Keep a wallet that argues back before you sign
A two-signature vault on Monad where an AI guardian reviews every withdrawal and writes its reasoning onchain; it cannot move funds alone, and you can always act alone after 48 hours.
- 10 minutes
- 6 steps
- Gas on Monad
- medium
- 3 solutions use it
- 1 live demo
A second signer can refuse a drain even if a scammer tricks you.
Chapter 1 · The wall
The wall you hit
A wallet signs anything. A second signer can catch the mistake first.
Chapter 2 · The power
What changes now
A two-signature vault on Monad where an AI guardian reviews every withdrawal and writes its reasoning onchain; it cannot move funds alone, and you can always act alone after 48 hours.
Chapter 3 · Do it
Do it yourself
- Open Second Signature and create your vault with your own wallet.
- Deposit a small amount.
- Propose a withdrawal and read the guardian's verdict.
- Know the escape hatch: you can execute any proposal alone after 48 hours.
- On other chains, a Safe with a second owner gives the same two-key guard.
- Code is new; keep only what you can afford at risk.
- 10 min
- Gas on Monad
- medium
It runs right here. Try the real thing.
Wallet or sign-in will not open in here? Open Second Signature in a new tab ↗
Chapter 4 · Prove it
Prove it worked
Your vault address exists on Monad and the guardian's decision is readable onchain.
Chapter 5 · Next star
Your next star
- Own · 3 min · About 0.1 USDT per scan on X LayerSee what a dapp will make you sign, before you signRecon connects a decoy wallet to a dapp, captures what it would ask you to sign without signing, and gives a plain verdict: danger, caution or safe.Go to this star →
- Together · 15 min · Gas to create; cheap on L2sShare a family wallet that needs two of three to move moneyA Safe multisig requires a set number of owners to approve any transaction, so no single lost phone or bad decision drains it.Go to this star →
Chapter 6 · Build
Build what is missing
A guardian rule pack for families: limits for teens, alerts to a parent.
Who could build it Families and new users nervous about self-custody.
Real problems
Solutions that use this
- A problem people bring“I'm scared of wallet drainers”You can see in plain words what any site will make you sign before you sign it: scan the request with Recon. For savings, add Second Signature as a...3 stops · see the route →
- A problem people bring“Make sure my family gets my crypto”You can build a crypto will that runs itself: put long-term savings in a Safe with trusted relatives as co-owners, for example 2 of 3, so family ca...2 stops · see the route →
- A problem people bring“Check a crypto site before you sign”You can see exactly what a site wants before you approve anything. Scan the transaction with Recon to read it in plain words, use a separate small...2 stops · see the route →
Questions
How long does it take to keep a wallet that argues back before you sign?
About 10 minutes, in 6 steps. The first step is: Open Second Signature and create your vault with your own wallet.
What does it cost?
Gas on Monad. Start with the free parts, and never put in more than you can afford to lose.
Do I need to be technical?
It is rated medium. A two-signature vault on Monad where an AI guardian reviews every withdrawal and writes its reasoning onchain; it cannot move funds alone, and you can always act alone after 48 hours.
How do I know it worked?
Your vault address exists on Monad and the guardian's decision is readable onchain.
What real problems does this help with?
I'm scared of wallet drainers. Make sure my family gets my crypto. Check a crypto site before you sign.