Best Crypto APIs for Polkadot

Since 2017, we’ve helped over 400 organizations—ranging from exchanges to financial institutions—manage more than $110B in digital assets. Our services include robust support for staking, blockchain nodes, APIs, DeFi, and MPC wallets, all backed by a globally resilient architecture built for security, compliance, and scale.

Accointing by Glassnode features a comprehensive array of tools designed to address critical needs, including: 1. Tax Reports, which encompass Custom Tax Reports, integration with tax software, and necessary forms such as Form 8949 and TurboTax, alongside optimization tools like the Trading Tax Optimizer for tax loss harvesting; 2. Portfolio Tracking, which offers insights into the market, customizable market lists, alerts, and sentiment analysis; and 3. Management, focusing on Portfolio Historical Performance and Asset Allocation. The platform prides itself on delivering the quickest and most user-friendly onboarding experience available, supporting over 300 major exchanges, NFTs, and wallets, and allowing data import on desktop, iOS, and Android devices, as well as the option to manually input transactions across all platforms. Featuring a visually appealing dashboard, the desktop platform ensures an engaging user interface that enables users to monitor their performance and transactions related to DeFi, CeFi, and NFTs in real-time, all while offering an exceptional user experience. By prioritizing the user journey, the tool facilitates effortless classification of trades and transactions, making it easier to track and manage overall performance efficiently. This seamless integration of features makes Accointing a valuable asset for crypto investors seeking comprehensive financial insights and management tools.

Binance Exchange stands out as the premier cryptocurrency exchange on a global scale. With the capability to handle over 1.4 million orders each second, it ranks as the largest crypto exchange in terms of trading volume and is recognized as one of the quickest platforms worldwide. The emphasis on security, reliability, and rapid execution makes it appealing to both crypto enthusiasts and seasoned traders. This blend of features not only reinforces its reputation but also fosters a vibrant community of users.

NOWNodes is a robust RPC provider granting API access to Full and Archive Nodes across 110+ blockchain networks. It supports various protocols including Tendermint, Blockbook, and Index, with availability on both mainnets and testnets depending on the chain. The service delivers a reliable, scalable infrastructure with 99.95% uptime, ~0.6s response time, and capacity for over 15,000 transactions per second—ensuring developers uninterrupted access to accurate blockchain data.

Our goal is to equip the innovators of the future by delivering a comprehensive and powerful data framework tailored for the entire blockchain landscape. Dive into and contribute to the most extensive blockchain data available online. Consolidate historical balances, positions, and profit and loss across numerous DeFi platforms to create engaging and dynamic interfaces for your audience. Develop analytical dashboards that showcase asset price trends, liquidity, and return on investment. Take advantage of our quick start tutorials, how-to manuals, sample code, and more, enabling seamless integration of blockchain data into your project through the Covalent API. Covalent offers a cohesive API that ensures complete transparency and insight into assets across various blockchain networks. In essence, we provide a singular API that allows you to retrieve detailed and granular blockchain transaction information from multiple blockchains without requiring any coding expertise. This makes it easier than ever for developers to access and utilize blockchain data in their applications.