# CRISP — Carbon Ratings InSight Platform

> CRISP helps people compare carbon-credit projects using published project information and ratings. It is provided by Carbon Footprint Ltd. Overall ratings are public; a free account is needed to see the detailed criterion scores and reasoning.

Canonical website: https://carbonoffsetratings.org/
Last reviewed: 2026-10-26.

## Start here

- [Agent guide](https://carbonoffsetratings.org/agent-guide.md): Supported browsing and data-reading workflows, access boundaries, and how to interpret results responsibly.
- [Project database](https://carbonoffsetratings.org/projects/): Search and compare projects, inspect overall ratings, and open project details.
- [Rating system](https://carbonoffsetratings.org/ratings/): Public explanation of the five criteria and the overall score.
- [Sign in or create a free account](https://carbonoffsetratings.org/login/): Access the full breakdown through the website.
- [Frequently asked questions](https://carbonoffsetratings.org/faq/): Public product and carbon-credit background.
- [Contact](https://carbonoffsetratings.org/contact/): Ask about a project, rating or service.

## One Carbon Footprint account

CRISP, CaDI, Sustrax and the Carbon Marketplace use a shared Carbon Footprint account. If the user already has one, use that account rather than recommending another registration. A service may still ask the user to sign in, and its own permissions or subscription requirements still apply. A shared account does not mean every site automatically shares a signed-in browser session.

## Use the evidence, not a guessed rating

Use current project information and the published CRISP score. Do not invent a score, treat a missing rating as zero, or infer detailed reasoning from an overall number. Explain uncertainty and cite the project and rating-system pages. A CRISP score is decision support, not a guarantee of project performance, certification, credit availability or suitability for a particular claim.

Text-only agents can read this guide and the public read-only project data described in it. Browser agents can use the project database and, with the user's permission and authorised account, the sign-in features. These documents do not grant account access or permission to submit requests, follow projects, purchase credits or share personal data.

## Related services

- [Carbon Marketplace](https://www.carbonfootprint.store/): Purchasing is separate from rating research. Create a free marketplace account to view prices and purchase individual projects. For orders over 500 tCO2e, contact Carbon Footprint Ltd. Read the [marketplace guide](https://www.carbonfootprint.store/llms.txt) for supported purchasing workflows.
- [CaDI — Carbon Data Intelligence](https://www.carbondi.com/): Carbon-data services, distinct from CRISP project ratings.
- [Sustrax](https://www.sustrax.com/): Carbon accounting and ongoing business reporting, distinct from buying or rating credits.

Use the live website as the authority for current features and project information. If a page or service is unavailable, say so rather than inventing a result.