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Yahoo Finance developer api

Last updated on 29 days ago
C
caaSuper Admin
Posted 29 days ago
Yahoo Finance doesn’t offer an official developer API, but you can still retrieve stock data through unofficial methods, such as third-party libraries or web scraping. Here are some ways you can work with Yahoo Finance data in Python:

### 1. Use yfinance Library (Unofficial API)

The yfinance library, developed by Ran Aroussi, is one of the most popular ways to fetch Yahoo Finance data in Python. It’s easy to use and works well for accessing stock prices, historical data, and other market information.

#### Installation
bash
pip install yfinance


#### Basic Usage Example
`python
import yfinance as yf

# Fetch data for a single stock (e.g., Apple)
ticker = "AAPL"
stock = yf.Ticker(ticker)

# Get historical market data
history = stock.history(period="1mo") # '1d', '5d', '1mo', '3mo', '6mo', '1y', etc.
print(history)
C
caaSuper Admin
Posted 29 days ago
# Get other information
info = stock.info
print("Company info:", info)

# Get dividend data
dividends = stock.dividends
print("Dividends:", dividends)

# Get recommendations
recommendations = stock.recommendations
print("Recommendations:", recommendations)
`

### 2. Accessing Multiple Tickers
You can also fetch data for multiple tickers at once:
C
caaSuper Admin
Posted 29 days ago
python
# Get historical data for multiple tickers
tickers = yf.Tickers("AAPL MSFT GOOG")
data = tickers.history(period="1mo")
print(data)


### 3. Using Yahoo Finance’s Built-In JSON Endpoints (Advanced)

For more control, you can send HTTP requests to Yahoo Finance’s hidden API endpoints, though this approach may be unstable. Yahoo Finance’s data is served as JSON objects embedded in the page source, which can be extracted using requests and json.

#### Example: Scraping with Requests and JSON
Here’s a simple example of how you could pull data, though keep in mind that scraping Yahoo Finance violates its terms of service.

python
import requests

url = "https://query1.finance.yahoo.com/v8/finance/chart/AAPL?region=US&lang=en&includePrePost=false&interval=1d&range=1mo"
response = requests.get(url)
data = response.json()
print(data)
C
caaSuper Admin
Posted 29 days ago
### 4. Using Third-Party APIs for Yahoo Finance Data

Several third-party providers wrap Yahoo Finance data in official APIs and offer more stable access. Examples include:
- **RapidAPI**: Provides access to a Yahoo Finance API via RapidAPI. Some plans are free, while others require a subscription.
- **Alpha Vantage, IEX Cloud, Twelve Data**: While not directly Yahoo Finance, these alternatives provide stock market data and are reliable for production use.

#### Example with RapidAPI
1. [Sign up on RapidAPI for Yahoo Finance](https://rapidapi.com/apidojo/api/yahoo-finance1/).
2. Install the requests library if you haven't already.

bash
 pip install requests
 


3. Use the following code snippet to get started:

python
 import requests

 url = "https://apidojo-yahoo-finance-v1.p.rapidapi.com/market/get-summary"

 headers = {
 "X-RapidAPI-Key": "YOUR_RAPIDAPI_KEY",
 "X-RapidAPI-Host": "apidojo-yahoo-finance-v1.p.rapidapi.com"
 }

 response = requests.get(url, headers=headers)
 data = response.json()
 print(data)
 
C
caaSuper Admin
Posted 29 days ago
### 5. Considerations and Limits
- **Unofficial Access**: Since Yahoo Finance doesn’t have an official API, yfinance and similar methods may break if Yahoo changes their site structure.
- **Terms of Use**: Always respect Yahoo Finance’s terms of service, particularly if scraping data.
- **Rate Limits**: Be mindful of rate limits, especially when using RapidAPI or similar third-party providers.

Using yfinance is generally the simplest and most effective method to access Yahoo Finance data. However, for professional and reliable applications, consider switching to a provider that offers official APIs, such as Alpha Vantage or IEX Cloud.
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