIT_KEY") . "\r\nContent-Type: application/json",
    "content" => '{"weight":70,"grams_per_kg":1.6}',
  ],
]));
$task = json_decode($res, true);

body := bytes.NewBufferString(`{"weight":70,"grams_per_kg":1.6}`)
req, _ := http.NewRequest("POST", "https://api.kit.forhosting.com/health/protein-intake", body)
req.Header.Set("Authorization", "Bearer "+os.Getenv("KIT_KEY"))
req.Header.Set("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)

Example request

{
  "weight": 70,
  "grams_per_kg": 1.6
}

Example response

{
  "task_id": "tsk_a1b2c3d4e5f6a1b2c3d4e5f6",
  "type": "health.protein_intake",
  "status": "queued",
  "_links": {
    "result": "/tasks/tsk_…/result"
  }
}

The API is asynchronous: the call returns a task_id immediately and the result arrives by webhook. Polling is capped at 1 req/s per task.

Pricing

Per request$0.002

Published price — no tokens, no invented credits. A failed task is never charged.

Errors

HTTP	Code	Meaning
`401`	`unauthorized`	Missing or invalid API key.
`402`	`insufficient_balance`	Your balance doesn't cover the task price.
`404`	`unknown_type`	That task type doesn't exist.
`429`	`rate_limited`	Too many requests. Use the webhook instead of polling.

Read the full KIT documentation →

Run — free