Mainnet
Mainnet JSON-RPC
https://base-mainnet.gateway.tatum.io
Free Base RPC (ETH)
Popular
Explore Base, a new Layer 2 blockchain built to enhance scalability and security. Discover its potential for dApps, DeFi, and more.
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RPC Gateway
Connect to Base RPC
Access reliable, enterprise-grade RPC endpoints that power your dApp with ultra-low latency and 99.9% uptime.
Connect to Base Gateway
Make your first RPC call on Base'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 Base features in Tatum Development Platform.
Estimate Gas on Base
Calculate the optimal gas fee for any transaction on Base.
MEV Protection on Base
Protect your transactions from MEV attacks on Base.
Smart Contract Tools on Base
Deploy, create, and interact with smart contracts on Base.
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 Base Data Insights
Complete on-chain data access for Base. 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 Base.
Get Token Exchange Rates
Check exchange rates for tokens and fiat on Base.
1 ETH=? USDCheck Base Malicious Address
Verify if an address on Base is flagged as malicious.
0x1a2b...3c4d
Flagged
NFT API on Base
Query collections, get metadata, check ownership, and track balances on Base.
Get Token Information
Fetch detailed information about a token on Base.
Get Base Wallet Transactions
Retrieve all Base transactions for a wallet, including internal transfers.
Web3 Name Service on Base
Resolve Web3 names to blockchain addresses instantly with a unified API.
Blockchain Notifications
Real-time Base Alerts
Real-time webhooks for Base events. Stop polling the blockchain - get instant alerts for transactions, smart contract events, and wallet activities.
About Base
The Base RPC documentation offers developers a comprehensive guide to interact with the Base Layer 2 network, built on the Optimism stack. Through its detailed API endpoints, developers can query blockchain data, manage accounts, submit transactions, and interact with Ethereum-compatible smart contracts. Base is designed to enhance Ethereum’s scalability by providing faster transaction times and lower fees, while still maintaining security. This documentation supports developers in building and migrating dApps, with examples and best practices for seamless integration.
Tatum Blog & Updates
Learn More About Base
Discover guides, tutorials, and insights about Base development
Tatum RPC: Sub-30ms Latency for Ethereum, Solana, BSC & Base
Tatum delivers sub-30ms RPC latency across regions, 99.9% uptime, and zero-error scale at 10,000 RPS. Build DeFi, gam...
What's new on Base?
May 30, 2025 Added
Data API: Base – On-Chain Data, NFTs, and DeFi
We’re thrilled to announce that Base , the Ethereum Layer 2 chain incubated by Coinbase, is now supported in Tatum’s ...
Nov 12, 2024 Added
Virtual Accounts: Added chains & search filters
We’re excited to announce the addition of three new blockchain networks to our Virtual Accounts: Arbitrum - Chain Cod...
Mar 13, 2024 Added
Base (new RPC Offering)
We're excited to announce the launch of Base . Base is a secure, Ethereum Layer 2 network aimed at Web3 scalability -...
FAQ
Frequently Asked Questions
Everything you need to know about Base RPC endpoints
What is Base RPC?
Base RPC (Remote Procedure Call) is an interface that allows developers to interact with the Base blockchain. It enables you to read data, send transactions, and deploy smart contracts programmatically using standard JSON-RPC methods.
How do I connect to Base 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 Base 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 Base RPC free forever?
Yes! Our free tier Base 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 Base 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.