Mainnet
Mainnet JSON-RPC
https://kaia-mainnet.gateway.tatum.io
Free Kaia RPC (KAIA)
Kaia (Klaytn) is a Layer-1 blockchain platform developed by leading Asian messengers Kakao and LINE.
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RPC Gateway
Connect to Kaia RPC
Access reliable, enterprise-grade RPC endpoints that power your dApp with ultra-low latency and 99.9% uptime.
Connect to Kaia Gateway
Make your first RPC call on Kaia's Blockchain Gateway.
Ready for production?
Get 200 requests/second, priority support and advanced blockchain features.
Global Load Balancer
Route to nearest node
Batch RPC Calls
Multiple requests at once
Archive Nodes
Historical blockchain data
Debug & Trace
Advanced debugging
Advanced Analytics
Usage & performance
Bring Your Own RPC
Custom RPC gateways
Get Free API Key
Increase your limit and access all Kaia features in Tatum Development Platform.
Estimate Gas on Kaia
Calculate the optimal gas fee for any transaction on Kaia.
Smart Contract Tools on Kaia
Deploy, create, and interact with smart contracts on Kaia.
Accessible to Everyone
No signup. No paywalls. Just RPC that works. Great ideas come from everywhere.
Our Mission
With love by Tatum
Blockchain Data
Indexed Kaia Data Insights
Complete on-chain data access for Kaia. Query wallets, tokens, NFTs, and transaction history with lightning-fast APIs - no need to run your own nodes.
Blockchain Notifications
Real-time Kaia Alerts
Real-time webhooks for Kaia events. Stop polling the blockchain - get instant alerts for transactions, smart contract events, and wallet activities.
About Kaia
Kaia is a highly optimized, BFT-based public blockchain designed to meet enterprise-grade reliability and performance standards. It offers immediate transaction finality with 1-second block times and processes up to 4,000 transactions per second. Fully compatible with the Ethereum Virtual Machine (EVM), Kaia supports seamless deployment of Solidity smart contracts. Collaborations with platforms like Kakao and LINE provide access to a vast user base, enhancing Web3 adoption across Asia. Developers benefit from comprehensive SDKs and public JSON-RPC endpoints, facilitating efficient integration and interaction with the network. Additionally, Kaia's ecosystem includes a large-scale fund to support sectors like DeFi and GameFi, promoting liquidity and innovation within the blockchain space.
FAQ
Frequently Asked Questions
Everything you need to know about Kaia RPC endpoints
What is Kaia RPC?
Kaia RPC (Remote Procedure Call) is an interface that allows developers to interact with the Kaia blockchain. It enables you to read data, send transactions, and deploy smart contracts programmatically using standard JSON-RPC methods.
How do I connect to Kaia 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 Kaia 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 Kaia RPC free forever?
Yes! Our free tier Kaia 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's the difference between mainnet and testnet?
Mainnet is the live Kaia 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.