Starknet RPC Endpoint and API

OnFinality provides managed Starknet RPC endpoints and API access for developers building on Starknet, a permissionless Validity-Rollup (ZK-rollup) for Ethereum. With OnFinality, you can connect to Starknet mainnet without running your own node, using authenticated endpoints designed for production workloads.

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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":"starknet_blockNumber"}' 'https://starknet.api.onfinality.io/public'

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

HTTPs

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

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

Websocket

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

wss://starknet.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

Resources

Additional Info

Build faster with Starknet RPC endpoints

Use OnFinality's Starknet 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 Starknet 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 Starknet blocks, transactions, balances, events, and chain state through HTTP and WebSocket workflows.

Operate Starknet 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 Starknet 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 Starknet state.

Choose the right Starknet RPC setup

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