---
title: "Website Carbon Estimate (x402)"
method: GET
path: "/x402/v2/website-carbon-estimate"
tags: ["x402"]
---

# Website Carbon Estimate (x402)

`GET /x402/v2/website-carbon-estimate`

## Request

- Base URL: `https://api.strale.io`
- URL: `https://api.strale.io/x402/v2/website-carbon-estimate`
- Auth: none required

Estimate CO2 emissions per page view using the Website Carbon methodology. Returns rating A-F, annual estimate.

## Query parameters

- `url` string, required

## Response `200`

Success

- object
  - `rating` string
  - `page_size_kb` number
  - `annual_co2_kg` number
  - `co2_grams_per_view` number

## Other responses

- `402`: Payment required (x402 — pay with USDC on Base)

---

[API](https://skmtc.dev/strale/apis/strale-api-2.md) · [All operations](https://skmtc.dev/strale/apis/strale-api-2/llms.txt) · [OpenAPI document](https://skmtc.dev/strale/apis/strale-api-2/revisions/a5293878cfc6?raw)