
Gas Killer
Gas Killer
Secure contracts shouldn't cost more.
Cheaper, safer smart contracts without rewriting them.
Why Gas Killer
Cheaper execution
Up to 99% gas savings, verified by aggregate signature.
Safer contracts
Room for the checks and invariants that gas costs rule out.
Simple integration
No new languages. No rearchitecting your smart contract.
How
Off-chain execution. On-chain security.
Operators verifiably simulate transactions off-chain and write back only the essential state changes, compressing expensive computation into a single signature verification on-chain.

Upgrade your contract
Add a single line of Solidity. No new languages, no rearchitecting, no application-specific rewrites.
Redirect to the RPC
Point transactions at the Gas Killer RPC. Execution moves off-chain; only the final state update lands on-chain, verified by an aggregate signature.
If the network is unavailable, transactions fall back to executing on-chain. Gas Killer is never a bottleneck. Operators returning incorrect outputs are rejected and slashed.
Services
Turn gas savings into composable services.
The surplus Gas Killer creates isn't just a cost reduction. It's programmable economic primitives you can route into your protocol.
Gas Save
Direct cost reduction applied automatically to every transaction.
Gas Rebate
Return a portion of savings to end users, improving retention and loyalty.
Gas Buyback
Channel surplus into protocol token buybacks for constant demand pressure.
Gas Expand
Run transactions that exceed the block gas limit while staying verifiable.
Case study · RAILGUN
Privacy on Ethereum at half the cost.
RAILGUN uses zk-SNARKs for shielded transactions on Ethereum: powerful, but expensive for everyday users. We ran Gas Killer against 400 historical RAILGUN transactions from October 2025.
Average Gas Killer savings for RAILGUN
Shield
Transact
Backed

Opacity Labs
Investor
The team behind Verified Data Network: zkTLS and MPC infrastructure enabling private data sharing across web2 and web3.

Scoopy Trooples
Advisor
Founder of Alchemix.
Updates