APIs

Property

• https://developer.zoopla.co.uk/

Misc

• https://aws.amazon.com/data-exchange/why-aws-data-exchange/apis/
• https://www.gov.uk/government/statistical-data-sets/price-paid-data-downloads

Finance

• ProfitView
• Interactive Brokers
• Alpaca
• Onanda
• Quandl
• Tiingo
• Xignite
• Alpha Vantage
• Barchart
• EOD Historical Data
• Finnhub
• IEX Cloud
• Polygon
• Tradier
• Yahoo Finance