Harden: Features, Pricing & Alternatives

What is Harden?

Harden is an AI Security tool that checks coding-agent tool calls before execution. Harden is free to use. It is available on macOS. It is aimed at developers and security teams.

Harden checks supported coding-agent tool calls before they run, locally on your machine. It is a free, local security tool for AI coding agents. It works with the agents you already use.

Built for developers and security teams.

Key capabilities

Features

Local Monitor
Tool Call Checks
Checks tool calls before execution.
Agent Compatibility
Works with existing coding agents.

Use cases

Check coding-agent tool calls before execution
Monitor coding agents locally on your machine
Ensure security for dark software factories

Who it's for

Pros & cons

Pros

Free plan available
Works with existing agents

Cons

No documented limitations yet.

Pricing

Free.

Harden plans
Plan	Price
Free	Free

See current pricing on Harden's website

AI models

GPT 5

Security & compliance

SOC 2
ISO 27001
SSO
Two-factor authentication
Encryption
Data deletion

As stated on Harden's website — not independently verified by AiByts.

FAQ

What is Harden?

Harden is an AI Security tool that checks coding-agent tool calls before execution. Harden checks supported coding-agent tool calls before they run, locally on your machine. It is a free, local security tool for AI coding agents. It works with the agents you already use.

Is Harden free?

Yes, Harden is free to use.

How much does Harden cost?

Harden offers one plan: Free (Free).

What platforms does Harden support?

Harden is available on macOS.

Who should use Harden?

Harden is built for developers and security teams. Common uses: check coding-agent tool calls before execution, monitor coding agents locally on your machine and ensure security for dark software factories.

What are the best alternatives to Harden?

Similar tools on AiByts include Snyk Code, Hopper, iDox.ai Guardrail, AuditOne and LochBot.