QuantConnect is an amazing service!!! QuantConnect provides an amazing service with their data and servers and the ability to run algorithms as if I were a hedge fund. I wouldn't be where I am without QuantConnect!!!

I wasn’t a programmer I wasn’t a programmer, took a python basics course on youtube and their free bootcamp course and I was surprised how quickly I picked up object oriented programming and algorithmic trading coding on their platform. The stocks data is free up to seconds timeframe, after a long research on competitors I choose quantconnect and it was up to my expectations.

Complex, difficult API, slow backtesting Extremely slow backtesting and very complex APi with bad documentation - be ready to spend many hours trying to understand the overly complex API that is changing all the time. And did I mention that support costs? So if a anything is complex you won't get answers from the staff unless you PAY them. I give them 2 stars as they have reasonably reliable data. The platform itself is only worth one star. note: if you ask about slowness or any other thing negative on their forum they delete the posts.

I've been using it for around 6 months I've been using it for around 6 months. My bot is not ready yet, but it's still my best choice for these privileges: 1. connection with the interactive brokers 2. easy to use Python 3. Real market data is available 4. many built-in Python libraries. I will add here that I started a very nub in coding, and it is not easy to begin there, I mean things like data collection, especially for futures (I still haven't tried Options so far). With the help of CHatGPT which also knows the QuantConnect environment, it is now possible to code my own professional strategy for trading,

Recommended I have been programming on my bot for over 2 years. In the beginning it was difficult to get to know the platform because there is a lot of possibilities coming at you. But once you understand how this platform works and were to find the information. It's a pleasure to work on your bot. Pros: - Strong community that mostly answers your questions in 24h or max 48 hours. - Working locally or on the platform - Possibility of coding 100% your own strategy - Live Trading with a lot of markets (Equity, Crypto, Forex, Futures). - They listen to proposals to improve the platform and take immediate action. - If using the bronze membership your getting professional help within an hour. (It's normal they charge an amount for the professional help, nothing is free these days.) - Implementing email, sms, telegram messages, ... of the orders the bot is making. Cons: - If u have zero experience programming in Python or C# it's hard to program your own bot despite their learning center. - Maybe an app on the cellphone would be nice. So you can check your bot/code anytime you want (not would be something extra). A tip: Keep persevere once your bot is trading live it's a reward for all the hard work.