Catalog of countries, year range, and variable dictionary

Discovery endpoint for the Penn World Table main country-year matrix. Lists every country present in the selected release (185 countries for PWT 11.0; 183 for PWT 10.01) with its first and last observation year, the panel year range, and the full list of variable names accepted by the other endpoints. Use this before calling /country/{iso3}, /country/{iso3}/{variable}, /top, or /compare to confirm the exact ISO3 codes and variable spelling. Published under CC BY 4.0 with attribution to Penn World Table (Feenstra, Inklaar & Timmer, University of Groningen).

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🟢200

application/json

Catalog payload with country list, year range, variable list, and release metadata.

Bodyapplication/json

Example

{
    "data": {
        "version": "pwt1100",
        "label": "string",
        "base_year": "string",
        "doi": "string",
        "release_time": "string",
        "country_count": 185,
        "year_range": {
            "max": 2023,
            "min": 1950
        },
        "variable_count": 47,
        "variables": [
            "string"
        ],
        "countries": [
            {
                "countrycode": "USA",
                "country": "string",
                "currency_unit": "string",
                "first_year": 0,
                "last_year": 0,
                "observations": 74
            }
        ],
        "attribution": "string"
    },
    "meta": {
        "endpoint": "/api/v1/fred/us/cpi",
        "data_time": "2026-04-16T14:30:00Z",
        "response_time": "2026-04-16T14:30:12Z",
        "provider": "Sugra API v1.0.1",
        "source": "string",
        "fallback_used": true,
        "fallback_chain": [
            "string"
        ],
        "cached": true
    }
}

🟠401

🟠422

🟠429

🔴503

Catalog of countries, year range, and variable dictionary

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