Knowledge Base
Guides and explainers about USDT transfer costs, blockchain gas fees, and stablecoin infrastructure.
What Is USDT (Tether)?
Everything you need to know about the world's most used stablecoin — how it works, who issues it, and what backs its value.
Understanding Blockchain Gas Fees
What gas fees are, why they exist, and how they differ across Ethereum, Tron, Solana and other networks.
Which Blockchains Support USDT?
A complete list of blockchains where USDT is officially available, including contract addresses and token standards.
Tron Slashes Fees by 50% After Proposal #104
How the August 2025 governance vote reduced the energy unit price from 210 to 100 sun, cutting USDT transfer costs in half.
How to Choose the Cheapest Blockchain for USDT
A practical comparison of transfer costs, speed, and trade-offs across nine blockchain networks.
Countries Where Tether Has Restrictions
Jurisdictions where Tether's platform is restricted or prohibited, and what alternatives exist.
Tether's Policy for US Residents
Why US persons cannot use Tether's platform directly, and the limited exceptions that apply.