Free Cryptocurrency & Web3 APIs

Zero authentication required, comprehensive crypto market datasets

Real-time crypto market cap, exchange volume, and live pricing feeds

Industry-leading cryptocurrency index and market valuations

100% free crypto price ticker and decentralized token analytics

Free cryptocurrency market data, coin list and global trading volume

Comprehensive crypto market streaming and historical pricing analytics

Official Binance spot, futures, and real-time market depth endpoints

US largest regulated crypto exchange developer API endpoints

Ethereum blockchain explorer API for transactions, smart contract ABIs, gas trackers, and token balances.

Complete Web3 development suite and high-throughput RPC node infrastructure

Enterprise Web3 data APIs for multichain wallet balances, NFT indexing, and DeFi token prices.

Open DeFi TVL protocol data and yield analytics, 100% free

NFT marketplace listings, bids, collection stats, and sales events

Decentralized indexing protocol for querying blockchain networks via GraphQL

High-performance Web3 infrastructure and JSON-RPC API for Ethereum, Polygon, Optimism, and IPFS.

Multi-chain node infrastructure and real-time Web3 RPC streaming

Cardano blockchain developer API and token telemetry

Live coin rankings, interactive price charts, and exchange metrics

Bitcoin price index (BPI) and crypto financial news ticker

Spot and margin cryptocurrency trading market endpoints

A public, keyless REST API for live crypto swaps: list supported coins, get quotes, create swap orders and check order status. It returns JSON and can be called directly from browsers or servers.

Provides Nakamoto Notes' Bitcoin Barometer — a composite heat score (0–100) and zone that describes Bitcoin's market-cycle position. Offers a current JSON endpoint and a daily-history CSV, plus an embeddable widget and several indicator fields.

BitcoinYield provides a normalized, live feed of crypto yields across DeFi and CeFi, ranked by rate and risk. It offers public endpoints for summary data and a bearer-authenticated feed for the full, filterable offers list.

The CryptoLabel API allows users to resolve blockchain addresses, identify their types, and retrieve associated labels and metadata. It supports several blockchains including Ethereum, Bitcoin, and Tron, providing detailed information on entities and labels related to the queried address.

A machine-readable dataset of published crypto licence and application fees compiled from regulator pages. Provides downloadable JSON and CSV files with source URLs, figures, currencies and retrieval dates.

Sharpe provides real-time crypto derivatives and market data through a REST API, MCP server, and CLI. It publishes funding rates, futures analytics, arbitrage signals, token scanning, narrative tracking, and other trading intelligence.

Cloud, GPU and LLM token prices for agents, free discovery tools and paid per-call data

Chainpoint is a global network for anchoring data to the Bitcoin blockchain

Cross-frontend DEX attribution and execution quality data across Ethereum and L2s

Multi-blockchain data aggregator platform

RPC endpoints for 150+ blockchain networks, including Ethereum, Solana, Polkadot and Hyperliquid

Blockchain-as-a-service solution that provides high-quality connection via API

Blockchain-based blogging and social media website

Multi-chain blockchain RPC nodes (Ethereum, Solana and 75+ networks)

Solana on-chain agent trust scoring via MCP; 4 free tools to score, resolve and verify AI agent wallets

Provide simple and reliable API access to Ethereum blockchain