Calcium-Ion/AstrLink

What it solves

AstrLink acts as a local privacy gateway that prevents sensitive information—such as secrets, phone numbers, or email addresses—from being sent to AI model providers. It allows users to maintain control over their data by detecting and redacting sensitive content on their own machine before it ever leaves their device.

How it works

AstrLink sits between your AI agent and your chosen API providers. When you send a request, the app intercepts it locally to scan for sensitive data using built-in rules or a local privacy model. Based on your configured policies, it can warn you, block the request, or redact the sensitive parts. If needed, it can even restore the original data in the model's response so your agent can continue working without interruption. It also serves as a central hub to manage multiple API subscriptions, route requests between models, and track usage costs.

Who it’s for

This tool is designed for developers and power users who use AI agents and want to ensure their private or sensitive data remains on their local machine rather than being exposed to external API providers.

Highlights

• On-device privacy: Detects and redacts sensitive information locally using rules or privacy models.
• Centralized management: Connects multiple API providers and subscriptions (like Claude, Grok, and OpenAI) into one interface.
• Smart routing: Supports model redirects, provider failover, and request retries.
• Protocol support: Converts between various API protocols to ensure compatibility between different agents and providers.
• Usage tracking: Monitors request history, session traces, and estimated costs by provider or model.