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Sonic RPC Endpoint and API

Sonic is the highest-performing EVM L1

Sonic is a high-performance EVM Layer 1 with sub-second finality and high throughput for next-generation dApps. Its EVM compatibility supports DeFi, wallets, games, and backend services while fast confirmation keeps interactive apps responsive.

Chain ID146

CurrencyS

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Public endpoint rate limit: 5 req/sec

Quick Start

curl -H 'Content-Type: application/json' -d '{"id":1,"jsonrpc":"2.0","method":"eth_blockNumber"}' 'https://sonic.api.onfinality.io/public'

curl -H 'Content-Type: application/json' -d '{"id":1,"jsonrpc":"2.0","method":"eth_blockNumber"}' 'https://sonic.api.onfinality.io/public'

HTTPs

https://sonic.api.onfinality.io/public

https://sonic.api.onfinality.io/public

Websocket

wss://sonic.api.onfinality.io/public-ws

wss://sonic.api.onfinality.io/public-ws

Go to Growth Plan

High Performance
Powerful RPC Analytics
Up to 500 rps
No daily response limit
Priority Support
Decentralized Servers

Get Started

Sonic endpoint details

Item	Value
Network	Sonic Mainnet
Chain ID	146
Native token	S
Protocol	EVM JSON-RPC
HTTPS endpoint	`https://sonic.api.onfinality.io/public`
WebSocket endpoint	`wss://sonic.api.onfinality.io/public-ws`
Common methods	`eth_blockNumber`, `eth_call`, `eth_getLogs`, `eth_sendRawTransaction`
Best fit	DeFi, wallets, games, NFTs, analytics, and backends

OnFinality Sonic RPC features

Transport: HTTPS and WebSocket
Advanced access: Archive and trace methods available
Observability: Request analytics and usage visibility
Scaling path: Shared access for integration and higher capacity for production workloads

Resources

Additional Info

Build faster with Sonic RPC endpoints

Use OnFinality's Sonic RPC APIs to connect wallets, dApps, dashboards, bots, and backend services without operating your own node from day one.

Public endpoint testing

Start with the Sonic public RPC endpoint for lightweight checks, prototypes, and quick integration tests.

Authenticated API access

Move production traffic to authenticated endpoints when you need clearer limits, analytics, and operational visibility.

Standard RPC methods

Query Sonic blocks, transactions, balances, events, and chain state through HTTP and WebSocket workflows.

Operate Sonic infrastructure with more control

Production teams need more than an endpoint URL. They need observability, predictable capacity, and a path from shared RPC access to isolated infrastructure.

Request visibility

Track usage patterns and response activity so your team can understand traffic growth before it becomes an incident.

Dedicated node path

Use dedicated Sonic nodes when your workload needs isolated resources, custom operations, or stronger capacity planning.

Archive and historical data

Plan for archive access when analytics, audits, indexers, or advanced app features need older Sonic state.

Choose the right Sonic RPC setup

Different Sonic products need different infrastructure. OnFinality gives teams a practical path from public RPC testing to production-grade API and node operations.