Mainnet
Mainnet JSON-RPC
https://sui-mainnet.gateway.tatum.io
Free Sui RPC (SUI)
Popular
SUI is a high-performance, Move-based Layer 1 blockchain designed for parallel transaction execution and built to deliver low-latency, high-throughput applications at scale.
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RPC Gateway
Connect to Sui RPC
Access reliable, enterprise-grade RPC endpoints that power your dApp with ultra-low latency and 99.9% uptime.
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Complete on-chain data access for Sui. Query wallets, tokens, NFTs, and transaction history with lightning-fast APIs - no need to run your own nodes.
About Sui
SUI is a permissionless Layer 1 blockchain developed by Mysten Labs, built to support fast, secure, and scalable decentralized applications. Utilizing the innovative Move programming language, SUI introduces a unique object-centric data model and parallel transaction execution, enabling low latency and high throughput without sacrificing security. Its architecture empowers developers to build dynamic, asset-rich applications, while the chain’s scalability and efficiency make it ideal for next-generation web3 use cases.
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FAQ
Frequently Asked Questions
Everything you need to know about Sui RPC endpoints
Quick Answer: What is Sui RPC?
Sui RPC (Remote Procedure Call) is an interface that allows developers to interact with the Sui blockchain. It enables you to read data, send transactions, and deploy smart contracts programmatically using standard JSON-RPC methods. Our free tier provides 5 requests per minute with no registration required, perfect for testing and development. For production applications, upgrade to Tatum Premium for 200 requests per second and enterprise-grade reliability.
What is Sui RPC?
Sui RPC (Remote Procedure Call) is an interface that allows developers to interact with the Sui blockchain. It enables you to read data, send transactions, and deploy smart contracts programmatically using standard JSON-RPC methods.
How do I connect to Sui using these RPC endpoints?
Simply copy the RPC endpoint URL from above and configure it in your Web3 library (ethers.js, web3.js), wallet (MetaMask, Trust Wallet), or development tool (Hardhat, Truffle). The endpoint works immediately with no registration required for the free tier.
What are the rate limits for free Sui RPC?
Free tier RPC endpoints are limited to 5 requests per minute. This is perfect for testing and development. For production applications, we recommend upgrading to Tatum Premium which offers 200 requests per second with no daily limits.
Is Sui RPC free forever?
Yes! Our free tier Sui RPC endpoints are free forever with 5 requests per minute. This tier is perfect for learning, testing, and small projects. There are no hidden fees or time limits on the free tier.
What happens if I exceed the free tier rate limit for Sui RPC?
If you exceed 5 requests per minute on the free tier Sui RPC, you'll receive an HTTP 429 (Too Many Requests) error. This is a standard rate limiting response. To avoid this, you can upgrade to Tatum Premium which offers 200 requests per second with no daily limits, perfect for production applications.
Can I use these Sui RPC endpoints with MetaMask?
Yes! You can configure MetaMask to use our Sui RPC endpoints. Simply copy the endpoint URL from above, go to MetaMask Settings > Networks > Add Network (or edit existing), and paste the RPC URL. This works with all EVM-compatible blockchains including Sui.
Are the Sui RPC endpoints secure?
Yes, all our Sui RPC endpoints use HTTPS encryption and follow enterprise-grade security practices. They're powered by Tatum's infrastructure which maintains 99.99% uptime and is trusted by thousands of developers worldwide.
What's the difference between Sui mainnet and testnet RPC endpoints?
Mainnet endpoints connect to the live Sui blockchain where real transactions occur with real assets. Testnet endpoints connect to a separate testing network with free test tokens. Always test your dApp on Sui testnet before deploying to mainnet.
How do I troubleshoot Sui RPC connection errors?
If you're experiencing connection errors with Sui RPC, check: 1) The RPC endpoint URL is correct, 2) You're not exceeding rate limits (5 req/min for free tier), 3) Your network allows HTTPS connections, 4) The Sui network is currently operational. For persistent issues, check our status page or contact support.
What's the difference between mainnet and testnet?
Mainnet is the live Sui blockchain where real transactions occur with real assets. Testnet is a separate network used for testing and development with free test tokens. Always test your dApp on testnet before deploying to mainnet.
Can I use these endpoints in production?
Free tier endpoints can be used in production for low-traffic applications (under 5 req/min). For production apps with higher traffic, we strongly recommend Tatum Premium for guaranteed uptime, faster rate limits, and enterprise SLA.
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