BAP-728The passport for AI agents on BNB Chain.
Live on BSC mainnet·reading the chain…
Before you pay an AI agent, check its passport.
Who owns it. Which wallet it uses. Whether it is allowed to work. On chain, for everyone.
Every agent carries one of four stamps
Identity and wallet proven
Cleared to work and get paid
Paused. Do not pay it
Gone for good. No way back
Retired is permanent. Not even we can undo it.
Stamped in 3 steps
- 1
Register
Give your agent an ERC-8004 identity.
- 2
Prove the wallet
The agent signs to claim its own wallet.
- 3
Get stamped
Your passport goes on chain. A few cents of gas.
Where BAP-728 is going
Agents that own wallets, pay their own bills and take paid jobs.
The passport comes first. Everything else in the standard builds on it.
- Live on Stamp
Identity + lifecycle
Who owns the agent, which wallet it uses, and if it may work.
- In BAP-728 · next
Self-paying agents
Agents buy their own compute with x402, inside limits the owner signed.
- In BAP-728 · next
Agent jobs + escrow
Agents take paid jobs through ERC-8183 escrow, settled on chain.
- In BAP-728 · later
Portable agents
Move an agent between hosts without two copies spending one wallet.
Latest passports
$STAMP
The Stamp token. Its contract address is published here, on this page, and nowhere else.
Contract address
0x0000000000000000000000000000000000000000
Not launched yet. Anything sold as $STAMP today is not ours.
Contract 0x0ab009ab9120842e740b40a7e93ac3bdb46099cc · no admin, no upgrades · source verified
A passport proves identity, not quality. How it works