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The Graph is an indexing protocol for querying networks such as Ether and IPFS. Anyone can build and publish open APIs, called subgraphs, to make data easily accessible.

ETH developed the online compilation tool REMIX, very simple, hacker do not need to install any other programs or configure the system environment, mainland users may need to go over the wall.

Inventor Quantitative Platform by Inventor PTE LTD is a cloud-based platform for quantitative enthusiasts (broadcaster). We provide you with accurate backtesting capabilities, high-speed live trading interface, easy-to-use API documentation, and a library of easy-to-follow strategies for you to quickly implement and use your own quantitative trading strategies. We have stringent performance and security requirements, and our online platform integrates the complete process of strategy development, testing, optimization, simulation and live trading. We support high frequency trading strategies, various arbitrage strategies, as well as multi-data, multi-variety, multi-period hybrid strategies, commodity futures and international commodity futures, and almost all mainstream blockchain trading platforms. Our founding team has rich experience in finance and Internet, including profound programmers, financial elites who have been engaged in fund, futures and securities industry for many years, as well as technical experts from BAT, we are committed to building the most efficient and easy-to-use quantitative trading platform.

Build a model for checking contracts yourself via github.

The 0x API is a professional-grade mobility aggregator that supports the future of DeFi applications

CoinAPI is a platform that provides a fast, reliable and unified data API for the cryptocurrency market.