Crypto APIs

Build apps and websites with data from blockchains via these powerful APIs. Both free and paid ones are listed here.

Coinmetrics Coinmetrics 5.0 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 unified APIs.
Curve Curve 5.0 Curve’s public API (v1) provides REST endpoints covering pool metadata, tokens, lending stats, gauges, crvUSD activity, volumes & APYs, and other on-chain protocol metrics. It allows developers, analysts, and DeFi apps to pull real-time and historical data about Curve’s liquidity pools, reward structures, token balances, and protocol behavior in a standardized format.
Glassnode Glassnode 5.0 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 included in entry plans, while more advanced metrics (higher resolution, entity-adjusted, derivatives, etc.) require subscription or pay-upgrade.
Shibariumscan Shibariumscan 5.0 ShibariumScan API is a Blockscout-powered interface offering access to Shibarium Layer-2 on-chain data—allowing retrieval of transaction details, block info, contract calls, address balances, and token transfers. Developers can leverage it to build tools, dashboards, or analytics services over Shibarium’s chain activity, making it easier to explore and integrate L2 data into apps.
TokenInsight TokenInsight 5.0 TokenInsight API (aka “Crypto Open Data API”) is a full-suite data service that delivers live market metrics, historical data, ratings, and qualitative research across thousands of tokens, hundreds of exchanges, and over half a million markets. It provides endpoints for coin/token info, exchange details, rankings (top gainers/losers), ratings, news, research, and more — plus both free and paid tiers with differing rate limits, data access, and support. What sets it apart is the blend of both quantitative and qualitative data: beyond just prices and volumes, you also get project ratings, tokenomics, exchange assessments, and curated research content — all in one API. That makes it useful not just for trading or portfolio tracking, but also for appraisal, research, rating & ranking-type applications.
0x 0x 5.0 0x.org is a platform providing APIs for building financial apps on crypto rails, enabling decentralized trading with aggregated liquidity from 130+ exchanges and 7+ million tokens. Key features include Swap and Gasless APIs, modular DeFi solutions, and a dashboard for revenue tracking. Supports Ethereum, Base, Arbitrum, Optimism, Polygon, and more. Has powered 521+ projects with 140B+ USD volume.
Alchemy Alchemy 5.0 Alchemy is a premium web3 development platform providing robust blockchain infrastructure and advanced tools for building apps, wallets, and rollups. Powered by the Cortex engine for superior speed, reliability, and throughput, it supports top crypto apps with APIs for NFTs, tokens, transactions, and more, serving 100M+ users globally. Alchemy APIs provide robust infrastructure for web3 development, including Write APIs (Smart Wallets, Gas Manager, Bundler, Transact for secure, fast transactions) and Read APIs (NFT, Token, Transfers, Webhooks for data access and notifications). Supports EVM chains like Ethereum; features simulation, MEV protection, and developer dashboard for keys and integration.
Blockchain.com Blockchain.com 5.0 The Blockchain.com Explorer API provides REST and WebSocket endpoints for accessing blockchain data such as transactions, blocks, addresses, and real-time event streams. Developers can query things like block height, transaction hashes, address balances, charts/statistics (hasrate, difficulty, etc.), and subscribe to updates (new blocks or transactions) over WebSockets. It enables building explorers, wallet services, dashboards, analytics tools, and anything needing reliable on-chain info.
Bydfi Bydfi 5.0 BYDFi’s API provides developers with secure, well-documented access to market data, account info, order and position management for spot and derivatives (swap) trading. Users can generate/manage API keys, retrieve real-time pricing, place trades, monitor balances, and integrate trading tools into external systems. Designed for both automation and custom tool building, it supports a broad selection of assets and aims to be developer-friendly.
Canaan Canaan 5.0 Canaan’s API is designed specifically for ASIC mining hardware management, not for trading or market data like typical crypto exchange APIs. It provides endpoints for monitoring miner status, performance metrics (hashrate, temperature, power usage), configuring hardware settings, managing pools, and automating large-scale mining operations. Unlike trading APIs, which focus on order execution and price feeds, Canaan’s API is built to optimize mining farm efficiency, enable remote administration, and integrate directly with Avalon miners and related infrastructure.
Circle Circle 5.0 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 transfers, payouts, source/destination objects), authentication workflows, currency support (USD/EUR), and options for fiat-on/off ramps. What sets it apart is that it’s not a trading or order-book API — it’s built for programmable money infrastructure: managing stablecoin flows, moving funds between wallets and blockchains, and integrating compliant payments and payouts into business applications.
Coinbase Coinbase 5.0 Coinbase's Data API offers free access to onchain data, including transactions, balances (latest and lifetime), and historical info for addresses and assets. Key features: easy integration with APIs and SDKs, quick setup in three lines of code, and tools for building dApps. Benefits: simplifies onchain app development, supports crypto directories with reliable data for listings and analytics. Resources include documentation, GitHub, Discord community, and expert support; no specific pricing beyond free access.
CoinDesk CoinDesk 5.0 The CoinDesk Data API provides live and historical market data for cryptocurrencies, including prices, trade volume, derivatives and order book data from 300+ exchanges covering over 300,000 crypto/fiat currency pairs. It also offers on-chain metrics (transactions, active addresses, etc.), social sentiment insights, and normalized datasets suited for analytics, dashboards, portfolio tracking, and AI/ML applications. There are free and paid tiers, with varied rate limits and data access depending on subscription.
CoinGecko API CoinGecko API 5.0 CoinGecko's API delivers real-time and historical cryptocurrency data, covering prices, market cap, trading volume, and NFT floor prices for over 18,000 coins across 200+ networks. It offers RESTful JSON endpoints with a free Demo plan (30 calls/min, 10,000 calls/month) and paid plans starting at $129/month (500 calls/min, 500,000 calls/month). Key features include on-chain DEX data, portfolio tracking, and reliable aggregation from 1,000+ exchanges.
CoinMarketCap CoinMarketCap 5.0 CoinMarketCap's API delivers real-time and historical cryptocurrency data, including prices, market cap, trading volume, and exchange data for over 11,000 coins. It provides RESTful JSON endpoints with a free Basic plan (30 calls/min, 10,000 calls/month) and paid plans starting at $79/month (up to 500 calls/min, 500,000 calls/month). Key features include portfolio tracking, DEX data, and reliable aggregation from major exchanges.
CoinParika CoinParika 5.0 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 scientists; paid plans with 99.9% uptime SLA for enterprises.
DefiLlama DefiLlama 5.0 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 endpoints designed for querying individual protocols, blockchains, assets, and comparative metrics across multiple entities. The API is free under a basic “Open” plan, with usage limits, and there is a paid “Pro” tier that grants higher rate limits, access to advanced endpoints, and priority support. Citing DefiLlama as the data source is appreciated.
Etherscan Etherscan 5.0 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 API suite includes free and premium tiers, detailed in the documentation at etherscan.io/apis, offering scalable integration for dApps, analytics, and research, enhancing transparency and interaction with Ethereum’s ecosystem.
HitBTC HitBTC 5.0 HitBTC offers a modern REST & WebSocket API (version 3.0) that lets developers access live and historical market data, manage accounts, place and cancel orders, and trade on both spot and futures instruments. It includes streaming sockets for market data, trading, and wallet updates, with sandbox/testnet environments for safe experimentation. API keys can be customized with scope-based permissions (e.g. trades, withdrawals, balance) so users can limit what external tools are allowed to do.
Live Coin Watch Live Coin Watch 5.0 Its public API provides REST endpoints (using an API key) for accessing market overviews, individual coin data, historical metrics, fiat conversion, and exchange info. Data is JSON-formatted and supports various base currencies. The API is well-suited for apps, dashboards, or tools that need live or historical crypto market data.
LooksRare LooksRare 5.0 LooksRare Public API provides free REST and WebSocket access to marketplace data and order flow on LooksRare v2. Developers can fetch real-time order books and trades, query collections, tokens, and stats, stream live events, and manage orders (create, cancel, validate) programmatically. The API supports v2-specific endpoints for orders and events, plus compatibility routes for Seaport-based orders, making it straightforward to build bots, dashboards, aggregators, and trading tools on top of the LooksRare protocol. Attribution to LooksRare is requested when using the API.
MEXC MEXC 5.0 MEXC API enables automated crypto trading with access to over 1,200 cryptocurrencies via a REST interface and real-time data using WebSocket for updates on order depth, price changes, transactions and more. It supports multiple SDKs and demo examples (Python, Java, Go, .NET, Node.js, Postman) to help developers integrate smoothly. Security-focused features include API key renewal, trading pair restrictions, and responsive technical support.
Mintscan Mintscan 5.0 The Mintscan API is a suite of REST endpoints (plus some WebSocket support) that gives developers access to detailed on-chain data across Cosmos SDK-based chains and some EVM-compatible networks. It includes utilities like node status, token prices, staking APY, inflation, TVL, historical data (account balances, transaction history, validator info), search endpoints, and transaction builders. API keys are required (with a signup & approval process), and usage is designed to support tools like wallets, explorers, tax-reporting services, dashboards, or other apps needing inter-chain blockchain data.
Nansen Nansen 5.0 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+ entities, daily 500TB+ data processing, and endpoints mirroring dashboard tools like Smart Money, Token God Mode, and Profiler for metadata, statistics, and insights. Access requires Pioneer ($ tier: 1,000 one-time credits) or Professional ($ tier: 1M monthly credits); free users get none. Benefits include reliable, fast integration for trading apps to boost returns and reduce risks.
Orderly Orderly 5.0 Orderly’s Omnichain APIs offer both REST and WebSocket interfaces that enable developers and traders to access and interact with its shared order-book across multiple chains. With REST endpoints, you can manage orders (create, cancel, fetch), check balances, query positions, funding rates, and other market data. The WebSocket feeds provide real-time streams for orderbook updates, trades, tickers, and private user updates (like positions and executions). Authentication is required using an “orderly key” and signature scheme, ensuring secure transactions and user data access.
Solscan Solscan 5.0 Solscan APIs offer the Pro API for developers to integrate Solana blockchain exploration, search, and analytics into projects. It supports data on transactions, tokens, and on-chain activity, with advanced features detailed in the documentation at pro-api.solscan.io. Plans include standard and custom options for varying usage needs, though specific pricing and rate limits require plan selection. Authentication follows standard procedures, emphasizing reliable access to Solana's ecosystem for building dApps and tools.
Triple-A Triple-A 5.0 Triple-A API provides merchants with endpoints for handling crypto and fiat transactions in a compliant and seamless way. It includes a Cryptocurrency Payments API for accepting digital asset payments from customers with settlement in fiat, a Cryptocurrency Payout API that lets businesses prefund in fiat and send crypto to clients or end-users, and a Fiat Payout API for prefunding in either crypto or fiat and making direct fiat transfers. Together, these APIs enable businesses to integrate global crypto payments, payouts, and remittances without exposure to volatility or complex back-end infrastructure.
TzKT API TzKT API 5.0 TzKT API is a comprehensive RESTful API for Tezos blockchain data, offering real-time and historical insights on operations, accounts, contracts, tokens, NFTs, and big maps. It supports 100+ endpoints, WebSocket streams for live updates, and developer tools like SDKs. Free tier available with rate limits; premium plans for higher usage.