Built at Monad Blitz Bangalore V5
Prove you can afford it.
Reveal nothing.
Your AI agent proves it can afford a payment — without ever revealing what it's allowed to spend.
ZK
Zero-Knowledge
~250k
Gas Cost
0
Limit Revealed
The problem
Every AI spend limit writes the cap on-chain in plain text. Competitors read your budget and price accordingly. Your budget becomes their price floor.
The fix
Hide the limit with a zero-knowledge proof while still enforcing it mathematically. Over-limit requests literally can't be attempted — the proof doesn't exist.
How it works in 3 steps
- Commit your limit. We hash your secret limit + key. Only the hash goes on-chain. Your real limit stays private.
- Agent proves it can pay. The agent generates a mathematical proof that the request is within your hidden limit — without revealing the limit.
- Contract verifies or blocks. The contract checks the proof. Over-limit requests can't even produce one — they're blocked by math.
What's included
- Hidden spend limit. Enforced by a real Groth16 zero-knowledge proof, not a policy anyone promises to follow.
- Live in-browser proving. The proof is generated on your own machine in ~1–2 seconds — nothing is precomputed.
- Instant revocation. Kill a committed policy in one transaction if a key ever leaks — no stale proof can pass afterward.
- Autonomous agent demo. Watch a program make its own spending decisions and get validated (or blocked) with zero human clicks.
- Any wallet. Browser extensions (MetaMask, Trust Wallet, etc.) via automatic multi-wallet detection, or mobile via WalletConnect.
- Verified on-chain. Full contract source published and matched on Sourcify — nothing hidden about the code itself.