Top 9 Blockchain APIs for Developers

As the world embraces the decentralized revolution powered by blockchain technology, developers are seeking effective ways to integrate blockchain capabilities into their applications. This is where Blockchain APIs come into play, offering developers a gateway to interact with blockchain networks and access vital data.

With the help of these APIs, developers can unlock the potential of blockchain technology and build innovative solutions that leverage its security, immutability, and transparency. In this blog, we will delve into the world of Blockchain APIs, exploring nine top options that enable developers to harness the power of blockchain and propel their applications to new heights.

What is Blockchain Data?

Blockchain data refers to the information recorded and stored on a blockchain. A blockchain is a decentralized digital ledger that securely records transactions or data across multiple computers or nodes. This data can include transaction details, timestamps, digital signatures, and other relevant information. The blockchain's design ensures the stored data's transparency, immutability, and security, making it resistant to tampering or unauthorized modifications.

What are Blockchain APIs?

Blockchain APIs are essential tools for developers to interact with and utilize the functionalities of blockchain technology. They enable developers to access a secure and decentralized ledger through cryptographic methods. These APIs provide features such as creating, reading, updating, and deleting records on the blockchain, managing wallets, querying transaction histories, generating unique transaction addresses, and more. They allow developers to build applications requiring secure storage or information transfer without extensive knowledge of cryptography or blockchain development.

Blockchain APIs are widely used in finance, healthcare, and energy markets. As blockchain technology evolves, so do the capabilities and features of these APIs. The two main types of blockchain APIs are RESTful (Representational State Transfer) APIs, which use web-based protocols like HTTP/S requests, and JSON-RPC (JavaScript Object Notation Remote Procedure Call) APIs, which use remote procedure calls over network protocols like WebSocket or TCP/IP. In addition to connecting applications with specific blockchains, API providers often offer additional services such as wallet management tools and analytics dashboards. However, selecting a reputable provider that adheres to industry best practices is crucial, including encrypting transferred data using TLS encryption protocols (HTTPS) to ensure the security of private keys and sensitive information.

Blockchain APIs provide developers with an easy and secure way to interact with blockchain networks using familiar programming languages, enabling the development of applications requiring secure storage or transfer of information.

Best Blockchain APIs for Blockchain Development

Several blockchain APIs are available for developers, each with its own features and advantages. Let's look closely at some of the best blockchain APIs currently in the market.

  1. BlockCypher API : BlockCypher API is a popular choice that offers a simple interface for blockchain development. It supports Bitcoin, Ethereum, Litecoin, and Dogecoin, allowing developers to interact with these cryptocurrencies across various platforms. The API provides tools for working with smart contracts, addresses, transactions, blocks, etc. It also offers advanced features such as multi-sig support and SegWit compatibility.
  2. Chain API: Chain API is another widely used blockchain API that caters to experienced developers. It offers comprehensive features and good documentation, making it suitable for complex development tasks. The user-friendly interface allows API providers to set up first-party oracles easily and facilitates interactions with the Airnode protocol on multiple chains through a node dashboard.
  3. Coinbase API: Coinbase API provides an alternative option for blockchain development. Coinbase Pro API offers a range of functionalities, including real-time price sourcing, secure storage of digital currencies, buying/selling cryptocurrencies, and processing digital wallets. They also offer a premium API option with advanced features to meet specific blockchain solution requirements.
  4. Crypto APIs: Crypto APIs is a blockchain infrastructure provider that offers various services to simplify Web 3 development. They provide Wallet as a Service, Blockchain Data, Blockchain Events, Blockchain Automation, Blockchain Tools, and Market Data, catering to diverse solutions such as digital banks, exchanges, wallets, and more. Crypto APIs' SDK allows developers to access over 100 endpoints from a single provider, and it has garnered positive feedback from companies like Chainlink, Ledger, Nexo, and Paypal.
  5. Blockchain API: Blockchain API is a versatile provider that offers different APIs tailored to the needs of different customers. Their APIs cover wallets, payment processing, data querying, blockchain exploration, and crypto data analysis. The data storage is in blockchain format, providing JSON data for transactions. With a large developer community, accessible JSON data format, and integration with e-wallet accounts, Blockchain API is a competitive option for blockchain development.
  6. API: API offers a simple interface for blockchain development, supporting multiple programming languages. It emphasizes the importance of thorough application testing and keeping private keys confidential to ensure security.
  7. BitPay API: BitPay API, provided by BitPay, allows developers to interact with their BitPay accounts through a REST interface. The API enables tasks such as managing invoices, issuing refunds, and viewing merchant records. BitPay provides code libraries and customization options for developers to integrate their preferred programming languages.
  8. GetBlock API: GetBlock API is a popular choice for blockchain developers. It provides high-speed running nodes and secured API access for Bitcoin and Binance Smart Chain. GetBlock offers API, smart contract, explorer data services, and a blockchain development program with access to raw data and custom service level agreements (SLAs).
  9. Infura: Infura provides top-class infrastructure for decentralized applications. Their APIs support JSON-RPC over HTTPS and WebSocket interfaces, with subscription-based connections available. Infura's dashboard offers valuable insights and features for managing applications while their expert team handles network changes or upgrades. They also provide a supportive community and a library of resources to assist developers in building applications powered by decentralized protocols and networks.

Features of Blockchain APIs:

  1. Decentralized Storage: Blockchain APIs provide secure and distributed data storage, ensuring integrity and preventing tampering.
  2. Smart Contracts: APIs enable the execution of self-executing, automated programs on the blockchain, facilitating agreements without intermediaries.
  3. Cryptographic Hashing: APIs offer cryptographic hash functions for verifying the authenticity of digital assets and enabling secure ownership transfers.
  4. Distributed Ledger Technology (DLT): APIs utilize DLT to securely record and update information in a distributed database without a central authority, providing scalability and security.
  5. Public/Private Key Cryptography: APIs support public/private key cryptography for the secure transmission of encrypted messages, ensuring confidentiality and tamper resistance.
  6. Tokenization: APIs facilitate representing real-world assets in digital form, enabling secure transfer and trading on blockchain networks.

Different Types of Blockchain APIs:

  1. RESTful APIs: The most common type, allowing interaction with blockchains via HTTP requests for accessing data and submitting transactions.
  2. Web3/Ethereum JSON-RPC APIs: Specifically for Ethereum, enabling communication between Ethereum clients and building decentralized applications.
  3. Bitcoin Core RPCs: Designed for the Bitcoin network, providing access to core functions such as wallet creation and transaction data.
  4. Ripple APIs: For Ripple's distributed ledger technology supports payments, currency exchanges, smart contracts, and tokenized assets.
  5. Blockchain Data Feeds: Real-time feeds that provide up-to-date information about blockchains, facilitating monitoring and tracking.

Pricing of Blockchain APIs

The cost of blockchain APIs varies based on the type of solution, application complexity, and required customization. Basic blockchain APIs can range from free to several hundred dollars per month. Enterprise-level solutions with complex integrations and custom features can cost thousands to tens of thousands of dollars. Additional fees may apply based on usage, storage, or security.

Blockchain API Integration

Blockchain APIs can integrate with web and mobile applications, Blockchain-as-a-service providers, ERP systems, CRM software, financial accounting software, data analytics platforms, and cloud-hosted services. The blockchain api integrations enable secure transactions, exchange of information, data control, and access to distributed ledger records, providing enhanced security, efficiency, transparency, and trust. It is essential to consider these factors when choosing and utilizing blockchain APIs to leverage the benefits of blockchain technology in various industries and applications.


In conclusion, Blockchain APIs offer developers a gateway to leverage the power of blockchain technology. They provide secure access to blockchain networks, enable seamless integration, and offer features like smart contracts and decentralized storage. With enhanced security, transparency, and automation, these APIs pave the way for a decentralized future.