Payment networks move money. SpendShield decides whether it should move at all.

Watch an AI agent try to spend your money — and get stopped

Every result below is real output from the SpendShield engine. Pick a scenario. The agent asks to pay → SpendShield answers ALLOW / APPROVAL / DENY — and explains why, with stable reason codes an LLM can consume.
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Run it yourself in 5 minutes → pip install spendshield
SpendShield — 218+ tests · security constitution · audit hash chain. Scenarios are generated by the real engine (v0.7.2+). GitHub · Reality Test