Optimism

Preview chain. Sauce supports transactions on Ethereum, Base, Arc and Solana, and the testnets Arc Testnet, Base Sepolia, Ethereum Sepolia, Solana Devnet and Solana Testnet only. On Optimism a program compiles (sauce compile) and the reads work (sauce globals, sauce price, sauce pools), and sauce simulate runs wherever the release is deployed on the chain, but the sauce command and the MCP server build and send no transaction: sauce tx, sauce run and sauce pot --deploy are refused, naming this chain and the supported chains: the last section shows the refusal and how to request this chain.

Fact	Value
Support	preview: compile and read; no transaction is built or sent
Slug (`--chain`)	`optimism`; also `op`, `op-mainnet`
Chain id	10
Kind	EVM
Name in a program	`Optimism`
In TypeScript	`import { Optimism } from "@eco-incorp/sauce"`: its tokens and protocol namespaces are properties of it
Native coin	ETH (Ether), 18 decimals
Sauce	the engine, Kitchen and Routers, at the same addresses on every EVM chain: Deployments
CCTP domain	2

In a program

Compiled with --chain optimism, a program names Optimism’s tokens and contracts with no import; the same file compiled for another chain resolves each name there, or fails where the chain does not have it.

function main() {
  // `USDC` is Optimism's USDC: `0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85`.
  const held = USDC.balanceOf(pot);
  // `Token(address)` is any other ERC-20, and works for a symbol's address too.
  require(Token(USDC).balanceOf(pot) == held);
  // `AaveV3.Pool` is Optimism's pool: `0x794a61358D6845594F94dc1DB02A252b5b4814aD`.
  require(AaveV3.Pool != 0);
  // The same contract, qualified by the chain's name, from a program on any chain.
  require(Optimism.AaveV3.Pool == AaveV3.Pool);
}

Tokens

Symbol	Address	Decimals
`USDC`	`0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85`	6
`USDT`	`0x94b008aA00579c1307B0EF2c499aD98a8ce58e58`	6
`USDT0`	`0x01bFF41798a0BcF287b996046Ca68b395DbC1071`	6
`WETH`	`0x4200000000000000000000000000000000000006`	18

Protocols

Every protocol the registry records here, each contract with how a program names it: its namespace contract, or its ABI imported from ./protocols/<slug>/<Export>.json and bound to the address.

Protocol	Contract	Address	In a program
Aave V3	pool	`0x794a61358D6845594F94dc1DB02A252b5b4814aD`	`AaveV3.Pool`
Aave V3	poolAddressesProvider	`0xa97684ead0e402dC232d5A977953DF7ECBaB3CDb`	`AaveV3.PoolAddressesProvider`
Across	spokePool	`0x6f26Bf09B1C792e3228e5467807a900A503c0281`	`Across.SpokePool`
Axelar	gateway	`0xe432150cce91c13a887f7D836923d5597adD8E31`	`Axelar.Gateway`
Axelar	its	`0xB5FB4BE02232B1bBA4dC8f81dc24C26980dE9e3C`	`Axelar.ITS`
Balancer V2	vault	`0xBA12222222228d8Ba445958a75a0704d566BF2C8`	`BalancerV2.Vault`
Beefy Finance	BIFI	`0x4E720DD3Ac5CFe1e1fbDE4935f386Bb1C66F4642`	`Beefy.BIFI`
CCTP	tokenMessenger	`0x28b5a0e9C621a5BadaA536219b3a228C8168cf5d`	`Cctp.TokenMessenger`
Celer Network	bridge	`0x9D39Fc627A6d9d9F8C831c16995b209548cc3401`	`Celer.Bridge`
Chainlink CCIP	router	`0x3206695CaE29952f4b0c22a169725a865bc8Ce0f`	`ChainlinkCcip.Router`
Circle Gateway	gatewayMinter	`0x2222222d7164433c4C09B0b0D809a9b52C04C205`	`CircleGateway.GatewayMinter`
Circle Gateway	gatewayWallet	`0x77777777Dcc4d5A8B6E418Fd04D8997ef11000eE`	`CircleGateway.GatewayWallet`
Compound V3	cUSDCv3	`0x2e44e174f7D53F0212823acC11C01A11d58c5bCB`	`CompoundV3.CUSDCv3`
Connext (Everclear)	everclearSpoke	`0xa05A3380889115bf313f1Db9d5f335157Be4D816`	`Connext.EverclearSpoke`
Curve Finance	routerNG	`0x0DCDED3545D565bA3B19E683431381007245d983`	`Curve.RouterNG`
deBridge	dlnDestination	`0xE7351Fd770A37282b91D153Ee690B63579D6dd7f`	`Debridge.DlnDestination`
deBridge	dlnSource	`0xeF4fB24aD0916217251F553c0596F8Edc630EB66`	`Debridge.DlnSource`
Gelato Network	automate	`0x2A6C106ae13B558BB9E2Ec64Bd2f1f7BEFF3A5E0`	`Gelato.Automate`
Hop Protocol	l2AmmWrapper	`0x86cA30bEF97fB651b8d866D45503684b90cb3312`	`Hop.L2AmmWrapper`
Hyperlane	mailbox	`0xd4C1905BB1D26BC93DAC913e13CaCC278CdCC80D`	`Hyperlane.Mailbox`
KyberSwap	elasticFactory	`0x5F1dddbf348aC2fbe22a163e30F99F9ECE3DD50a`	`Kyberswap.ElasticFactory`
KyberSwap	elasticRouter	`0xC1e7dFE73E1598E3910EF4C7845B68A9Ab6F4c83`	`Kyberswap.ElasticRouter`
KyberSwap	metaAggregationRouterV2	`0x6131B5fae19EA4f9D964eAc0408E4408b66337b5`	`Kyberswap.MetaAggregationRouterV2`
KyberSwap Aggregator	metaAggregationRouter	`0x6131B5fae19EA4f9D964eAc0408E4408b66337b5`	`KyberswapAggregator.MetaAggregationRouter`
LayerZero	endpointV2	`0x1a44076050125825900e736c501f859c50fE728c`	`Layerzero.EndpointV2`
LI.FI	lifiDiamond	`0x1231DEB6f5749EF6cE6943a275A1D3E7486F4EaE`	`Lifi.LiFiDiamond`
1inch	aggregationRouterV6	`0x111111125421cA6dc452d289314280a0f8842A65`	`Oneinch.AggregationRouterV6`
OpenOcean	exchangeV2	`0x6352a56caadC4F1E25CD6c75970Fa768A3304e64`	`Openocean.ExchangeV2`
Optimism Native Bridge	l2StandardBridge	`0x4200000000000000000000000000000000000010`	`OptimismBridge.L2StandardBridge`
ParaSwap	augustusV5	`0xDEF171Fe48CF0115B1d80b88dc8eAB59176FEe57`	`Paraswap.AugustusV5`
ParaSwap	augustusV6	`0x6A000F20005980200259B80c5102003040001068`	`Paraswap.AugustusV6`
Permit2	permit2	`0x000000000022D473030F116dDEE9F6B43aC78BA3`	`Permit2.Permit2`
Perpetual Protocol	clearingHouse	`0x82ac2CE43e33683c58BE4cDc40975E73aA50f459`	`PerpetualProtocol.ClearingHouse`
Perpetual Protocol	vault	`0xAD7b4C162707E0B2b5f6fdDbD3f8538A5fbA0d60`	`PerpetualProtocol.Vault`
Safe	safeL2V130	`0x3E5c63644E683549055b9Be8653de26E0B4CD36E`	`Safe.SafeL2V130`
Seaport	seaportV16	`0x0000000000000068F116a894984e2DB1123eB395`	`Seaport.SeaportV16`
Socket	socketGateway	`0x3a23F943181408EAC424116Af7b7790c94Cb97a5`	`Socket.SocketGateway`
Squid Router	squidRouter	`0xce16F69375520ab01377ce7B88f5BA8C48F8D666`	`Squid.SquidRouter`
Superfluid	cfaForwarder	`0xcfA132E353cB4E398080B9700609bb008eceB125`	`Superfluid.CFAForwarder`
Superfluid	host	`0x567c4B141ED61923967cA25Ef4906C8781069a10`	`Superfluid.Host`
SushiSwap V2	factory	`0xFbc12984689e5f15626Bad03Ad60160Fe98B303C`	`SushiswapV2.Factory`
SushiSwap V2	router	`0x2ABf469074dc0b54d793850807E6eb5Faf2625b1`	`SushiswapV2.Router`
Synapse Protocol	synapseBridge	`0xAf41a65F786339e7911F4acDAD6BD49426F2Dc6b`	`Synapse.SynapseBridge`
Thales	speedMarketsAMM	`0xE16B8a01490835EC1e76bAbbB3Cadd8921b32001`	`Thales.SpeedMarketsAMM`
Thales	thalesAMM	`0x278B5A44397c9D8E52743fEdec263c4760dc1A1A`	`Thales.ThalesAMM`
Uniswap V2	factory	`0x0c3c1c532F1e39EdF36BE9Fe0bE1410313E074Bf`	`UniswapV2.Factory`
Uniswap V2	router	`0x4A7b5Da61326A6379179b40d00F57E5bbDC962c2`	`UniswapV2.Router`
Uniswap V3	factory	`0x1F98431c8aD98523631AE4a59f267346ea31F984`	`UniswapV3.Factory`
Uniswap V3	nonfungiblePositionManager	`0xC36442b4a4522E871399CD717aBDD847Ab11FE88`	`UniswapV3.NonfungiblePositionManager`
Uniswap V3	quoterV2	`0x61fFE014bA17989E743c5F6cB21bF9697530B21e`	`UniswapV3.QuoterV2`
Uniswap V3	swapRouter	`0xE592427A0AEce92De3Edee1F18E0157C05861564`	`UniswapV3.SwapRouter`
Uniswap V3	swapRouter02	`0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45`	`UniswapV3.SwapRouter02`
Uniswap V4	poolManager	`0x9a13F98Cb987694C9F086b1F5eB990EeA8264Ec3`	`UniswapV4.PoolManager`
Uniswap V4	positionManager	`0x3C3Ea4B57a46241e54610e5f022E5c45859A1017`	`UniswapV4.PositionManager`
Uniswap V4	stateView	`0xc18a3169788F4F75A170290584ECA6395C75Ecdb`	`UniswapV4.StateView`
Uniswap V4	universalRouter	`0x851116D9223fabED8E56C0E6b8Ad0c31d98B3507`	`UniswapV4.UniversalRouter`
Velodrome	poolFactory	`0xF1046053aa5682b4F9a81b5481394DA16BE5FF5a`	`Velodrome.PoolFactory`
Velodrome	routerV2	`0xa062aE8A9c5e11aaA026fc2670B0D65cCc8B2858`	`Velodrome.RouterV2`
Wormhole	coreBridge	`0xEe91C335eab126dF5fDB3797EA9d6aD93aeC9722`	`Wormhole.CoreBridge`
Wormhole	tokenBridge	`0x1D68124e65faFC907325e3EDbF8c4d84499DAa8b`	`Wormhole.TokenBridge`
0x Protocol	exchangeProxy	`0xDEF1ABE32c034e558Cdd535791643C58a13aCC10`	`Zerox.ExchangeProxy`

Requesting support

On Optimism, sauce tx, sauce run and sauce pot --deploy exit with status 1 before they reach an endpoint or read a key. The first line sauce tx prints is:

sauce tx: building the cook transaction is refused: it involves optimism (Optimism, chain id 10), a preview chain. The sauce command and its MCP server build and send transactions only on Ethereum, Base, Arc and Solana, and the testnets Arc Testnet, Base Sepolia, Ethereum Sepolia, Solana Devnet and Solana Testnet. On a preview chain they build and send none. A program still compiles there and globals, price, pools and pot's prediction still read; simulate runs wherever the release is deployed on the chain, and says so where it is not.

To request Optimism, contact Eco through Support and community, naming the chain and its id (Optimism, 10) and what you want to run there.

Next steps

Chains: every other chain, with its support.
Names and registries: how a name in a program becomes an address on the chain it is compiled for.
Glossary: the words these pages use, in plain terms.

Start here

Integration guides

Language reference

SauceScript libraries

Runtime and security

Troubleshooting and production

Chains and protocols

@eco-incorp/sauce

@eco-incorp/sauce-compiler

In a program

Tokens

Protocols

Requesting support

Next steps

​In a program

​Tokens

​Protocols

​Requesting support

​Next steps

In a program

Tokens

Protocols

Requesting support

Next steps