Supported Chains

The evm & non-evm blockchains supported on OpenOcean

Our normal Swap API, Gasless API, DCA API, and Limit Order API are available on the following chains.

Swap API supported chains

Swap API is supported on all the chains listed below. Gasless API is available only on specific chains, as indicated in the checklist.

EVM Chains:

EVM Chains	Chain Code	Chain ID	Native Token Address	Swap API	Gasless API
Ethereum	eth	1	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
BNB Chain	bsc	56	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Base	base	8453	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Polygon	polygon	137	0x0000000000000000000000000000000000001010
Arbitrum	arbitrum	42161	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Linea	linea	59144	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
HyperEVM	hyperevm	999	0x0000000000000000000000000000000000000000
Avalanche	avax	43114	0x0000000000000000000000000000000000000000
Optimism	optimism	10	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Sonic	sonic	146	0x0000000000000000000000000000000000000000
UniChain	uni	130	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Berachain	bera	80094	0x0000000000000000000000000000000000000000
Sei	sei	1329	0x0000000000000000000000000000000000000000
Plasma	plasma	9745	0x0000000000000000000000000000000000000000
zkSync Era	zksync	324	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Aurora	aurora	1313161554	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Cronos	cronos	25	0x0000000000000000000000000000000000000000
Harmony	harmony	1666600000	0x0000000000000000000000000000000000000000
Kava	kava	2222	0x0000000000000000000000000000000000000000
Metis	metis	1088	0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000
Celo	celo	42220	0x471EcE3750Da237f93B8E339c536989b8978a438
Telos	telos	40	0x0000000000000000000000000000000000000000
Polygon zkEVM	polygon_zkevm	1101	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Gnosis	xdai	100	0x0000000000000000000000000000000000000000
opBNB	opbnb	204	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Mantle	mantle	5000	0x0000000000000000000000000000000000000000
Manta	manta	169	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Scroll	scroll	534352	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Blast	blast	81457	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Mode	mode	34443	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Rootstock	rootstock	30	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Gravity	gravity	1625	0x0000000000000000000000000000000000000000
Apechain	ape	33139	0x0000000000000000000000000000000000000000
Monad Testnet	monad	10143	0x0000000000000000000000000000000000000000
Flare	flare	14	0x0000000000000000000000000000000000000000
Swell	swell	1923	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Plume	plume	98866	0x0000000000000000000000000000000000000000
TAC	tac	239	0x0000000000000000000000000000000000000000
Moonriver	moonriver	1285	0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
Fantom	fantom	250	0x0000000000000000000000000000000000000000

Non-EVM Chain

Non-EVM chains are available only to whitelisted users with an authorized API key. To get whitelisted, please register to submit the form. For custom chain support, reach out us via Discord or Telegram.

Chain Name	Chain Code	Native Token Address
Solana	solana	So11111111111111111111111111111111111111112
Ontology	ont
Near	near
Starknet	starknet	0x049d36570d4e46f48e99674bd3fcc84644ddd6b96f7c741b1562b82f9e004dc7
Sui	sui

DCA API supported chains

Chain Name	Chain ID
Ethereum	1
BNB Chain	56
Arbitrum	42161
Berachain	80094
Base	8453
Sonic	146
HyperEVM	999
Unichain	130
Optimism	10
Polygon	137
Sei	1329
Avalanche	43114
Plasma	9745

Limit Order API supported chains

Chain Name	Chain ID	Contract Address
Ethereum	1	https://etherscan.io/address/0xcC8d695603ce0b43D352891892FcC716c6a7C9f4
BNB Chain	56	https://bscscan.com/address/0xA8A0213bb2ce671E457Ec14D08EB9d40E6DA8e2d
Arbitrum	42161	https://arbiscan.io/address/0x23c78b3d85b45bfa6dc8e09b517ba2d9b0ecca8c
Berachain	80094
Base	8453	https://basescan.org/address/0xb5486f71c902fe0844bb07221fa8f47834d90b1b
Sonic	146	https://sonicscan.org/address/0xb45373129b4220160b92bd2320869f44d48ecd01
HyperEVM	999	https://purrsec.com/address/0x4E6b18217AC75A779262c20B3Cc07050cBe7282B
Optimism	10	https://optimistic.etherscan.io/address/0xc0A62DDCd284020dC883C642A3Ed5D2A1770eb91
Polygon	137	https://polygonscan.com/address/0xFA9B584Bc9543B66BeFdc41fb1DA8636edD7a697
Sei	1329	https://seiscan.io/address/0xfE9a934A8607EF020aDf22D4431d6cE6005Aa4d3
Avalanche	43114	https://polygonscan.com/address/0x99b3488Ee3432bB60256140b4BD2488E3b6A705f
Plasma	9745