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Sugra API
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sugra
Sugra API
get
Works citing a given DOI (best-effort)
OpenAPI 3.1.0
Proprietary
2026-08-20
1,556
3,207
6.4 MB
652554d2aae1
Air Quality
1
Catalog
6
Central Banks & Monetary
268
Commodities
20
Corporate Registry
14
Crypto
21
Digital Economy and Infrastructure
56
Disasters & Hazards
8
Earnings
1
Economics
46
Energy
12
Entertainment
15
Environment
142
Equities Indices
13
Finance
125
Fixed Income
19
Forex
6
Fundamentals
34
Funds & ETFs
12
Geocoding
6
Global Economy & Trade
87
Global News and Media
25
Health
10
Hedge Fund Intelligence
67
Insiders
2
Options
10
Predictions
35
Public Finance & Government
66
Real Estate
9
Research
34
get
Catalog of countries, year range, and variable dictionary
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Full Penn World Table time series for one country
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Single-variable Penn World Table time series for one country
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Top-N countries ranked by a Penn World Table variable
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Variable dictionary and methodology notes
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World aggregate time series (sum or mean across countries)
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Side-by-side comparison of countries for one variable-year
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TFP panel - Penn World Table productivity series
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US recession dates (NBER Business Cycle Dating Committee)
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Latest NBER working papers (RSS feed)
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Generic fielded search across arXiv preprints
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Fetch a single arXiv paper by identifier
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Papers in an arXiv subject category
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Static catalog of arXiv subject categories
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Papers by author name
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Recent papers in a category, date-windowed
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Related papers derived from category + co-author heuristic
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Full metadata for a DOI
get
Search Crossref works by query, author, title, type, or date range
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Journal profile by ISSN
get
Works published in a journal
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Works funded by a given funder
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Publisher (member) profile by numeric ID
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Publication-type catalog (30 stable entries)
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License URL catalog (26,945 entries)
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References cited by a DOI
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Works citing a given DOI (best-effort)
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Maddison Project Database catalog - countries, regions, release metadata
get
Long-run GDP and population time series for one country
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World GDP per capita and population aggregate time series
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Regional GDP per capita and population for all 8 Maddison regions
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Variable dictionary, methodology, and citation policy
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Top N countries by GDP per capita or population for a year
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Population-only isolated time series for one country
SEC EDGAR
11
Statistical Agencies
165
Sugra Entity
11
Sugra NetAtlas
65
Technical Indicators
113
Transportation
21