Sui RPC Endpoints, API & Provider Access

Sui delivers the benefits of Web3 with the ease of Web2

Sui Mainnet infrastructure for app and backend teams, with managed RPC access and managed access where supported.

Sui delivers the benefits of Web3 with the ease of Web2

Create RPC Endpoint

Sui Mainnet RPC Endpoint

The below example uses the public API endpoint*. This endpoint is only suitable for testing. To avoid rate limiting and service interruption, sign up now to get your own API key.

Example CURL

curl -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","id":0,"method":"sui_getTotalTransactionBlocks"}' 'https://sui.api.onfinality.io/public'

curl -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","id":0,"method":"sui_getTotalTransactionBlocks"}' 'https://sui.api.onfinality.io/public'

HTTPs

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

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

* The public endpoint is rate limited

RPC API Service

RPC Regions

N.VirginiaHong Kong

PRICING

Calculate Your Costs

Only pay for what you need.

Monthly Response Units

Million Standard Requests

0100M200M300M400M

Total Cost

$49/ month

Recommended Plan: GROWTH

Continue with this plan

Sui Mainnet RPC Endpoints

Sui is a Layer 1 blockchain designed for fast, secure, and scalable digital asset ownership. Its object-centric data model enables parallel transaction execution, making it ideal for high-throughput applications like DeFi, gaming, and social platforms. Developers building on Sui need reliable RPC endpoints to interact with the network—reading on-chain data, submitting transactions, and powering backend services.

OnFinality provides managed Sui Mainnet RPC endpoints, giving you authenticated API access without the overhead of running your own full node. Whether you're building a wallet, a dApp, or an analytics tool, OnFinality's infrastructure is designed for production workloads.

Why Use OnFinality for Sui RPC?

Managed API endpoints: No need to sync or maintain a Sui full node. Get started with a few clicks.
Observability: Monitor request volume, error rates, and usage limits through the OnFinality dashboard.
Scalability: Start with a shared API plan and upgrade to higher capacity as your project grows.
Global regions: Endpoints available in N. Virginia and Hong Kong for low-latency access.

Sui Mainnet RPC Endpoint Details

Network: Sui Mainnet
Protocol: JSON-RPC over HTTP
Transport: HTTP
Authentication: API key required (free tier available)
Common use cases: dApps, wallets, DeFi products, analytics tools, games, bots, and backend services

How to Connect

Create or sign in to your OnFinality account.
Select Sui Mainnet from the supported networks list.
Create an API endpoint and copy your unique URL.
Use the endpoint in your application to make RPC calls (e.g., suix_getAllBalances, suix_getOwnedObjects).
Monitor usage and adjust your plan as needed.

Production-Ready Infrastructure

OnFinality's Sui RPC endpoints are suitable for production applications. With authenticated access, you get stable rate limits, request analytics, and a clear path to higher-capacity plans. For teams with demanding workloads, dedicated node options are available.

Sui RPC Methods

Sui exposes a rich set of JSON-RPC methods organized into categories:

Coin Query API: suix_getAllBalances, suix_getCoins, suix_getBalance
Extended API: suix_getOwnedObjects, suix_getDynamicFields, suix_queryTransactionBlocks
Governance Read API: suix_getValidators, suix_getStakes
Move Utils: suix_getNormalizedMoveModules, suix_getMoveFunctionArgTypes

Refer to the Sui API Reference for full documentation.

Get Started

Ready to build on Sui? OnFinality offers a free tier to get you started. Sign up today and connect to Sui Mainnet in minutes.

Sui Mainnet RPC and developer resources

Sui builders need infrastructure for Move-based apps, wallets, games, and backend services, so the page should clarify RPC access and production planning without generic EVM language.

Best fit: mainnet production workflows for Web3 products, integrations, and app backends.

What builders usually check first:

Connect app, wallet, dashboard, or backend services to network data.
Validate the methods your product depends on before moving more traffic.
Plan an upgrade path if request volume, monitoring, or isolation requirements increase.

Supported capability notes:

Authenticated Sui Mainnet RPC/API access for Web3 products, integrations, and app backends.
Stable API access for app, backend, and integration workflows.

Decision notes:

Environment: mainnet. Protocol family: Blockchain RPC.
Stable API access is listed for supported app and backend workflows.
Available regions listed by the network spec include N.Virginia, Hong Kong.
Confirm the exact methods, limits, and production requirements against your app before moving sustained traffic.

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 a practical starting point for integration, prototypes, dashboards, and many app backends.
If your product becomes traffic-heavy or operationally sensitive, review the available upgrade path before relying on a single access pattern.

Next steps: