Best Blockchain APIs

One magic line of code supercharges your development with the world’s most powerful blockchain developer platform, relied upon by 70% of the world's top Ethereum apps. Alchemy Supernode is the most widely used Ethereum API. Get all the functionality of a node, including JSON-RPC support, but with the supercharged reliability, data correctness and scalability needed to run world-class applications on the blockchain. Alchemy Build is a no-configuration in-house suite of developer tools to prototype, debug, and ship products faster. Instantly search through millions of historical requests, view real-time transactions in the mempool, make JSON-RPC calls directly from the dashboard, and quickly scan recent requests and errors. Alchemy Monitor is a comprehensive suite of dashboards and alerts for app health, performance, and user behavior. Instantly check on the health of all your apps in one place, gain user insights without compromising privacy, and get automated alerts.

web3.js is a collection of libraries that allow you to interact with a local or remote ethereum node using HTTP, IPC or WebSocket. A Bloom filter is a probabilistic, space-efficient data structure used for fast checks of set membership. That probably doesn’t mean much to you yet, and so let’s explore how bloom filters might be used. Imagine that we have some large set of data, and we want to be able to quickly test if some element is currently in that set. The naive way of checking might be to query the set to see if our element is in there. That’s probably fine if our data set is relatively small. Unfortunately, if our data set is really big, this search might take a while. Luckily, we have tricks to speed things up in the ethereum world!

Actively participating in network proposals and providing a voice to token holders in governance matters. Offering in-depth reporting of staking rewards for tax and compliance optimization. Building on Web 3 shouldn't be hard. DataHub eliminates the hassle of running your own infrastructure so that you can focus on building. View proposals and participate in on-chain governance via Hubble. View transactional and staking data updated in real-time, as well as all historical validator and staking data. Learn the basics of new protocols and discover the perfect network for your DApp. Figment operates a highly secure network of Proof-of-Stake (PoS) validators that enable token holders to secure networks, participate in governance, and earn yield. Figment’s DataHub platform lets developers use the most powerful and unique features of a blockchain without having to become protocol experts, accelerating the development of new Web 3 applications.

We started architecting Sequence in January 2018 to empower our team and solve our needs at Horizon, the parent company behind Sequence. The Sequence platform powers all Horizon's products: Skyweaver, which some call "the best blockchain game"; and Niftyswap, the decentralized marketplace for web3 collectibles. Users can access Sequence from anywhere: desktop, mobile, or tablet. Developers can embed Sequence on any screen, game, or dapp. Collectibles automatically display with artwork and metadata. Perfect for viewing and trading. DAZN Boxing, from global sports entertainment platform DAZN, uses Sequence Wallet to onboard users to web3 and its NFT collections. Query all token and NFT balances, history, metadata, and market prices on many EVM chains. Mint collections and airdrop tokens to your community quickly and easily.

Coinbase Cloud provides a suite of easy-to-use infrastructure products and services on multiple blockchains. Our mission is to advance the crypto ecosystem with secure and reliable infrastructure. We’re now a standalone product line at Coinbase and we continue to support our customers, some of the most respected names in crypto and financial technology. The easy-to-use, secure infrastructure platform powering the world’s top crypto exchanges, custodians, and funds. Run secure, fully managed node clusters to participate in 23 decentralized protocols and earn participatory rewards. Connect to blockchain data on 33 protocols to build Web3.0 applications. Stake digital assets securely in 12 protocols with our non-custodial public validators. Access structured blockchain data and transaction information efficiently and reliably.