Overview

How Stable’s five USDT-specific features work together to make stablecoin payment flows practical at scale.

Stable’s USDT-specific features aren’t a menu of independent options. They compose. Each one removes a specific friction that shows up when stablecoin payments move from demos to production. This page explains why the five features exist together.

The friction stack

Most stablecoin payment architecture on general-purpose chains runs into the same stack of problems:

1. Users have to hold a second token (ETH, SOL) to pay gas for a transaction that moves stablecoins. An onboarding step that bleeds conversion.
2. Even with a second token, the user has to cover gas. This breaks the “send a dollar for a dollar” mental model that merchants and payment apps need.
3. Transaction costs fluctuate with network activity. Payroll, treasury ops, and batch settlements can’t plan cost or inclusion.
4. Per-transaction limits cap throughput. High-volume USDT flows hit chain-wide contention and degrade alongside unrelated activity.
5. Every transaction is publicly observable. Supplier payments, salary runs, and treasury moves leak commercially sensitive data.

How the features compose

Stable addresses each friction with a dedicated mechanism:

Friction	Mechanism	Page
Separate gas token	USDT0 is the native gas token	USDT as gas
User pays gas at all	Governance-authorized waivers cover gas	Gas waiver
Cost and inclusion variance	Reserved block capacity for enrolled partners	Guaranteed blockspace
Throughput ceiling	Parallelized USDT0 transfer batching	USDT transfer aggregator
Public amount visibility	Selective privacy via ZK cryptography	Confidential transfer

Any one of these helps. Taken together, they make Stable a chain where a payments team can model cost, latency, and privacy the same way they would on a traditional card network, with the settlement finality of a blockchain.

For the full set of Stable’s differences from a general-purpose EVM chain, see Ethereum comparison. For a worked example of USDT moving end-to-end through these features, see Flow of funds.

Next recommended

USDT as gas

Understand the asset that replaces ETH for gas and payment at once.

Flow of funds

Trace USDT from on-ramp through on-chain transfer to off-ramp settlement.

Bridging to Stable

See how USDT0 moves onto Stable from other chains.