Blockchain Data Indexing APIs

Comprehensive blockchain data indexing infrastructure providing developers with structured, queryable access to on-chain data through RESTful JSON APIs, WebSocket streams, and plain text endpoints. Powers applications since the early days of Bitcoin with reliable, high-availability blockchain data access.

API Suite

Blockchain Data API

• Query block data with full transaction details
• Address balance and transaction history lookups
• Real-time blockchain statistics and metrics
• Network hashrate and difficulty data
• Unspent transaction output (UTXO) queries
• Multi-chain support across major blockchains
• JSON format for easy integration

WebSocket API

• Low-latency streaming connection for real-time events
• New block notifications
• Transaction confirmations
• Address activity monitoring
• Mempool updates
• Custom event subscriptions
• Reliable delivery guarantees

Simple Query API

• Plain text responses for easy parsing
• Current block height
• Network hashrate
• Mining difficulty
• Total Bitcoin in circulation
• Market price data
• Transaction counts
• Lightweight and fast queries

Exchange Rates API

• Real-time exchange rates from major exchanges
• Historical price data and trends
• Multi-currency support (fiat and crypto)
• Volume-weighted average pricing
• Bid/ask spreads from leading venues
• High-frequency updates for current prices

Technical Features

• RESTful API design with comprehensive documentation
• Free access for developers
• High availability and reliability
• Low-latency responses
• Scalable infrastructure
• No authentication required for public data
• Flexible subscription model for WebSocket

Use Cases

• Building blockchain explorers and analytics platforms
• Wallet applications requiring transaction data
• Portfolio tracking and accounting systems
• Real-time payment processing systems
• Trading bots requiring instant transaction data
• Market data and research platforms
• Compliance and auditing tools
• Academic research and analysis
• Security monitoring and alerting systems

Designed for developers, data analysts, and companies building blockchain applications requiring reliable, indexed access to on-chain data across REST, WebSocket, and simple query interfaces.