Supported Chains - Protos

Execution (swap, bridge, buy/sell)

25 EVM networks are wired in for wallet signing, plus Solana for cross-chain routes: Ethereum · Optimism · Cronos · BNB Chain · Gnosis · Unichain · Polygon · Monad · Sonic · World Chain · Metis · Soneium · Mantle · Base · Plasma · Arbitrum · Celo · Avalanche · Ink · Linea · Berachain · Blast · Scroll · HyperEVM · MegaETH · Solana

Feature-specific coverage

Not every feature covers all 26. A few are deliberately scoped narrower because the underlying data source doesn’t cover more yet:

Feature	Coverage
Swap / bridge / buy / sell	All 25 EVM chains + Solana
Address & transaction lookup	10 chains — Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche, zkSync, Linea, Gnosis
Smart-money reads (Nansen)	Ethereum, Base, Solana, Arbitrum, Polygon
Memo payments (B20)	Base, Base Sepolia

If you ask for something outside a feature’s coverage, Protos tells you the chain isn’t supported for that specific capability rather than silently returning nothing or wrong data.