13 Best Crypto API & Blockchain APIs for Developers

Bitcoin recently marked its 10th anniversary on January 3, 2019, a full decade since the genesis block was mined by Satoshi Nakamoto back in 2009. The beginning years of Bitcoin history flew under the radar for most people, aside from the most passionate individuals in the crypto community.

While infrastructure development was slow to start, the bull run of 2017 brought a new wave of products onto the crypto scene. Today, development in crypto is at an all-time high, with new developers flocking from other industries in search of a “crypto gold rush”.

Feeling the itch to develop your own crypto application? Whether you’re a cryptocurrency developer, trader, or just passionate about all things crypto, there are APIs available that are designed to make your crypto journey smoother. Whether you want to develop a personal trading bot, a payments application, or business settlement solution, there are APIs that can help you get started.

Let’s explore some of the best crypto APIs in the market.

Bitquery provides blockchain data APIs for more than 40 blockchains. These APIs are built using GraphQL technology. Therefore, you can access data across blockchains using a single GraphQL endpoint. In addition, you can write GraphQL queries to get specific data based on your need.

Besides, Bitquery’s Coinpath APIs, DEX APIs, Transfer, and Balance APIs; You can also pull generic blockchain data such as SmartContractCalls, Events, and arguments.

Also Read: Best Blockchain Analysis Tools and How They Work?

If you are a developer, running a node is always a pain. You need a dedicated device and maintain it. This required extra skills and time. Besides, security is always a big concern, but QuikNode solves these problems.

To start with QuikNode, you need to sign up and get your free Node URL to connect your node. It gives the best onboarding experience for new developers.

QuikNode supports 20+ blockchains and provides much better infrastructure from Infura.

Swapzone is a one-click cryptocurrency exchange aggregator compiling over 1000 crypto assets of 20+ exchange providers. The service is instant and requires no registration or KYC procedures.

Swapzone API is a white-label solution transferring all the features of Swapzone’s services to any cryptocurrency project; Swapzone overtakes all the communication with providers, customer support, and infrastructure update yet you can build the API seamlessly into your interface. It also provides a transparent and flexible rewarding system including the extra fee (markups), that can increase the partner’s commission and lead to higher profit.

Swapzone API

The API is embedded through the REST technology, so it could be introduced to any flow, whether it is a desktop service or mobile application, with no additional coding needed.

The cryptocurrency exchange API provided by Swapzone is a handy option to expand the number of assets, back up your service with a stable network of exchange providers and quality customer support or enrich your service with an instant crypto exchange solution.

SimpleSwap provides its customers an excellent opportunity to exchange 500+ cryptocurrencies without sign-up. Being on the market for 4 years, the project has earned the trust and love of crypto enthusiasts.

SimpleSwap

SimpleSwap API is free and convenient to use. On average, the integration takes one day only. With the help of SimpleSwap API, applications can implement the cryptocurrency exchange service. Developers can design their own crypto services and, using different API methods, get access to all currency pairs, estimated exchange rates, and much more. API uses HTTP protocol, and the responses are delivered through JSON API format.

The detailed technical documentation can be seen here: https://api.simpleswap.io

After registering an affiliate account, partners can get the API keys and customize their own commission from each completed transaction (up to 2%). SimpleSwap API is sustainable and has 99.95% uptime. Different wallets and exchange partners have already integrated this API for their needs.

CoinAPI is a service provider that is solely focused on providing price and market data. With over 20TB of raw market data in its database, CoinAPI has a reputable name for high-quality crypto data in the market.

CoinAPI provides real-time data streaming services and a database of historical market data. CoinAPI has servers located all around the world, designed to transfer data reliably and quickly.