Starknet RPC Endpoint

Fast, flat-rate Starknet RPC node provider — free tier, no KYC, HTTP & WebSocket.

Starknet is a validity (ZK) rollup on Ethereum that uses STARK proofs to verify state transitions. Contracts are written in Cairo rather than Solidity, and it is non-EVM at the execution layer.

Network: Starknet

Type: Non-EVM

Slug: starknet

Native token: STRK (Starknet Token)

Block time: Variable block production; not a fixed EVM-style interval

Finality: Soft confirmation on Starknet within seconds to minutes; hard finality once the STARK proof is verified on Ethereum L1

Mainnet: 2021 (mainnet); STRK token February 2024

Category: Layer 2 (STARK validity rollup on Ethereum)

About Starknet

Starknet launched its mainnet in 2021 and is built by StarkWare. It is a validity rollup: every state update is accompanied by a STARK proof verified on Ethereum, giving cryptographic correctness once proofs settle to L1.

Smart contracts are written in Cairo and run on the Starknet OS, not the EVM. The native STRK token launched in February 2024 and is used for fees and staking. Tooling includes Starkli, scarb, and starknet.js.

Common Use Cases on Starknet

Scalable DeFi
Account abstraction wallets
Gaming
Provable computation
Low-cost transactions

Starknet Ecosystem

Starknet hosts native DeFi and infrastructure projects such as Ekubo, Nostra, and the Argent and Braavos smart-account wallets.

HTTP Endpoint

https://rpc.swiftnodes.io/rpc/starknet?key=YOUR_API_KEY

WebSocket Endpoint

wss://rpc.swiftnodes.io/ws/starknet?key=YOUR_API_KEY

Quick Start: Connect to Starknet

cURL

curl -X POST https://rpc.swiftnodes.io/rpc/starknet?key=YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"getHealth","id":1}'

Note: Starknet uses its own RPC methods. Refer to the official Starknet documentation for available methods.

Bridging to Starknet

The StarkGate canonical bridge connects Ethereum and Starknet; third-party bridges including Orbiter and rhino.fi also support transfers.

Features of SwiftNodes for Starknet

Multiple load-balanced upstream nodes for high availability
Health-checked every 60 seconds with automatic failover
Free tier available — no credit card or KYC required
Flat-rate monthly pricing with no per-request fees
HTTP and WebSocket support
One API key works across all 75+ supported chains, including Starknet

Rate Limits

Plan	Price	HTTP req/s	WS msg/s
Free	$0/mo	2	1
Starter	$49/mo	50	25
Growth	$89/mo	150	75
Scale	$149/mo	300	150
Pro	$249/mo	500	250

Frequently Asked Questions: Starknet

Does Starknet have an EVM chain ID?

No. Starknet is non-EVM and does not use an EVM chain ID. It identifies networks with its own chain identifiers (for example SN_MAIN for mainnet).

How do I query Starknet?

Starknet exposes a dedicated Starknet JSON-RPC API (distinct from Ethereum JSON-RPC) accessed via libraries like starknet.js and starknet.py; it does not respond to standard Ethereum eth_ methods.

What language are Starknet contracts written in?

Starknet contracts are written in Cairo and run on the Starknet OS rather than the EVM.

Ready to start building on Starknet? Connect your wallet and get a free API key in 30 seconds. No email or KYC required.