KaiSign
Decentralized Clear Signing metadata curation for developers and users
Free Chrome extension to preview transactions before signing
The Problem We Solve
Blind signing puts your assets at risk
Blind Signing
Current hardware wallets show raw bytecode that's impossible to understand.
- Unreadable transaction data
- Easy to trick users
- Phishing attacks succeed
Clear Signing
KaiSign transforms bytecode into human-readable information.
- Clear transaction details
- Verify before signing
- Prevent phishing attacks
The Future is Autonomous
AI agents are already executing blockchain transactions. KaiSign gives them the verification layer they need to act safely on your behalf.
Without structured metadata, agents operate blind. They cannot confirm the transaction they built matches what you asked for. KaiSign closes this gap.
How It Works
Simple, decentralized, and secure
Submit Metadata
Contract owners submit ERC-7730 metadata describing their contract functions
Community Review
Metadata is reviewed and validated by the community before approval
Clear Signing
Hardware wallets display human-readable transaction details
Submit Without the Bond Token
The SubmissionSponsor posts the bond for you. All you need is Sepolia gas.
The bond token (pBTOKEN) is permissioned, but submitting is not. The SubmissionSponsor contract holds a bond pool and posts the 0.1 pBTOKEN bond on your behalf. Your entry goes through the same commit, reveal, and challenge window as any bonded submission, and the registry finalizes it on-chain.
Generate ERC-7730 metadata
Describe your contract's functions in ERC-7730 JSON. Bootstrap it from a verified ABI, or ask your agent through the KaiSign MCP.
Create a burner, fund it with gas only
Creates a password-encrypted burner key on your machine. Fund it with a little Sepolia ETH for gas. No bond token ever touches it.
Submit through the sponsor
One command posts your metadata as an EIP-4844 blob, then commits and reveals through the sponsor: sponsoredCommit, then sponsoredReveal.
Survive the challenge window
Anyone can challenge the entry with a bond through Reality.eth. Entries that survive finalize, and the registry records them on-chain. That record is what wallets and agents verify against.
0xf70D41afe5Ff76Ac3Bee86BCBda07450f3b590F00x8a9d99D4EF98A342FeE36Bb80F62381906E02cA8Agents can do this too. The flow ships as MCP tools (init_submission_burner, submit_sponsored_metadata), so the full submission can run from a conversation.
Key Features
Built for security, designed for everyone
Fully Decentralized
No central authority controls the metadata. Community-driven curation ensures transparency and trust.
ERC-7730 Based
Built on the ERC-7730 standard with practical modifications for real-world compatibility.
Hardware Wallet Compatible
Designed for hardware wallet integration. Requires firmware updates from wallet providers to enable.
Real-Time Updates
New metadata is available immediately after on-chain confirmation. No delays.
Open Source
Smart contract code is open source and auditable. Contribute to the protocol's development.
Security First
Prevent phishing attacks by giving users the ability to verify exactly what they're signing.
See It In Action
Preview how clear signing transforms your transaction experience
Chrome Extension
Preview any transaction before signing with our free Chrome extension.
Hardware Wallet
Clear signing directly on your Ledger device.
Built For The Ecosystem
Clear signing benefits everyone in Web3
End Users
Understand what you're signing before approving.
- Protect your assets
- Avoid scams
- Sign with confidence
dApp Developers
Make contracts transparent, build trust.
- Submit metadata easily
- Increase adoption
- Reduce support tickets
Protocols
Clear signing for all contract interactions.
- Professional UX
- Security compliance
- User confidence
Wallet Providers
Integrate clear signing for better security.
- Easy integration
- Enhanced security
- Better UX
Ready to Sign with Confidence?
Join the movement towards transparent transaction signing
Free to use. No account required.