Website Carbon

API to estimate the carbon footprint of loading web pages

EnvironmentAuth: NoneHTTPS: YesCORS: unknownStatus: alive

Last verified: April 1, 2026

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Getting Started

This API requires no authentication — you can start making requests immediately with no sign-up or API key needed.

Find the endpoint — Check the API's documentation for available endpoints and what data they return.
Make a request — Use fetch() in JavaScript, curl in your terminal, or any HTTP client to call the API.
Use the data — The API will return data (usually JSON) that you can parse and use in your application.

No-auth APIs are the easiest to get started with — perfect for learning, prototyping, and building side projects.

CORS Support

CORS support for this API is unknown. If you get cross-origin errors in the browser, try calling the API from your server instead.

Quick Example

// Using cURL
curl https://api.websitecarbon.com/

// Using JavaScript fetch()
const response = await fetch(apiUrl);
const data = await response.json();

About Website Carbon

Website Carbon is a free, no-authentication API in the Environment category. You can start using it immediately without creating an account or obtaining an API key — just send an HTTP request and receive data back. This API supports HTTPS for secure connections and has unknown CORS support — test from your environment to confirm.

Frequently Asked Questions

What kind of data does Website Carbon return?

Website Carbon is an API in the Environment category. The specific data it returns depends on its endpoints — this could include structured records, search results, media files, or computed values. Visit the official documentation for a complete list of endpoints and response schemas.

What can I build with Website Carbon?

As a Environment API, Website Carbon can be integrated into web apps, mobile apps, browser extensions, chatbots, data dashboards, or backend services. Common use cases include displaying live data on a website, automating data collection, building comparison tools, or enriching your own database with external information.

Are there similar APIs to Website Carbon?

Yes — browse our Environment category to see all available APIs in the same space. Using multiple APIs can help with redundancy (if one goes down) and provide richer data by combining different sources.

Is Website Carbon free to use?

Yes, Website Carbon is listed as a free public API. It requires no sign-up or API key — you can start making requests immediately. Some APIs have rate limits on their free tier, so check the official documentation for current limits.

Is Website Carbon still working in 2026?

Yes! According to our most recent health check (Website Carbon's last ping: 2026-04-01 13:39:24), this API is responding normally. We periodically verify all listed APIs to ensure they are still online and functioning.