What is a Polygon RPC Node?
High-performance Ethereum sidechain infrastructure
A Polygon RPC node provides applications with direct access to the Polygon PoS blockchain, enabling fast transaction execution, smart contract interactions, and real-time event monitoring at a fraction of Ethereum mainnet costs. Polygon processes millions of transactions daily while maintaining full EVM compatibility.
Why Polygon dominates scaling
Polygon has established itself as the leading Ethereum sidechain through a combination of ultra-low fees, fast finality, and a massive developer ecosystem. With 2-second blocks and fees often below $0.001, it enables use cases impossible on Ethereum mainnet — from microtransactions to high-frequency GameFi interactions.
Polygon advantages:
- Ultra-low fees — transactions cost fractions of a cent
- Fast finality — 2-second blocks with instant confirmations
- Massive throughput — 7000+ TPS capacity
- Ethereum security — secured by Ethereum through periodic checkpoints
- Rich ecosystem — 7000+ dApps and $1B+ TVL
- Carbon neutral — environmental sustainability commitment
Polygon architecture
Polygon uses a Proof of Stake consensus mechanism with validators staking MATIC (now POL) tokens. The network periodically commits checkpoints to Ethereum mainnet for security, combining the best of sidechain scalability with Ethereum's decentralization.
How it works:
- Validators produce blocks every ~2 seconds on Polygon
- Transactions executed and finalized on the sidechain
- Checkpoint layer periodically commits state to Ethereum L1
- Plasma bridge enables secure asset transfers
- Users enjoy fast, cheap transactions with L1 security guarantees
RPC endpoint types
HTTPS endpoints handle standard blockchain operations — querying state, submitting transactions, calling contracts, and reading historical data.
WebSocket endpoints provide real-time event streaming essential for DEXs, NFT platforms, gaming, and any application requiring instant blockchain updates.