Chainstream’s Web3 Data Streaming Service delivers fast, reliable access to on-chain activity across major chains like Ethereum, Solana, BNB Chain, and Polygon.

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Why Use Web3 Data Streaming?

Traditional APIs require constant polling and often miss short-lived events. With Chainstream, you get push-based access to real-time blockchain activity as it happens. Whether you’re building DeFi monitoring tools, automated trading bots, or alerting systems, streaming data provides the foundation for high-performance, event-driven infrastructure.

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What It Delivers

Live Blockchain Events

Subscribe to a wide range of on-chain actions, including token swaps, wallet transfers, liquidity changes, NFT interactions, and smart contract executions. Every event is delivered with structured metadata for easier processing.

Cross-Chain Coverage

Track activity across multiple blockchain ecosystems through a single interface. Data is normalized, timestamped, and deduplicated to support multi-chain analytics and real-time decision-making.

Low-Latency Delivery

Our Kafka-based backend processes millions of messages per second, ensuring minimal lag between the block confirmation and event delivery. Expect sub-100ms push times for high-frequency networks like Solana.

Flexible Consumption Models

Stream data using Kafka, WebSocket, or cloud-forwarding options depending on your setup. Whether you’re building a local processor or feeding data into an analytics pipeline, you have full control over how events are consumed.

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Who It’s For

DEX Aggregators

Track real-time swaps and pool changes to surface better pricing or detect MEV opportunities.

DeFi Protocols

React to on-chain triggers like deposits, liquidations, or oracle updates to drive automated contract behavior.

Security and Risk Tools

Build alerting systems that detect suspicious transfers, wallet activity spikes, or smart contract exploits the moment they happen.

Analytics Platforms

Capture high-volume transaction streams to power dashboards, TVL trackers, and token flow visualizations.