Digital currencies have piqued the curiosity of both individual and institutional investors in recent months. Bitcoin and other cryptocurrencies have risen to prominence as a new asset class with exceptional returns over the last decade.  At the heart of crypto-success lies cleverly wrapped APIs. 

APIs allow businesses to access a wide range of resources and enable businesses to enter markets they may not have previously considered. APIs enable one to harness real-time crypto data to aid trades, construct a trading bot, perform academic research on cryptocurrency, or learn to code with crypto data. Keeping track of wallet contents, checking market prices, and even making and receiving transactions are all possible with crypto APIs. APIs are highly beneficial for almost any project involving bitcoin or a blockchain.

There are numerous APIs to select from if you are a cryptocurrency trader, speculator, developer, or someone interested in undertaking cryptocurrency research. Many cryptocurrency exchanges have made their APIs public, allowing developers to connect to their platforms. Here is a list of five APIs: 

1| BraveNewCoin (BNC) API

BNC’s cloud-based cryptocurrency APIs provide a quick and accurate reference for real-time and historical crypto data from over 200 exchanges, covering thousands of assets and marketplaces. Institutions and the developer community have access to a collection of private and public API maintained by BNC. The API provides a volume-weighted spot price for 1500 plus cryptographic assets from across the global network of crypto exchanges. They also deliver a comprehensive history of crypto-asset market data across all products, including the LX program, Crypto Spot Rates, Crypto Market Rates and Market Cap Table.

2| CoinAPI

The data on the platforms is standardised. To maintain the highest level of quality, market symbol details and asset codes are double-checked by real humans. Moreover, on-demand data is delivered to the user using a simple HTTP RESTful API in JSON, XML or CSV formats. It provides access to a database of historical market data in addition to a real-time data streaming service. More than 20 TB of raw and preprocessed market data is presently available in the CoinAPI database.

3| Coinbase API

The API allows you to include bitcoin, bitcoin cash, litecoin, and ethereum payments into your website or app. They are capable of generating bitcoin, bitcoin cash, litecoin and ethereum wallets and addresses. One can buy/sell and send/receive bitcoin, bitcoin cash, litecoin and Ethereum. Securely storing bitcoin, bitcoin cash, litecoin and Ethereum, retrieving real-time or historical price information and receiving notifications when payments arrive are some of the capabilities it holds.

4| CoinMarket API

The API has up to five years of historical data available since 2013 to give users the chance to look more closely at the ups and downs of the crypto market to make an informed decision. The updated data will be helpful for building a wallet, a portfolio management tool or more. Current and past pricing for various cryptocurrencies are readily available, in addition to data aggregated from hundreds of exchanges and thousands of coins.

5| Bittrex API

Bittrex is a secure, dependable, and innovative digital asset trading platform built on Bittrex’s cutting-edge technology for crypto traders. Users can programmatically access their Bittrex accounts and execute trades, withdrawals, and deposits using the Bittrex API. It has a RESTful architecture and uses the API Key protocol for authentication. XML, JSON answer format, and URI Query String/CRUD request formats are all supported.

6| CoinGecko

CoinGecko is a cryptocurrency data aggregator that tracks over 6,000 different crypto assets on more than 400 exchanges across the world. CoinGecko is one of the  independent sources of trustworthy cryptocurrency statistics, and it is widely quoted in the field. CoinGecko measures community growth, open-source code development, key events, and on-chain metrics in addition to price, volume, and market capitalisation.

7| Poloniex API

Poloneix is owned by Circle and is one of the world’s largest crypto exchanges. Poloniex provides APIs for connecting with the exchange over HTTP and websocket. Both provide public market data read access as well as private account read access. The private HTTP API gives you private write access to your account. The public HTTP endpoint is accessed via GET requests while the private endpoint is accessed via HMAC-SHA512 signed POST requests using API keys.

8| HitBTC API

Utilising third-party applications or customised software, a user can trade multiple crypto and fiat trading pairs using the Hitbtc API. This API is a single-purpose API with a RESTful architecture that employs an API Key and HTTP Basic authentication approach. It supports XML responses as well as URI Query String/CRUD, FIX, and WebSocket requests. 

9| KuCoin API

Users of the KuCoin API can access their accounts via a programmable interface. A developer can use this API to create trading bots that users can employ to execute high-frequency trades. This API is a single-purpose API with a RESTful architecture that employs an API Key and OAuth 2 authentication approach. It can handle XML response as well as JSONP, URI Query String/CRUD requests.

10| Bitstamp API

 The Bitstamp API allows customised software (bots) and even third-party applications to have access to user accounts and execute trades. This API is a single-purpose API with a RESTful architecture that uses an API Key authentication model. It can handle XML responses as well as JSONP, URI Query String/CRUD requests.