Ethereum security.
Cents per transaction.
A zk-rollup that batches transactions and proves them to Ethereum — the same security, a fraction of the cost.
Securing $1.48B onchain across 240+ deployed protocols
Move assets to Slipstream
in a single transaction.
Deposit ETH or USDC from Ethereum. The portal contract locks your funds on L1 and credits them on Slipstream once the batch is proven.
Funds are locked by an onchain contract — not a custodian.
Connect a wallet
Slipstream never holds your keys. Connecting is read-only until you sign.
From your transaction to Ethereum finality
Slipstream executes transactions off-chain, then proves every batch is valid with a zero-knowledge proof posted to Ethereum L1.
Transactions batched
The sequencer orders thousands of transactions and bundles them into a single compressed batch.
Validity proof generated
A prover produces a zk-SNARK attesting that every transaction in the batch executed correctly.
Proof posted to L1
The proof and the new state root are submitted to Ethereum, where a contract verifies them.
Finalized on L1
Once Ethereum accepts the proof, the batch is final — secured by Ethereum, not a multisig.
Built like Ethereum. Priced like it should be.
zk-proof finality
Validity proofs, not fraud proofs. There is no 7-day challenge window for proving — every batch is mathematically verified before it settles on L1.
EVM-equivalent
Bytecode-level equivalence — not just compatible. The same compiled contract runs identically on Ethereum and Slipstream, opcode for opcode.
1.2s block time
Soft confirmations land in 1.2 seconds — fast enough for order books and games, while L1 proofs guarantee the final state.
$0.004 average fee
Proof costs are shared across an entire batch, so each transaction pays a fraction of a cent — even when Ethereum is congested.
Native account abstraction
ERC-4337 is built in at the protocol level. Sponsored gas, session keys and passkey wallets work without bolted-on infrastructure.
Decentralized-sequencer roadmap
A single sequencer today, a permissionless set tomorrow. The path to a shared, fault-tolerant proposer is on the public roadmap.
Deploy a contract — the same Solidity, the same tooling.
Slipstream exposes a standard Ethereum JSON-RPC endpoint. Foundry, Hardhat and viem all work unchanged — point them at the Slipstream RPC and ship.
- No new SDK. Your existing deploy scripts run as-is against the Slipstream RPC.
- Verified explorer. Source verification, traces and decoded calldata on Slipstreamscan.
- Free testnet. The Sepolia-backed testnet has a faucet and the same opcodes as mainnet.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
contract Vault {
mapping(address => uint256) public balance;
function deposit() external payable {
balance[msg.sender] += msg.value;
}
function withdraw(uint256 amount) external {
require(balance[msg.sender] >= amount, "low");
balance[msg.sender] -= amount;
payable(msg.sender).transfer(amount);
}
}forge create src/Vault.sol:Vault \
--rpc-url https://rpc.slipstream.xyz \
--private-key $PK \
--verify
# deployed to 0x71C0...4e9b · gas $0.004 · proven in 4mSlipstream by the numbers
Your funds never depend on trust
Audited by leading firms, covered by an open bug bounty, and built with an L1 escape hatch so you are never locked out.
Independent audits
Core contracts and the prover circuits were reviewed by two firms, with reports published in full.
Bug bounty
A standing program on Immunefi rewards responsible disclosure of contract and circuit vulnerabilities.
Verified onchain
Every production contract has verified source. Inspect the exact bytecode securing the network.
The L1 escape hatch
If the sequencer ever goes offline or censors your transactions, you are not stuck. Slipstream lets you submit transactions directly to the SlipstreamPortal on Ethereum. After a fixed delay, the L1 contract force-includes them and you can withdraw your funds straight from Ethereum — without the sequencer's cooperation, and without permission.
A roadmap to remove the operators
Decentralization is an engineering problem. Slipstream advances through three concrete stages, each one removing a point of trust.
Sequencer decentralization
Replace the single operator with a permissionless set of sequencers that rotate block production, so no one party can censor or halt the chain.
Multi-prover
Run multiple independent proof systems in parallel. A batch only finalizes when separate provers agree, eliminating reliance on one circuit implementation.
Governance handover
Move protocol upgrades to onchain governance with a timelock. The SLIP token is a voting and coordination mechanism — it grants no claim on fees or revenue.
Protocol changes ship behind a 7-day timelock — every upgrade is visible onchain before it takes effect.
Questions, answered
How is this cheaper than Ethereum mainnet?
Slipstream executes transactions off-chain and submits one zk validity proof for an entire batch. The fixed cost of posting that proof to Ethereum is split across every transaction in the batch — often tens of thousands of them. Each transaction pays only its small share, which is why the average fee lands near $0.004 instead of a mainnet gas price.
What happens to my funds if the sequencer goes down?
Your funds stay safe and recoverable. Assets are held by the SlipstreamPortal contract on Ethereum, never by the sequencer. If the sequencer is offline or censoring, you can submit transactions straight to the L1 portal, which force-includes them after a fixed delay. You can then withdraw directly from Ethereum without the sequencer's cooperation.
Is it EVM-equivalent — will my contracts just work?
Yes. Slipstream is EVM-equivalent at the bytecode level, not merely compatible. The same compiled artifact you deploy on Ethereum runs identically here, opcode for opcode. Foundry, Hardhat, viem and your existing deploy scripts work unchanged — you only swap the RPC URL.
When does the sequencer decentralize?
Sequencer decentralization is Stage 1 of the roadmap and is actively in progress. The single operator will be replaced by a permissionless set that rotates block production. The L1 escape hatch already protects users today, so decentralization improves liveness and censorship-resistance rather than custody — which is trust-minimized from day one.
How long until a withdrawal to mainnet finalizes?
A withdrawal finalizes once the batch containing it has a validity proof generated and that proof is verified and finalized on Ethereum L1. In practice this takes a few hours, dominated by proof generation and L1 finalization. Because Slipstream uses validity proofs rather than fraud proofs, there is no 7-day challenge window — withdrawals are dramatically faster than on optimistic rollups.
Ship on Ethereum.
Pay cents to do it.
Bridge in minutes, deploy with the tooling you already use, and inherit Ethereum's security.