Security

Harden

On-device security layer that checks AI coding agents' actions before they run

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1 viewsPricing · FreemiumStable
The FalcoScan Intel Panel/Harden · Security
Data updated 4 October 2026
Opportunity
High
Band
Saturation
Open
Band
Wrapper Risk
Low
Band
Momentum
Stable
Market trend
The Brief

What Harden does

Harden intercepts tool calls from agents like Claude Code, Codex and Cursor and uses local models to allow, block or redact each action.

Builder’s Brief

Harden is a security tool on FalcoScan. On-device security layer that checks AI coding agents' actions before they run. FalcoScan rates Harden as high opportunity, a open market, and low wrapper risk. Momentum: stable. Pricing: Freemium.

Market position · Security

How Harden compares in Security

Harden has high opportunity and sits in the middle third of 347 live Security tools on FalcoScan. Across Security, the average opportunity score is 70 and the average saturation score 33. FalcoScan rates Harden's own market position as open. 121 of the 347 operating Security tools have hot momentum, and FalcoScan has recorded 1 shutdown in the category.

Harden compared with top-rated Security tools
ProductOpportunitySaturationPricingMomentum
HardenHighOpenFreemiumStable
APort Agent GuardrailsModerateOpenFreeStable
Agentic FabriqHighOpenFreemiumStable
AIM IntelligenceHighOpenPaidRising
AIR SecurityHighOpenPaidHot
AliceHighOpenPaidHot
Tagged

Harden shows up when builders search for these

agent-securitycoding-agentsguardrailson-device
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Alternatives to Harden

Products still running that do the same job, from the security market and related ones, closest match first.

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APort Agent Guardrails

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Agentic Fabriq

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AIM Intelligence

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AIR Security

An inline firewall that filters malicious skills and data before they reach AI agents

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Alice

AI safety platform that stress-tests, guards and monitors AI models in production

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Fabraix

Adversarial testing that tries to break AI agents before attackers do

Opportunity High
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Questions

Harden: common questions

Is Harden free?

Harden has a free tier, with paid plans.

What are the best alternatives to Harden?

The closest alternatives to Harden that are still running, matched on the AI capabilities, uses and audience they share, are APort Agent Guardrails, Agentic Fabriq, AIM Intelligence, AIR Security, and Alice.

Is Harden still operating?

Yes. FalcoScan's operating checks list Harden as active.

Does Harden have an API?

Yes. Harden offers an API.

How do I sign in to Harden?

Sign in on Harden's own website, harden.run. FalcoScan reviews Harden but does not run its accounts, so logins, passwords and billing are handled by Harden directly.

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