Tatum
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Welcome to Tatum 👋
Introduction
Your First App
Tatum's Architecture
Supported Blockchains & Digital Assets
Testnet vs Mainnet
What's New
API Reference
API Reference
Architecture
Terminology
Building Blocks
Private Key Management
Tatum Dashboard
FAQ
Wallets and Virtual Accounts
NFT Express
What is NFT Express
Mint NFTs with Tatum's NFT Express
Use NFT Express with Your Own Smart Contract
Use NFT Express to Mint NFTs on Solana
Use NFT Express to Mint NFTs on Algorand
Private Key Management
Private Key Management
Private Keys and Mnemonic Phrases
Tatum Key Management System (KMS)
Use KMS to Store Private Keys and Sign Transactions on Bitcoin
Use KMS to Store Private Keys and Sign Transactions on Solana
Gas Pump
Gas Pump - a Dedicated Gas Fees Wallet
Pay Gas Fees with Tatum Gas Pump
Guides
Blockchain
Virtual accounts
Tutorials
How to use Tatum and MetaMask
How to pay fees for token transfers from another address
How to build a custodial wallet
How to build a non-custodial wallet
How to build a crypto exchange
How to create a peer-to-peer NFT marketplace like OpenSea
How to create a peer-to-peer NFT auction
How to migrate to Tatum’s updated NFT marketplace and auction features
Error Codes
polygon.sc.invalid
sc.operation.failed
subscription.invalid
tron.account.not.found
Deprecated Features
Support for EOSIO, Lisk, Neo, Qtum, and Terra (LUNA)
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Tatum's Architecture
Now that we've made our first app, it's time to dive deeper into how Tatum works.
Tatum is a combination of blockchain infrastructure and advanced developer tools. Tatum's architecture consists of three main parts.
  • Blockchain Infrastructure
  • Tatum Platform (Cloud)
  • Developer Libraries and Tools
Please have a look at the picture below. We'll walk you through the architecture and all of Tatum's layers to help you develop blockchain apps much more quickly and easily. Let's start from the bottom.

Blockchain Infrastructure

To build and run blockchain apps, you need access to the blockchain's infrastructure. In other words, If you want to read data from the Ethereum blockchain or submit a new transaction, you definitely need access to the Ethereum node. Now you can install your own node, but you'll soon find out that it's very difficult and expensive to manage. So to make things easier, we run all nodes for you. You don't need to install anything!

Tatum Platform

The Tatum platform connects blockchain infrastructure with enterprise features. We run both the platform and the blockchain infrastructure for you. To get access to the platform, you need to register and get an API key. You'll get unlimited development and production API keys.
Virtual Accounts Blockchains like Bitcoin and Ethereum are not exactly scalable. Bitcoin can send around 7 transactions per second (tps), and Ethereum can do about 15 tps globally. But what if you need to scale past the blockchain's limitations? That's where virtual accounts come in. They allow you to perform instant, feeless transactions separately from the blockchain, and periodically synchronize with it. It ensures minimal transaction fees and limitless scalability, even on older blockchains.
Virtual accounts also allow you to work with fiat and virtual currencies and have a comprehensive suite of advanced developer tools built-in and ready.
Metadata Layer This part of Tatum is quite interesting. It's very important, yet you'll most likely never work with it directly. The metadata layer stores or enhances information that cannot be stored in a blockchain. It runs on autopilot, and you don't need to do anything.
The metadata layer in action
Imagine you're developing a crypto payment gateway. One of the features you would like to introduce to your users is a payment note. However, in most cases, you cannot save a payment note into a blockchain. That's where the metadata layer steps in and saves it for you. All you have to do is to include a payment note field when sending a payment using Tatum.
Compliance Engine
The compliance engine helps you in four areas:
  • Global regulations
  • Local regulations
  • Accounting standards
  • Freezing digital assets
Again, everything is running on autopilot and you don't have to do anything. You always have the ability to override the compliance engine if necessary.
Abstraction Layer This layer unifies access for developers to all blockchains and platform features like virtual accounts, off-chain, etc. Abstraction is the key layer that simplifies everything and enables developers to build blockchain apps so quickly and without any blockchain expertise.
API Security Your access to the API is secured with an SSL certificate and API key. To learn more about security, please go to the security section.
Data location
Tatum stores data in the European Union and the United States. Data associated with an EU API key are stored in the EU, data associated with a US API key are stored in the US.
As a result, API keys are region-sensitive:
  • If you have a US API key, you need to use the US URL api-us-west1.tatum.io.
  • If you have an EU API key, you need to use the EU URL api-eu1.tatum.io.

Developer Libraries and Tools

You can access the Tatum platform via our SDKs or REST API. You can find all libraries and tools on our GitHub, and all available API calls in our API documentation.

Pricing Plans

Tatum offers the following pricing plans:
  • Free
  • Start
  • Basic
  • Enterprise
They differ in pricing, number of API calls, and request per second (rq/s).
For a full breakdown of our plans and the number of credits per month for each plan, visit our pricing page.

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Supported Blockchains & Digital Assets
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Outline
Blockchain Infrastructure
Tatum Platform
Developer Libraries and Tools
Pricing Plans