Overview

GetBlock EVM Data Stream delivers real-time blockchain events such as blocks, logs, token and NFT transfers, receipts, and traces over WebSocket on Ethereum, BNB Smart Chain, Polygon, and Robinhood.

GetBlock EVM Stream delivers blockchain events in real time for wallets, payment services, DeFi applications, and analytics platforms. You select a network, event types, and filters, then receive updates over a persistent WebSocket connection.

This service can also be accessed via WebSocket connection. You can check out the playground for more insight

This reduces the need to continuously poll RPC endpoints, extract events from blocks, and maintain event delivery infrastructure. Filters for addresses, contracts, and other parameters let applications receive the data they need while saving cost.

This version currently focuses on live events; historical exports and backfilling missed events are outside its scope.

Use cases and supported topics

With EVM Data Stream, you can carry out the following operations:

Business use case	What customers receive	Topics
Payments and wallets	ERC-20 transfers, transaction inclusion in a block, and execution results for incoming payment notifications and status updates	erc20Transfers, newMinedTransactions, transactionReceipts
Token approval monitoring	Events granting or changing ERC-20 spending allowances for alerts and risk monitoring	erc20Allowence
DeFi and smart contract events	Contract logs, including events decoded using the customer's ABI, such as swaps, deposits, and loans	logs, decodedLogs
NFT applications and marketplaces	NFT transfers, mints/burns, approvals, and metadata update signals	nftTransfers, nftApprovals, nftMetadataUpdates
Smart wallets / Account Abstraction	Smart account operation events through EntryPoint, including execution and errors	accountAbstractionOperations
Pending transaction monitoring	Transactions observed in the mempool before inclusion in a block	newPendingTransactions
Network analytics and custom indexing	Block headers or full blocks to update applications and process new data	newHeads, newBlocks
Execution and internal activity analysis	Call traces at the block or individual transaction level for analytics and troubleshooting	newBlockTraces, newMinedTransactionsTraces

Mempool and trace availability depends on each network's capabilities and configuration. Inclusion in a block does not itself imply transaction finality; when reorganization handling is enabled, Stream also delivers correction events.

Supported Networks

EVM Data Stream is live on four networks. Each has its own WebSocket endpoint, and every topic is available on every network:

Network	WebSocket endpoint
Ethereum Mainnet	wss://stream.eu-central-1.getblock.io/v1/eth-mainnet/stream
BNB Smart Chain	wss://stream.eu-central-1.getblock.io/v1/bsc-mainnet/stream
Polygon Mainnet	wss://stream.eu-central-1.getblock.io/v1/polygon-mainnet/stream
Robinhood Mainnet	wss://stream.eu-central-1.getblock.io/v1/robinhood-mainnet/stream

Base and Avalanche are on the roadmap, and we will add more EVM-compatible chains over time.

Pricing

EVM Data Stream is charged by usage in Compute Units (CU). Standard pricing costs 10 CU per delivered event. Usage depends on the number of notifications delivered to the customer after filters are applied; for example;

• 1,000 events = 10,000 CU.

• 100,000 events = 1,000,000 CU.

• 1,000,000 events = 10,000,000 CU.

Each notification counts separately. One transaction can generate multiple notifications; delivering the same event to multiple subscriptions is counted separately. Precise filters help customers control data volume and CU consumption.

Successful subscription creation and cancellation cost 10 CU each

Next steps

• Getting Started: connect and receive your first events.

• Handling Chain Reorganizations: keep your state correct when blocks are replaced.

• API Reference: methods, all 15 topics, limits, and errors.

• Stream Home page