The protein layer for your website 🏹

Name: Protein Hunter food protein dataset
Creator: Protein Hunter
License: https://proteinhunter.app/terms

Protein Hunter's food data is free for other websites to use. Add a protein calculator to your recipe blog, pull protein values into your fitness app, or compare foods on your coaching site — no account, no API key, no cost. 232 curated foods with protein and calories per 100 g, the same numbers the Protein Hunter app itself uses.

1. Add a widget (no code)

Pick a widget, copy the snippet, paste it into your page. It works in WordPress, Squarespace, Webflow, Shopify, Ghost, Notion embeds and plain HTML.

Visitors pick a food and a portion, and get protein + calories instantly.

Default food (optional)

Your creator handle (optional)

Theme

A handle credits every view, interaction and signup back to you — no personal data is collected from your visitors.

Embed method

Copy this into your website

<div data-protein-hunter="calculator"></div>
<script src="https://proteinhunter.app/embed.js" async></script>

Where are you pasting it?

1.Open the page or post where you want the tool.
2.Click the "+" button and add a "Custom HTML" block.
3.Paste the code into the block.
4.Click Update or Publish — the tool appears straight away.

Using the Classic editor? Switch to the Text tab before pasting.

Live preview

Share this tool

Know another creator, coach or site owner who could use it? Send it over.

WhatsApp Facebook X LinkedIn Telegram

Sharing the calculator tool.

2. Use the API

Plain JSON over HTTPS. CORS is open, so you can call it straight from the browser. Responses are cacheable and every response carries its attribution block.

GET/api/public/v1/foods

Every food in the catalog. Filter with ?category=, page with ?limit= & ?offset=.

Try it: /api/public/v1/foods?category=Legumes&limit=5

GET/api/public/v1/foods/{id}

One food plus five nutritionally similar foods. Accepts an id or a name.

Try it: /api/public/v1/foods/chicken-breast

GET/api/public/v1/search

Search the catalog by name or category.

Try it: /api/public/v1/search?q=tofu&limit=5

GET/api/public/v1/compare

Compare two foods and get the protein difference in plain language.

Try it: /api/public/v1/compare?a=chicken-breast&b=tofu-firm

GET / POST/api/public/v1/calculate

Protein and calories for a portion. POST { items: [{ food, grams }] } for a whole meal.

Try it: /api/public/v1/calculate?food=salmon&grams=180

fetch("https://proteinhunter.app/api/public/v1/calculate?food=chicken-breast&grams=150")
  .then((r) => r.json())
  .then((d) => console.log(d.total_protein_g)); // 46.5

3. Badges

Show your readers where the numbers come from. Each badge links back to Protein Hunter.

<a href="https://proteinhunter.app"><img src="https://proteinhunter.app/badge/powered.svg" alt="Powered by Protein Hunter" height="32"></a>

Limits & fair use

Free and anonymous: 60 requests per minute and 10,000 per day, no key required.
A free API key raises that to 300 per minute and 100,000 per day, and shows your usage.
Every response returns X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset. Over the limit you get a 429 with Retry-After.
Need more volume or a commercial integration? Email us — higher tiers are coming.
Attribution is required: keep the "Powered by Protein Hunter" link in the widget, or link to proteinhunter.app where you display the data.
Do not present the data as medical advice or claim it as your own dataset.

Accuracy

Values are grams of protein and kilocalories per 100 g of the food as described (cooked where stated, dry where stated), curated and reviewed by hand. Carbohydrate and fat values are deliberately not published yet — we would rather ship nothing than ship numbers we have not verified. See our data methodology.

Support

Questions, higher limits, partnership or a widget you wish existed — get in touch. We read everything.