# Free Statistics APIs

Page: https://free-web-services.com/web-services/open-data/statistics/

Statistics APIs give the official figures of national statistics offices and international bodies such as Eurostat, the OECD, the UN and the World Bank: population, prices, jobs, the economy and development goals. Use them for charts, reports and research; most need no key.

## Services

| Service | API key | Formats | Free use |
|---|---|---|---|
| [BLS Public Data API](https://free-web-services.com/web-services/open-data/statistics/bls-public-data-api.md) | Not needed | JSON | Free; version 1 needs no registration, version 2 needs a free registration key and allows more series, years and calculations. |
| [CBS Open Data (Statistics Netherlands)](https://free-web-services.com/web-services/open-data/statistics/cbs-open-data-statistics-netherlands.md) | Not needed | JSON, XML | Free, no key needed. |
| [data.europa.eu Search API](https://free-web-services.com/web-services/open-data/statistics/data-europa-eu-api.md) | Not needed | JSON | Free, no key needed. |
| [Eurostat API](https://free-web-services.com/web-services/open-data/statistics/eurostat-api.md) | Not needed | JSON | Free, no key needed. |
| [OECD Data API](https://free-web-services.com/web-services/open-data/statistics/oecd-data-api.md) | Not needed | JSON, XML, CSV | Free, no key needed; the OECD limits how many queries one user may send per hour. |
| [ONS API (Office for National Statistics)](https://free-web-services.com/web-services/open-data/statistics/ons-api.md) | Not needed | JSON | Free, no key needed. |
| [Statistics Canada Web Data Service](https://free-web-services.com/web-services/open-data/statistics/statistics-canada-web-data-service.md) | Not needed | JSON, CSV | Free, no key needed. |
| [UN SDG API](https://free-web-services.com/web-services/open-data/statistics/un-sdg-api.md) | Not needed | JSON | Free, no key needed. |
| [US Census Data API](https://free-web-services.com/web-services/open-data/statistics/us-census-data-api.md) | Needed, free | JSON | Free with a free API key. |
| [World Bank Indicators API](https://free-web-services.com/web-services/open-data/statistics/world-bank-indicators-api.md) | Not needed | JSON, XML | Free, open data, no key needed. |

## Questions

**Which free statistics APIs work without an API key?**  
BLS Public Data API, CBS Open Data (Statistics Netherlands), data.europa.eu Search API, Eurostat API, OECD Data API, ONS API (Office for National Statistics), Statistics Canada Web Data Service, UN SDG API and World Bank Indicators API work without a key, according to their documentation. Most keyless services ask you to keep the number of requests reasonable, and some ask for a User-Agent that names your app.

**Are these statistics APIs really free?**  
The services here can be used without paying, at least on a free plan or free tier, often with limits such as a number of requests per day or non-commercial use only. The table above quotes what each service says about its free use; check the provider's own terms before you rely on it.

**How up to date is this list?**  
The address of every service is checked about once a week, and services that stop working or stop being free are removed. This list last changed on November 8th, 2026.