USD Stablecoin Interchange Market

Wiki route

This entry sits under fintech index. Read it against Japan financial regulation for tokens, crypto-assets, and payments for peer / contrast context and Japan stablecoin legal framework: three-layer structure for the broader system / regulatory boundary.

[!info] TL;DR The exchange, clearing, and settlement between USD stablecoins such as USDT, USDC, USDS, and PYUSD itself constitutes a large standalone market.

Market size: stablecoin trading volume of $33 兆 in 2025 年 [Bloomberg/Artemis]. Even if only 10% of that is USD stablecoin interchange, a fee of 0.01% implies annual revenue on the order of $3.3 億/year.

Interchange characteristics: USD stablecoin interchange differs from general crypto exchange. In theory, the tokens are pegged to the US dollar at 1:1 , actual price spreads are extremely small (typically < 0.05%), and the risk is far lower than ordinary crypto trading.

2 implementation paths:

DeFi (Curve, etc.): about 0.01-0.04% for USDT↔USDC; permissionless, but with slippage and gas costs for large trades
CeFi (market makers / exchange APIs): 0.02-0.05%; deep liquidity, but KYB connectivity required

Standalone value: A stablecoin interchange gateway does not need to depend on any specific application, such as AI payments or cross-border B2B remittance, and can serve any industry as independent infrastructure. Its role is similar to a market maker in FX markets. On the Japan side, if it only operates as an information intermediary through a self-custody routing model, it falls under ECISB license. For legal routes that cross currency boundaries, see two-currency triangular arbitrage.

Last refresh (2026-05-26): refreshed dates; added Circle USDC issuer wikilink alongside USDT/USDS/PYUSD peers.