Alchemy
4.9
Alchemy is a premium Web3 development platform providing blockchain APIs and infrastructure tools used by thousands of dApp developers to build on Ethereum and other chains.
Coinmetrics
4.8
Coin Metrics Market Data Feed is an institutional-grade feed offering real-time and historical market data from spot, futures, options, and decentralized exchanges. It delivers normalized trades, quotes, order books, candles, futures open interest, funding rates, liquidation data, etc., all via unif ...
DefiLlama
4.8
DefiLlama API is a public (and partially premium) API that provides access to a wide range of DeFi metrics, including Total Value Locked (TVL), protocol fees & revenue, token prices, yield/APY data, user activity, unlock schedules, and more. It supports both real-time and historical data, with endpo ...
Circle
4.7
Circle's API Reference provides developers with a RESTful suite of endpoints for handling digital dollars (USDC & EURC), payments, payouts, transfers, wallets, and related financial operations. It includes a live API sandbox/playground to test requests safely, detailed data models (e.g. for transfer ...
Glassnode
4.7
Glassnode Basic API provides live and historical on-chain and market data via a single REST API. It supports dozens of blockchain metrics (addresses, supply, transactions, realized/unrealized P/L, etc.), market indicators, and time-series data. Access is via tiers: some metrics/data are free or incl ...
Nansen
4.7
Nansen's API at www.nansen.ai/api provides programmatic access to onchain data across multiple blockchains, enabling tracking of tokens, wallets, exchange flows, whale movements, and token inflows/outflows for AI agents and dApps. Key features include proprietary labeling of 300M+ addresses and 1K+ ...
CoinGecko API
4.6
CoinGecko's API delivers real-time and historical crypto data covering prices, market cap, volume, and NFT floor prices for over 18,000 assets across hundreds of exchanges.
CoinParika
4.6
CoinPaprika API provides comprehensive cryptocurrency data via 25+ endpoints, covering 54,000+ assets, 350+ exchanges, and 13 years of historical data from 500+ sources. Features include real-time prices, market intelligence, and support for apps, bots, and analytics. Free tier available for data sc ...
0x
4.6
0x provides developer APIs for building decentralized trading applications, aggregating liquidity from 130+ exchanges across Ethereum, Base, Arbitrum, and other major chains.
Etherscan
4.6
Etherscan APIs provide developers with robust tools to access Ethereum blockchain data, including transactions, blocks, addresses, tokens, and gas prices. Key endpoints cover account balances, contract details, token transfers, and network stats, with support for real-time and historical data. The A ...