Harden

Local security models that check every action your coding agent is about to take and block the dangerous ones before they run.

AppEngineering Coding agentsFree plan

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What is Harden?

Harden is local security models that check every action your coding agent is about to take and block the dangerous ones before they run. ZeroCrew lists it after checking it works for a company with no employees.

Harden's Agentic Integrity Foundation (AIF) runs cybersecurity models locally on your machine and checks each tool call from Claude Code, Codex, Cursor, Antigravity CLI and Kiro before it executes. It can allow an action, ask for approval, make it safe by redacting secrets, block it (like deleting a production namespace) and suggest a safe retry, or just log it. Decisions stay on your device. Free for individual developers on macOS and Linux, with compliance reporting, air-gap mode and managed rollout for companies.

By Harden.

Is Harden good for a one-person business?

Yes, one person can run Harden: you sign up and start without a sales call and you can export your data. ZeroCrew checked this on Harden's own site.

Start alone: Self-serve; Sign up without a demo, says its site
Can I leave: Data export; From its own site
Connects with: 8 apps; Claude Code, Codex, Cursor, Antigravity CLI

How big is Harden?

134 websites link to Harden, a domain rank of 196 out of 1,000. ZeroCrew checked the counts on November 10, 2026.

Websites linking and domain rank (0 to 1,000) from DataForSEO.

Harden reviews

Harden has no founder reviews yet, on ZeroCrew or in public posts we could find.

What products are similar to Harden?

Claude Code, GitHub Copilot, and heal do the same job as Harden (coding agents). ZeroCrew files every tool by the job it does.

Claude Code by AnthropicAnthropic's coding agent: it reads your codebase, edits files, runs commands, and opens pull requests.Agent

GitHub Copilot by GitHubAI pair programming and a coding agent inside GitHub.AppFree planMCPHas an agent

heal by MYIAAn agent that runs your product in a production-like sandbox and finds bugs code review missesAgentHas an agent

Cursor by AnysphereAn AI code editor with agents built in.AppFree planHas an agent

Harden integrations

Harden connects with 8 apps, including Claude Code, Codex, and Cursor; 3 of them are listed on ZeroCrew too. ZeroCrew read the list from Harden's own site on November 10, 2026.

Connects withClaude Code, Codex, Cursor, Antigravity CLI, Hermes, Kiro, OpenClaw, Jamf Now

Is Harden right for what you're building?

ZeroCrew's Agent Zero checks Harden against its site, what founders say about it, and its competitors. The result: a yes, a no, or a better tool for what you describe. Free.