Supported Chains

Papillae launches on three chains. Not because the technology is limited to three but because depth on three chains is worth more than shallow coverage on fifteen. Every chain we support is one where we have integrated bridges, validated swap liquidity, confirmed off-ramp partner compatibility, and deployed and audited our smart contracts. We will expand. But not before we are excellent on these three.

Ethereum

Ethereum is the primary chain. The deepest USDC liquidity of any blockchain. The most mature DeFi ecosystem. The chain where Circle CCTP, Across Protocol, and Stargate all have their strongest deployments. The chain that most institutional stablecoin flows start on.

Ethereum is also the most expensive chain for gas. For transfers above a few hundred dollars this cost is trivial relative to the value being moved. For very small transfers it matters, which is why Polygon exists as an alternative entry point.

USDC contract on Ethereum: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48

Papillae Router on Ethereum: Deployed on mainnet after audit. Address published here post-deployment.

Supported protocols on Ethereum: Swaps via 1inch, Uniswap V3, and 0x Protocol. Bridging via Circle CCTP to Polygon and Solana, Across Protocol to Polygon, Stargate Finance to Polygon.

Polygon

Polygon is the low-cost entry point. Fractions of a cent per transaction. Two-second block finality. Strong adoption across Southeast Asia, Latin America, and Africa - exactly the regions our corridors serve. If a user is already on Polygon, their transfer starts cheaper and stays cheaper.

Polygon is also where a lot of DeFi activity in emerging markets happens natively. Users in the Philippines who have been onboarded through local crypto apps are often already holding USDC on Polygon. For them, Papillae routes directly without needing to bridge to Ethereum first.

USDC contract on Polygon: 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359

Papillae Router on Polygon: Deployed on mainnet after audit. Address published here post-deployment.

Supported protocols on Polygon: Swaps via 1inch, QuickSwap, and Uniswap V3. Bridging via Circle CCTP to Ethereum and Solana, Across Protocol to Ethereum, Stargate Finance to Ethereum.

Solana

Solana is the speed and cost chain. 400 millisecond block times. Transaction costs measured in fractions of a cent. Jupiter Aggregator - the most efficient swap routing on any blockchain - deployed natively. Circle's CCTP now supports Solana natively, which means USDC moves between Ethereum or Polygon and Solana without wrapped token risk.

Solana has strong adoption in the Philippines specifically - the Coins.ph ecosystem has significant Solana exposure - and growing usage across Southeast Asia broadly. For users already in the Solana ecosystem, Papillae meets them where they are.

USDC contract on Solana: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v

Papillae Router on Solana: Program deployed on mainnet after audit. Program ID published here post-deployment.

Supported protocols on Solana: Swaps via Jupiter Aggregator, Orca, and Raydium. Bridging via Circle CCTP to Ethereum and Polygon, Wormhole to Ethereum and Polygon, Allbridge as final fallback.