HeimWall provides on-device observability for AI coding tools like Cursor, Claude Code, and Copilot. It detects and redacts sensitive data such as secrets and PII before they leave the engineer's machine, offering signal-based insights to managers without compromising privacy or developer workflow.
Freemium
0
How to use HeimWall?
Install the 15MB menu-bar agent on macOS. It captures prompts via Accessibility, clipboard polling, and a local TLS proxy. Tiered detection (regex and classifier) identifies sensitive data in under 50ms. Detected values are masked at the source, and managers see redacted signal, not raw content, on a dashboard.
HeimWall 's Core Features
On-device prompt capture and detection
Real-time sensitive data (secrets, PII) detection
Automatic data redaction before network transmission
Manager dashboard with signal, not content
Tool-agnostic: supports Cursor, Claude Code, Copilot, etc.
MDM/Jamf deployment for teams
Privacy-focused: prompts never leave the device by default
HeimWall 's Use Cases
Preventing accidental leakage of API keys and secrets
Ensuring compliance with data privacy regulations (PII detection)
Gaining visibility into AI tool adoption and usage patterns
Auditing sensitive data exposure in AI-assisted coding
Providing developers with real-time feedback on data handling
Securing proprietary code shared in AI prompts
Enabling secure AI tool adoption without blocking workflows
HeimWall 's Pricing
Solo
$0
Individual developer, free forever.
Team
$50/seat/month
10-100 engineers, basic manager dashboard.
Business
$99/seat/month
100-1,000 engineers, full manager dashboard and integrations.