Here's a complete list of the blockchains including explorers & IDs supported by Zerion API https://developers.zerion.io/reference/listchains.

Mainnets:

Chain	Tokens & Positions	Transactions API	DeFi Protocols	NFT Support	Zerion Wallet Support
Abstract	✅	✅	🔜	✅	✅
Apechain	✅	✅	🔜	✅	✅
Arbitrum	✅	✅	✅	✅	✅
Aurora	✅	✅	🔜	🔜	✅
Avalanche	✅	✅	✅	✅	✅
Base	✅	✅	✅	✅	✅
Berachain	✅	✅	✅	🔜	✅
Binance Smart Chain	✅	✅	✅	✅	✅
Blast	✅	✅	✅	✅	✅
Celo	✅	✅	✅	✅	✅
Degen	✅	✅	🔜	✅	✅
Ethereum	✅	✅	✅	✅	✅
Fantom	✅	✅	✅	✅	✅
Gravity	✅	✅	🔜	🔜	✅
HyperEVM	✅	✅	🔜	🔜	✅
Ink	✅	✅	🔜	✅	✅
Katana	✅	✅	✅	🔜	✅
Lens Chain	✅	✅	🔜	✅	✅
Linea	✅	✅	✅	✅	✅
Mantle	✅	✅	✅	✅	✅
Monad	✅	✅	🔜	✅	✅
Optimism	✅	✅	✅	✅	✅
Plasma	✅	✅	🔜	🔜	✅
Polygon	✅	✅	✅	✅	✅
Polygon zkEVM	✅	✅	✅	✅	✅
Scroll	✅	✅	✅	✅	✅
Solana	✅	✅	🔜	🔜	✅
Somnia	✅	✅	🔜	🔜	✅
Sonic	✅	✅	🔜	🔜	✅
Soneium	✅	✅	✅	✅	✅
Unichain	✅	✅	✅	✅	✅
World	✅	✅	✅	✅	✅
xDai / Gnosis Chain	✅	✅	✅	✅	✅
XDC	✅	✅	🔜	🔜	✅
ZERϴ Network	✅	✅	✅	🔜	✅
zkSync	✅	✅	✅	✅	✅
Zora	✅	✅	🔜	✅	✅
0G	✅	✅	🔜	🔜	✅

Testnets:

Have a chain you'd like to see added? Let us know in the #devs-lounge channel in our Discord!