A humanoid robot standing in a dark studio, lit from one side.
Firewall On A2MCP · Pre-sign guard

AI agents now hold real money and pay on their own, with no human watching.

Spend
Firewall

01

See it catch a scam

Pick a situation an AI agent might face. The firewall checks it live, before anything is signed, and gives its verdict.

Allow — safe to send Review — looks risky Block — it's a scam
What the agent is about to do

    
              
              
    
              
              
            
    02

    What it stands between

    Guards against

    Wallet-draining approvals

    Catches payments that secretly hand a stranger unlimited access to the wallet.

    Guards against

    Fake lookalike addresses

    Spots recipients dressed up to look like someone the agent trusts.

    Guards against

    Known bad actors

    Screens the destination against lists of known scam and theft addresses.

    Enforces

    The owner's rules

    Won't spend more than you allow, or send to anywhere on your block list.