Payment rails — full comparison
Side-by-side on the seven rails most relevant to Polygon's Open Money Stack positioning. Stablecoin supply is the unit of competition.
Stablecoin supply by rail
The honest comparison. Where the dollars actually sit.
Polygon Open Money Stack
SpotlightPolygon's API-driven money-movement stack — PoS for liquidity depth, AggLayer for cross-chain unification, CDK for issuer chains, zkEVM for verifiable settlement.
Circle (USDC + CCTP)
The issuer-led narrative. Owns the regulated dollar and the cross-chain transport. Competes upstream — Polygon needs to be Circle's best home, not its replacement.
Tron
The pragmatic incumbent. Dominates USDT settlement in emerging markets via low fees and remittance corridors. Polygon's biggest competitor for global stablecoin payments by volume.
BSC
Quietly persistent. Largest USDT chain after Tron and the default rail for parts of APAC retail. Often missed in US-centric competitor maps.
Solana Pay
Visa-aligned payments narrative. High-throughput, low-fee chain with a growing fintech and merchant integration story — the platform competitor to convert.
Base / Coinbase Payments
Coinbase's distribution into onchain payments. Strong consumer wallet funnel; ICP overlap on US-fintech buyers but weak outside US/EU.
TON
Telegram-distributed payments. Consumer-first, in-app, growing fast. Different ICP than Polygon today — but the playbook for embedded crypto money movement to watch.
| Rail | Stable supply | 7d Δ | 30d Δ | Constituent chains |
|---|---|---|---|---|
Polygon Open Money Stack Polygon's API-driven money-movement stack — PoS for liquidity depth, AggLayer for cross-chain unification, CDK for issuer chains, zkEVM for verifiable settlement. | $3.57B | -4.50% | +6.72% | Polygon · Polygon zkEVM |
Circle (USDC + CCTP) The issuer-led narrative. Owns the regulated dollar and the cross-chain transport. Competes upstream — Polygon needs to be Circle's best home, not its replacement. | $152.88B | -1.06% | -4.31% | Ethereum · Avalanche · Arbitrum |
Tron The pragmatic incumbent. Dominates USDT settlement in emerging markets via low fees and remittance corridors. Polygon's biggest competitor for global stablecoin payments by volume. | $89.75B | +0.40% | +0.80% | Tron |
BSC Quietly persistent. Largest USDT chain after Tron and the default rail for parts of APAC retail. Often missed in US-centric competitor maps. | $17.45B | -0.45% | -1.91% | BSC |
Solana Pay Visa-aligned payments narrative. High-throughput, low-fee chain with a growing fintech and merchant integration story — the platform competitor to convert. | $16.30B | -4.25% | +4.92% | Solana |
Base / Coinbase Payments Coinbase's distribution into onchain payments. Strong consumer wallet funnel; ICP overlap on US-fintech buyers but weak outside US/EU. | $4.87B | +2.01% | +0.31% | Base |
TON Telegram-distributed payments. Consumer-first, in-app, growing fast. Different ICP than Polygon today — but the playbook for embedded crypto money movement to watch. | $790.52M | +0.00% | +1.32% | TON |
Stablecoin supply is the deliberate unit of comparison — not TVL, not market cap. Supply tracks the dollar liquidity actually deployed on each rail and the closest proxy for where payment activity will route. It under-counts rails that route stablecoins through bridges (Circle's aggregate supply via CCTP is split across Ethereum, Arbitrum, Avalanche, etc.) and over-counts rails where stables sit idle in DeFi rather than moving. Treat absolute rank as directional; treat 7d/30d deltas as the real signal.