🚀 Get Started | Documentation | Official website | Block explorer

We are excited to announce the integration of Sonic Chain into Tatum! Sonic launched its mainnet, marking a significant transformation for users and developers in the cryptocurrency space. Sonic is a new Layer 1 blockchain, designed to be faster and more efficient than its predecessor, Fantom.

Sonic is the highest-performing EVM Layer 1 blockchain, built for next-generation DeFi applications. It combines speed, incentives, and world-class infrastructure, delivering 10,000 TPS with sub-second finality to power Web3 innovations at scale. By adding Sonic RPC Gateway, developers can now seamlessly interact with the Sonic network using Tatum's infrastructure.

We’re excited to announce the launch of our Historical Balance API, enabling you to retrieve wallet balances at a specific point in time across supported blockchains — all in a single API call. Whether you need historical balances for auditing, reporting, or analysis, this endpoint provides accurate, time-based balance data without the hassle of manual calculations.

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API Reference: Get balances by time of addresses

📚 Documentation

Features:

• Retrieve native balances for specific wallet addresses at any point in time.
• Supports Ethereum & Bitcoin, with more chains to come.
• Flexible filtering by block number, timestamp, or exact time.
• Automated handling of future timestamps—returns the latest available balance.

🔍 Get Historical Balances

🚀 Get Started | Documentation | Version 8 Changelog

We’re thrilled to announce the release of Tatum KMS (Key Management System) Version 8, featuring security enhancements through comprehensive updates to all dependency libraries. These updates address potential vulnerabilities and strengthen the system’s resilience to threats.

With improved security and the same reliable functionality you trust, KMS v8 is our most secure version yet. Upgrade today!

🚀 Get Started | Documentation | Official website | Block explorer

We are excited to announce the integration of Ronin Chain.

Ronin is an EVM-based blockchain specifically forged for gaming, launched by Sky Mavis—the creators of Axie Infinity. It has already processed over $4B in NFT volume, proving its ability to handle millions of daily users with near-instant transactions and negligible fees. Originally using Proof of Authority (PoA), Ronin has integrated Delegated Proof of Stake (DPoS) to enhance security and decentralization, making it a battle-tested platform for Web3 gaming and NFT projects.

We’ve released major improvements to Notifications!

Newly Supported Blockchains

We’ve expanded our multi-chain support by adding Arbitrum, Optimism, and Base on Mainnet to Tatum Notifications. You can now set up notifications for these chains via the API and in the Notification Builder on the Tatum Dashboard.

Dashboard: Search by Subscription ID

It’s now easier than ever to find specific notifications in the Dashboard. You can search by Subscription ID, and we’ve also optimized performance so you get faster results.

Notification History: New Retention Policy

We’ve introduced a new retention policy for sent notification events, based on your plan:

• 🥉 Free Plan: retained for 1 Day
• 🥈 PayGo Plan: retained for 7 Days
• 🥇 Business Plan: retained for 30 Days

Important: Our new retention policy will go into effect on February 1st, providing data retention based on your plan.

Need a longer retention period? Contact us, and we'll be happy to help tailor a solution to your needs.

We’ve streamlined our documentation to help you find what you need faster.

Blockchain functionality is now organized by interfaces (e.g., Tatum API, JSON-RPC, Rosetta, gRPC REST). This makes it easy to locate methods and see supported features for every blockchain.

We’ve revamped our documentation to make finding what you need faster and easier.

🌐 Review supported blockchains

We’re excited to announce more currency options in our Virtual Accounts!
You can now create and manage accounts in these new currencies for seamless transactions:

📚 Virtual Accounts Guide

🚀 Get Started | Documentation | Status Page | Block Explorer

We’re excited to announce the launch of Bitcoin Testnet4.

Bitcoin Testnet 4 provides a reliable and risk-free environment for developers, miners, and users to experiment with Bitcoin applications. This new testnet addresses significant limitations of the deprecated Testnet3, including challenges in acquiring testnet coins and issues with network stability. Testnet4 features improved mining activity, more predictable difficulty adjustments, and reduced network abuse, ensuring a seamless testing experience.

Bitcoin Testnet4 Support

• Tatum integration: Integrated with Core API, Dashboard and SDK
• Bitcoin testnet4 endpoint (⭐ Tier 2): https://bitcoin-testnet4.gateway.tatum.io

Transition to Testnet4 and unlock new opportunities to innovate on the Bitcoin network!

As part of our ongoing efforts to deliver improved performance and operational stability, we’re excited to announce an upgrade to Binance Smart Chain (BSC) RPC infrastructure.

⏱️ All nodes will operate exclusively on Erigon since Tuesday, November 26.

Why Erigon?

The migration to Erigon enables us to provide better overall node stability, lower latency, and a more robust experience for your applications. Erigon nodes have already been used for debug methods, and now they will fully replace Geth nodes for all operations. This change allows us to improve service quality. However, some changes in RPC method compatibility may impact certain integrations.

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Deprecated and Unavailable methods:

• eth_feeHistory: Modified structure; Erigon now provides more detailed information.
• txpool_inspect: Not available on Erigon.
• txpool_status: Includes a new parameter baseFee.

We encourage users to review their current usage. If you’re using eth_feeHistory, note that its structure has changed, providing more granular data. Reach out to us for guidance if you experience any issues.

You can now access comprehensive balance data using our enhanced Get Balances endpoint. Previously, our supported endpoints were limited to retrieving Fungible Token Balances and Non-Fungible Token Balances. With this upgrade, the new Get Balances endpoint now also includes native balances, providing a complete view of your wallet's assets—all in a single API call.

No additional parameters are needed. Just make the call with your API key 🔑, specifying the required chain and address parameters, and you'll receive a categorized array of balances, covering fungible tokens, non-fungible tokens, and native balances.

🚀 Try Get Balances Endpoint