Free Unichain RPC (UNI)

New

Explore Unichain, a high-performance Layer 2 built by Uniswap Labs for DeFi and cross-chain liquidity. Build fast, low-cost dApps using its Optimism-based infrastructure.

99.99%

24/7

FREE

RPC Gateway

Connect to Unichain RPC

Access reliable, enterprise-grade RPC endpoints that power your dApp with ultra-low latency and 99.9% uptime.

Connect to Unichain Gateway

Make your first RPC call on Unichain's Blockchain Gateway.

Mainnet

Explorer

JSON-RPC

https://unichain-mainnet.gateway.tatum.io

Sepolia

Testnet

Explorer

JSON-RPC

https://unichain-sepolia.gateway.tatum.io

* Rate limit enabled - perfect for testing and development. For production, we recommend to Upgrade.

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

Upgrade

Get Free API Key

Increase your limit and access all Unichain features in Tatum Development Platform.

Get API Key How to authenticate

MEV Protection on Unichain

Protect your transactions from MEV attacks on Unichain.

Smart Contract Tools on Unichain

Deploy, create, and interact with smart contracts on Unichain.

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 Unichain Data Insights

Complete on-chain data access for Unichain. Query wallets, tokens, NFTs, and transaction history with lightning-fast APIs - no need to run your own nodes.

Get Wallet Portfolio

Fetch all token balances for a wallet on Unichain.

Get Token Exchange Rates

Check exchange rates for tokens and fiat on Unichain.

1 UNI=? USD

Check Unichain Malicious Address

Verify if an address on Unichain is flagged as malicious.

0x1a2b...3c4d

Flagged

NFT API on Unichain

Query collections, get metadata, check ownership, and track balances on Unichain.

Get Token Information

Fetch detailed information about a token on Unichain.

Get Unichain Wallet Transactions

Retrieve all Unichain transactions for a wallet, including internal transfers.

Blockchain Notifications

Real-time Unichain Alerts

Real-time webhooks for Unichain events. Stop polling the blockchain - get instant alerts for transactions, smart contract events, and wallet activities.

Real-time Alerts for Unichain

Receive instant webhooks for any event on Unichain.

nowNew token transfer detected

200 OK

5s agoIncoming USDT transaction

200 OK

10s agoSmart contract executed

200 OK

Notification Types on Unichain

Discover incoming and outgoing transaction events for Unichain addresses.

About Unichain

Unichain is a Layer 2 blockchain developed by Uniswap Labs using the OP Stack, designed to unify fragmented DeFi ecosystems. It offers fast finality, low fees, and full EVM compatibility, making it ideal for scalable, cross-chain decentralized applications.

Tatum Blog & Updates

Learn More About Unichain

Discover guides, tutorials, and insights about Unichain development

Data API: Unichain – Wallets, Tokens, Transactions

We’re excited to announce that Unichain, the next-gen EVM-compatible Layer 1 designed for modular scalability, is now...

FAQ

Frequently Asked Questions

Everything you need to know about Unichain RPC endpoints

Quick Answer: What is Unichain RPC?

Unichain RPC (Remote Procedure Call) is an interface that allows developers to interact with the Unichain 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 Unichain RPC?

How do I connect to Unichain 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 Unichain 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.

When should I upgrade to Premium?

Consider upgrading to Premium when you're moving to production, need higher rate limits (200 req/sec), require 99.9% uptime SLA, want access to archive nodes for historical data, or need advanced features like batch RPC calls, debug/trace methods, and priority support.

Is Unichain RPC free forever?

Yes! Our free tier Unichain 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 Unichain RPC?

If you exceed 5 requests per minute on the free tier Unichain 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 Unichain RPC endpoints with MetaMask?

Yes! You can configure MetaMask to use our Unichain 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 Unichain.

Are the Unichain RPC endpoints secure?

Yes, all our Unichain 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 Unichain mainnet and testnet RPC endpoints?

Mainnet endpoints connect to the live Unichain 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 Unichain testnet before deploying to mainnet.

How do I troubleshoot Unichain RPC connection errors?

If you're experiencing connection errors with Unichain 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 Unichain 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 Unichain 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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