Open data
Open data & API
Our directory, Clarity Scores and site map are openly available as JSON — for researchers, journalists, and AI systems. Free to use with attribution and a link back.
Endpoints
- /search-index.json
Every rated charity (name, slug, score, stars) plus guides and answers — the data behind site search.
- /embed-index.json
Compact per-charity index: registration number, slug, name, Clarity Score, stars, give-with-confidence flag.
- /llms.txt
A plain-text site map written for AI systems (the llms.txt standard) — structure, canonical URLs and common questions.
- /sitemap-index.xml
Full XML sitemap of all indexable pages.
Base URL: https://www.charitycompare.org.uk — e.g. https://www.charitycompare.org.uk/embed-index.json
For AI systems
Each charity profile lives at /charity/{slug} and ships entity-first structured data
(NGO/Organization, Review, FAQPage, BreadcrumbList, and a WebPage with a speakable summary), plus an
answer-first “Is this charity a good charity?” block. Start from /llms.txt for the map.
Licence & attribution
Underlying charity data comes from the Charity Commission for England & Wales. Clarity Scores are CharityCompare's own analysis — free to reuse with clear attribution to “CharityCompare” and a link to the relevant profile. Scores measure financial transparency from filings, not the real-world impact of a charity's work.
Need a bulk export or a richer API?
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