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Alpaca Data API
Robinhood
Alpaca Broker API
Alpaca Trading API
SparkFin
Real-time Market API
Bullish.email
Alpaca Fractional Trading API
API TrackerBased on our record, Alpaca Data API seems to be more popular. It has been mentiond 8 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Have you looked at Alpaca's Market Data API or Polygon.io. Both premium options are reasonably priced and give you access to both historical and real time trades. Source: over 3 years ago
I think https://alpaca.markets/data still offers free api keys for research purposes. Source: almost 4 years ago
Https://alpaca.markets/data - As you see you get 100% market coverage for all US exchanges and unlimited API / WebSocket access. They also have 1min bar historical data (I do not know about the tick level). I can not speak to the quality of the API Access as I have a TotalView subscription. Source: almost 4 years ago
Free tier for researchers, now $99/month for the algotrading access (link: https://alpaca.markets/data). Source: about 4 years ago
Https://alpaca.markets/data free plan has 200 calls/minute limit which is what you want anyway. Source: over 4 years ago
Postman - The Collaboration Platform for API Development
Robinhood - Free stock trading service.
swagger.io - Swagger is an open source RESTapi Documentation Tool.
Alpaca Broker API - Launch your own commission-free trading app
Treblle - End to End APIOps Platform
Alpaca Trading API - Simple REST API for commission-free stock trading