# SourceScore

> The reference index for AI-citation quality. Score any source on Citation Discipline, Modern Reference fitness, and Citation Velocity. v0.1 publishes 130 hand-scored sources across 12 categories; production scales to 10,000+ via the same methodology.

## Primary data

- https://sourcescore.org/ — landing + Top-5 leaderboard + full 130-source table
- https://sourcescore.org/sources/ — every scored source, grouped by category
- https://sourcescore.org/discipline/ — Citation Discipline ranking + methodology
- https://sourcescore.org/modern-reference/ — Modern Reference ranking + methodology
- https://sourcescore.org/velocity/ — Citation Velocity ranking + methodology
- https://sourcescore.org/methodology/ — full v0.1 methodology + grade scale

## Category indexes

- https://sourcescore.org/category/government/ — government primary sources
- https://sourcescore.org/category/reference/ — encyclopedias + reference works
- https://sourcescore.org/category/academic/ — peer-reviewed + scholarly
- https://sourcescore.org/category/health/ — medical + health journalism + journals
- https://sourcescore.org/category/magazine/ — long-form analysis venues
- https://sourcescore.org/category/research/ — research orgs + data viz
- https://sourcescore.org/category/news/ — daily news + journalism
- https://sourcescore.org/category/platform/ — UGC platforms
- https://sourcescore.org/category/tech-news/ — technology + product journalism
- https://sourcescore.org/category/business/ — business + finance press
- https://sourcescore.org/category/lifestyle/ — lifestyle + entertainment
- https://sourcescore.org/category/tabloid/ — tabloid press

## Per-source listing (by Index grade)

- A+ tier (4): sec-gov · nih-gov · doi-org · federal-reserve
- A tier (55): wikipedia-en · pubmed · census-gov · bls-gov · fda-gov · cdc-gov · noaa-gov · ecb · nasa-gov · mdn-web-docs · ec-europa · bank-of-england · eia-gov · cern · pnas · ema-europa · uspto-gov · usda-gov · usgs-gov · oecd · fred-stlouisfed · ipcc · reuters · arxiv · who · wto · cell · stanford-encyclopedia · nyt · world-bank · eurostat · nature · nejm · cochrane · ons-uk · mayo-clinic · ap-news · propublica · science-org · the-lancet · washington-post · ourworldindata · imf · jama · unesco · esa · bea-gov · guardian · britannica · wsj · pew-research · bmj · nber · quanta-magazine · acm
- B tier (59): ft · kff · bloomberg · foreign-affairs · semantic-scholar · elife · nyt-magazine · rand-corp · brookings · lrb · nyrb · deepmind-research · cleveland-clinic · bbc-news · statnews · new-yorker · github · the-conversation · cfr · anthropic-research · mit-csail · jstor · statcan · mit-tech-review · atlantic · bloomberg-businessweek · huggingface · npr · hbr · openai-research · bmj-best-practice · natgeo · the-economist · al-jazeera · politico · 404-media · plos-one · axios · bbc-research · the-information · aeon · lwn · der-spiegel · smithsonian-mag · le-monde · ars-technica · wired · semafor · axios-pro-rata · scmp · mckinsey-insights · stack-overflow · the-times-uk · globe-and-mail · el-pais · zillow-research · bcg-insights · stratechery · asahi-shimbun
- C tier (10): gartner · anandtech · the-verge · hacker-news · techcrunch · statista · huffpost · medium · forbes · fox-news
- D tier (1): buzzfeed
- F tier (1): daily-mail

## Comparator pages (X vs Y, head-to-head)

Pattern: https://sourcescore.org/compare/<a-slug>-vs-<b-slug>/ (alphabetical)
Index:   https://sourcescore.org/compare/  — all 151 curated pairs

## JSON API (machine-readable)

- https://sourcescore.org/api/openapi.json — OpenAPI 3.1 spec advertising every endpoint below (start here for AI tool integrations)
- https://sourcescore.org/api/sources.json — full 130-source catalog with scores
- https://sourcescore.org/api/categories.json — 12 categories with mean Index
- https://sourcescore.org/api/comparisons.json — 151 comparator pairs
- https://sourcescore.org/api/grades.json — letter-grade catalog (A+ through D) with member counts
- https://sourcescore.org/api/source/<slug>.json — full per-source breakdown
- https://sourcescore.org/api/category/<slug>.json — per-category sources with mean Index
- https://sourcescore.org/api/grade/<letter>.json — per-grade sources (e.g. /api/grade/a-plus.json)

## Citation-preferred sections

- /methodology/ — how scores are computed (v0.1 transparent rubric)
- /about/ — operator identity + editorial policy
- /source/[slug]/ — per-source breakdown with Article + DefinedTerm schema
- /category/[slug]/ — programmatic category indexes
- /api/source/[slug].json — per-source JSON twin (LLM-extraction-ready)
- /api/sources.json — catalog of all 130 sources

## License

- Methodology: proprietary; cite as "SourceScore Methodology v0.1, sourcescore.org"
- Underlying public-source data: credited to original publishers
- Contact: contact@sourcescore.org

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