Testnet pride: https://sui-rpc-mainnet.testnet-pride.com/

Nodeinfra: https://sui-mainnet.nodeinfra.com/

Chainbase: https://mainnet-rpc.sui.chainbase.online/

Cosmostation: Canada- https://sui-mainnet-ca-1.cosmostation.io/ https://sui-mainnet-ca-2.cosmostation.io/ EU- https://sui-mainnet-eu-1.cosmostation.io/ https://sui-mainnet-eu-2.cosmostation.io/ https://sui-mainnet-eu-3.cosmostation.io/ https://sui-mainnet-eu-4.cosmostation.io/ US- https://sui-mainnet-us-1.cosmostation.io/ https://sui-mainnet-us-2.cosmostation.io/

BlockVision: https://sui-mainnet-endpoint.blockvision.org/

Staketab: https://rpc-mainnet.suiscan.xyz/

Allnodes: https://sui.publicnode.com/

BlockEden: https://sui-mainnet.blockeden.xyz/

DSRV: https://sui-mainnet-rpc.allthatnode.com/ https://sui-mainnet-rpc-germany.allthatnode.com/ https://sui-mainnet-rpc-korea.allthatnode.com/

Bartestnet: https://sui-mainnet-rpc.bartestnet.com/

Chainode Tech: https://sui1mainnet-rpc.chainode.tech/

Triton One: https://mainnet.sui.rpcpool.com/

Suiet:https://mainnet.suiet.app/

Yes, the primary public RPC endpoint for Sui Mainnet is:

https://fullnode.mainnet.sui.io:443

This endpoint is maintained by the Sui Association and is suitable for production applications. It supports all standard Sui RPC methods for querying blockchain data, submitting transactions, and interacting with smart contracts.

For redundancy and improved reliability, you can also use endpoints from third-party providers such as:

• Chainstack: https://suiscan.io/mainnet
• QuickNode: https://your-sui-mainnet-endpoint.qnk.sk
• Ankr: https://rpc.ankr.com/sui

These services often require an API key but offer enhanced performance, rate limits, and monitoring.

Always verify the endpoint's status and ensure your application handles network errors and retries appropriately.