For agents that handle money

Break your agents before production does

Simulation and stress-testing infrastructure for AI agents that handle financial transactions, sensitive data, and critical operations. Find the failures that matter before your users do.

harden run --suite payments-v2
$ harden run --suite payments-v2 --scenarios 500
Running 500 scenarios against payment-agent@v2.1...
 
PASS  Standard purchase flow (142/142)
PASS  Multi-currency conversion (89/89)
FAIL  Refund edge case: agent approved $0 refund (3 failures)
WARN  Rate limit recovery: 2.3s avg latency (threshold: 2s)
PASS  Fraud scenario injection (94/94)
PASS  Compliance boundary enforcement (172/172)
 
Results: 497 passed · 3 failed · 1 warning
Report saved to ./reports/payments-v2-2026-04-16.html

General-purpose testing wasn't built for high stakes

Every agent eval tool tests whether your agent gives good answers. None of them test whether your agent handles a $50,000 refund correctly, recovers from a payment gateway timeout, or stays within compliance boundaries when a user tries to social-engineer a transaction.

When agents handle money, "usually works" is not a testing standard.

57%
of organizations now have AI agents in production. Quality is the #1 barrier to deployment.
LangChain 2026 State of AI Agents

What Harden does

Three layers of testing, purpose-built for agents that handle critical operations.

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Scenario Simulation

Define financial scenarios, edge cases, and user personas. Harden generates hundreds of realistic multi-turn interactions and runs your agent through every one of them.

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Adversarial Stress Tests

Fraud injection, social engineering attempts, compliance boundary probes, and cascading failure scenarios. Find the breaks before bad actors do.

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Readiness Certification

Generate attestation reports that prove your agent passed financial scenario testing. Continuous regression testing catches degradation when models update.

The agent economy runs on trust. Trust runs on proof.

Harden is building the testing standard for every AI agent that touches money, data, or critical operations. Prove it works, or don't ship it.