Ethereum RPC Endpoints, API & Dedicated Nodes

Build on Ethereum with OnFinality RPC endpoints, archive-capable access, and dedicated node options for production Web3 workloads. Ethereum is the settlement layer for many wallets, DeFi products, analytics systems, bridges, and backend services, so the RPC layer needs to be tested like production infrastructure rather than a simple URL.

Ethereum RPC use cases

Ethereum RPC endpoints let applications read chain state, estimate gas, submit signed transactions, fetch logs, and inspect transaction receipts. Teams usually compare providers when public endpoints no longer provide enough reliability, visibility, or historical data support.

Common workloads include:

• Wallet balance and transaction views.
• DeFi frontends and backend services that call contracts frequently.
• Indexers and analytics jobs that need logs, receipts, or historical state.
• Debugging workflows that require archive or trace access.

OnFinality Ethereum RPC features

• Network: Ethereum Mainnet
• Protocol: EVM JSON-RPC
• Transport: HTTP and WebSocket
• Advanced access: Archive and trace support available
• Dedicated nodes: Full, archive, and validator node options

What to test first

Start with eth_blockNumber, then test the exact calls your app uses: eth_call, eth_getLogs, eth_sendRawTransaction, receipts, WebSocket subscriptions, and any archive or trace methods your backend depends on.

Shared RPC or dedicated Ethereum nodes?

Shared RPC works well for early integrations, prototypes, and moderate app traffic. Consider dedicated Ethereum nodes when traffic is sustained, workloads are latency-sensitive, or your team needs isolated resources, clearer operational control, or custom node planning.

Next steps:

• Create or manage RPC endpoints
• Compare RPC pricing
• Explore dedicated nodes
• Read the Ethereum RPC API guide

Ethereum RPC and developer resources

Ethereum teams usually need two things from an RPC page: a fast way to test a mainnet request, and enough detail to know whether archive, trace, or dedicated node support fits a production workload.

Best fit: mainnet production workflows for trading systems, analytics, and production apps.

What builders usually check first:

• Read current chain state for apps, dashboards, wallets, and backend services.
• Submit transactions and monitor confirmations from Ethereum-compatible tools.
• Query logs, receipts, and historical state when indexers or analytics pipelines need more than the latest block.

Supported capability notes:

• Authenticated Ethereum RPC/API access for trading systems, analytics, and production apps.
• HTTP plus WebSocket connectivity for app, backend, and integration workflows.
• A dedicated-node path for teams that need stronger isolation or capacity planning.

Decision notes:

• Environment: mainnet. Protocol family: EVM JSON-RPC.
• HTTP plus WebSocket connectivity is listed for supported app and backend workflows.
• Dedicated node options are available when the workload needs isolated resources or more operational control.
• Available regions listed by the network spec include Hong Kong, N.Virginia.

A quick connection check usually starts with eth_blockNumber, then moves into the exact methods your wallet, dashboard, bot, indexer, or backend service needs.

Planning the next step:

• Shared RPC is usually enough for early integration, prototypes, and moderate app traffic.
• Consider dedicated nodes when traffic becomes sustained, workloads are latency-sensitive, or isolation and monitoring become operational requirements.

Next steps:

• Create or manage RPC endpoints
• Review RPC pricing
• Explore dedicated nodes
• Read the Ethereum RPC guide