Side-by-side comparison of countries for one variable-year

GET

/api/v1/research/pwt/compare

Last modified:2026-05-10 09:22:39

Maintainer:Not configured

OperationId:research_pwt_compare

Returns a single-year cross-section of up to 10 countries for one Penn World Table variable. Pass a comma-separated list of ISO 3166-1 alpha-3 codes via countries. Results are sorted descending by value, with any countries missing from the requested year surfaced in missing_countries. Useful for quick scatter-plot data or benchmark tables (e.g. compare the G7 on ctfp or the BRICs on rgdpo). Published under CC BY 4.0 with attribution to Penn World Table (Feenstra, Inklaar & Timmer, University of Groningen).

Request

Authorization

API Key

Add parameter in header

x-api-key

Example:

x-api-key: ********************

Query Params

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Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location '/api/v1/research/pwt/compare?countries=USA%2CCHN%2CDEU%2CJPN%2CGBR&variable=rgdpo&year=2020&version=pwt1100' \
--header 'x-api-key: <api-key>'

Responses

🟢200

application/json

Ordered cross-section of requested countries for one variable-year plus missing-country list.

Bodyapplication/json

Example

{
    "data": {
        "version": "pwt1100",
        "variable": "rgdpo",
        "year": 2020,
        "observations": [
            {
                "countrycode": "USA",
                "country": "United States",
                "value": 0
            }
        ],
        "count": 3,
        "requested_countries": [
            "USA",
            "CHN",
            "DEU"
        ],
        "missing_countries": [
            "string"
        ],
        "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

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Modified at 2026-05-10 09:22:39

World aggregate time series (sum or mean across countries)

TFP panel - Penn World Table productivity series