# Tiingo API

Category: [Finance](https://free-web-services.com/web-services/unit-convertors/fiinance/)  
Page: https://free-web-services.com/web-services/unit-convertors/fiinance/tiingo-api.html  
Documentation: https://www.tiingo.com/documentation/general

The Tiingo API gives daily prices with decades of history for US and Chinese stocks, ETFs and mutual funds, for example to backtest an idea. Requests are GET calls with a token header, and the answers are JSON. Free with a free API key for 50 requests an hour, 1,000 a day and 500 symbols a month, for personal use only.

- API key: Needed, free
- Pricing: Free with a free API key for 50 requests an hour, 1,000 a day and 500 symbols a month, for personal use only.
- Commercial use: Not on the free plan
- Formats: JSON
- Interface: REST, HTTP-GET
- Provider: tiingo.com

Example request:

```sh
curl 'https://api.tiingo.com/tiingo/daily/aapl' \
  -H 'Authorization: Token YOUR_API_KEY'
```

Replace YOUR_API_KEY with your own key.