14 Best Crypto API & Blockchain APIs for Developers 2024

Crypto, Payment, Bitcoin, Ethereum, DeFi, Token Price API, Blockchain api services

Published in
11 min readMar 12, 2019


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.

1. Bitquery

Bitquery is a leading blockchain data provider, offering realtime and historical data on over 40 chains through APIs, streams, and websockets.

It’s developer-friendly APIs, and extensive documentation make it the go-to choice for teams building crypto applications.

Bitquery offers a comprehensive range of data products tailored to meet the diverse needs of users in the crypto space, including developers who are reading this blog. These offerings encompass analytics, smart contract monitoring, market insights, exchange data, and more.

With Bitquery, you can easily create dApps using the Streaming API. You can also build your own NFT Portfolio Tracker using the Bitquery NFT API. Plus, you can take on cool projects like making a telegram bot for whale alerts and a Crypto P&L Calculator. And guess what? You can even construct TradingView Charts with real-time blockchain data!

Here are some of the APIs they’ve got:

Easily explore transaction tracing on ETH, BSC, and Arbitrum. The Tracing tab on each contract page allows you to view the complete tree of traces, showcasing the flow of funds (tokens) from one address to another within the transaction. Visualize complex fund movements effortlessly with our intuitive interface.

Developers can take advantage of the free developer plan, requiring no credit card information.

Also Read: Tracking Bitcoin Seized by the US Government

2. QuikNode

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.

3. Swapzone

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.

4. SimpleSwap

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 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.

5. Mobula API

Mobula API is a data solution for real-time market price with the best industry coverage (+2.3M cryptocurrencies) & often-time most affordable (50% cheaper than CoinMarketCap), with the most generous free plan (x3 more calls than CoinGecko).

Mobula API provides historical market data as well as cryptocurrency metadata (website, logo, etc) and multi-chain wallet data (historical wallet net worth, transactions, etc.).

Use coupon MONK15 to get 15% off first month

6. Coin API

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.

7. CoinMarketCap API

CoinMarketCap is a website that tracks exchange and liquidity markets for a variety of cryptocurrencies and digital assets. As one of the most well-known resources in the crypto space, CoinMarketCap is a top data aggregator when it comes to tracking crypto markets. CoinMarketCap also has a professional API for traders and developers that includes complete historic cryptocurrency market data since 2013.

CoinMarketCap API has a limited free plan that quickly increases in price based on the number of monthly call credits.

8. Coincap.io API

CoinCap is a tool that collects real-time pricing and market activity for over 1,000 cryptocurrencies, with the goal of providing transparent and accurate data on digital asset markets. Created by the ShapeShift team, CoinCap API is free for all users.

CoinCap API functions well as a free API for aggregating real-time prices and markets but can fall short as a solution that requires accurate historical data, such as backtesting portfolio strategies.

9. CryptoCompare API

CryptoCompare is used by a wide range of businesses, investment institutions, and crypto companies. CryptoCompare includes a variety of data from market, trade, blockchain, and social sources.

CryptoCompare’s API provides highly reliable and scalable endpoints, reaching 180 million requests per hour at peak times and collecting 800+ trades per second. Their global data centers support over 30k clients.

10. BitPay

BitPay is a Bitcoin and cryptocurrency payment processor that enables merchants and consumers to instantly accept cryptocurrency as payment without risk or price fluctuations. Currently, credit cards can charge up to 3% in processing fees on every transaction. Compared to credit cards, BitPay only charges a flat 1% settlement fee for crypto-to-fiat bank conversion. Furthermore, traditional payment methods require customers to provide sensitive personal information that could lead to fraud and identity theft.

The BitPay API can be used to create and manage invoices, issue refunds, manage bills, retrieve real-time rates information, view merchant ledger entries, and much more.

11. NOWNodes

NOWNodes provides access to Explorer and Node APIs. 40+ most popular blockchain networks connected. With NOWNodes you can:

• add new blockchain networks, coins, and tokens;
• get a handy backup solution to maintain the network smooth work & quality of service;
• concentrate on product development while reducing infrastructure costs.

The service has a Free plan for up to 20,000 requests per day for any supported network.

You can start working with blockchain nodes using NOWNodes,free plan is available.

12. CryptoAPIs

The upgraded version 2.0 of Crypto APIs includes a powerful product suite consisting of Wallet as a Service, Blockchain Data, Blockchain Events, Blockchain Tools, Blockchain Automations and Market Data.

The infrastructure layer utilizes Kubernetes and the OpenAPI 3.0 specification, making it easy to scale and customize. Using a single point of integration, customers can get access to over 170 endpoints connected with top blockchain protocols. Developers can choose between 9 SDK libraries in their preferred language and add the integration to their system.

The pricing options are usage-based, so you can always upgrade your plan if you need to serve higher demand or scale fast. Using Crypto APIs Wallet as a Service product can also save you up to 90% on transaction network fees.

Use the coupon GET30 to get a 30% off for new subscriptions.

13 . Shrimpy API (Shutdown)

Shrimpy’s Universal Crypto Exchange API allows 3rd-party application developers to leverage Shrimpy’s trading engine and server-side architecture to quickly implement and deploy their own application. Shrimpy’s API offers a low-latency order execution & automated trading engine based on real-time data, with the ability to manage users AND scale usage as necessary.

Shrimpy APIs are the most powerful trading APIs in the market. They connect to a network of the most popular crypto exchanges. Providing real-time full order book data, limit orders, open orders, smart order routing, exchange account management, user management, and a complete cloud infrastructure solution right out of the box. All of this plumbed into a single set of APIs that work across every exchange.

Development teams are often stretched thin due to limited resources and tight schedules. This challenge becomes further magnified when it comes to developing crypto apps, which currently lacks tools for scaling operations. For independent and 3rd-party app developers, maintaining a working business product is extremely costly.

About Shrimpy

Shrimpy.io is a crypto management tool that lets anyone manage their own cryptocurrency assets like an index portfolio. Users are able to configure a custom cryptocurrency portfolio and implement a passive rebalancing strategy, removing the hassle of having to actively trade crypto. Shrimpy also features Social Trading and User Insights in its premium subscription service.

Shrimpy for Consumers

Users are able to configure a custom cryptocurrency portfolio and implement a passive management strategy, removing the hassle of having to actively trade crypto.

The free version of Shrimpy includes complete automated trading, indexing and rebalancing features for ALL users. Shrimpy also offers a monthly premium subscription for $8.99/month. The premium subscription includes:

Shrimpy Social: Follow, communicate, and share strategies with other Shrimpy traders.

Shrimpy Insights: Learn how other Shrimpy users are constructing and managing their crypto portfolio.

Advanced Backtesting: An robust backtesting tool for evaluating custom cryptocurrency portfolio & strategies.

Shrimpy’s Crypto Trading API for Developers

Beyond the consumer app, Shrimpy also offers a Trading API for developers looking to integrate scalable exchange trading functionality into their app.

Shrimpy’s Universal Exchange API was created as a cloud-based solution to address several crypto developer roadblocks including Exchange Trading, Product Scalability, and User Management. With Shrimpy’s API in hand, developers are not limited in scope when it comes to creating the next era of groundbreaking products that will shape the future of crypto.

Shrimpy’s API is a cryptocurrency trading API that is readily compatible with all of the following exchanges and their API endpoints: Binance API, CoinbasePro API, Bittrex API, Kraken API, Gemini API, Poloniex API, Huobi API, KuCoin API, Bibox API, BitMart API, and HitBTC API. Instead of having to manage all connections to every exchange, users can simply leverage Shrimpy’s existing crypto exchange trading infrastructure and focus on actual product development.

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Shrimpy is a crypto exchange trading bot for portfolio management, indexing the market, rebalancing, and strategy backtesting. Join now at shrimpy.io.