Aidress vs Kastra

are utilities designed to be called by a model: their inputs are designed to be generated by models, and their outputs are designed to be passed back to models.

Control what your AI is allowed to do. Sub-millisecond authorization for every prompt, tool call, shell command, and API request.

About Aidress

are utilities designed to be called by a model: their inputs are designed to be generated by models, and their outputs are designed to be passed back to models. A toolkit is a collection of tools meant to be used together. The following table shows tools that can be used as code interpreters: Tool/Toolkit Supported Languages Sandbox Lifetime Supports File Uploads Return Types Supports Self-Hosting . The following table shows tools that can be used to automate tasks in productivity tools: Tool/Toolkit Pricing .

About Kastra

Control what your AI is allowed to do. Sub-millisecond authorization for every prompt, tool call, shell command, and API request. Before an action runs, Kastra evaluates attribute-based policy in under one millisecond and returns allow, deny, redact, or hold. Recorded decisions form a cryptographically chained audit trail so operators, auditors, and agents can explain why something was permitted. Use the Kastra HTTP API from production agents, install Kastra Edge on developer machines to govern Claude Code, Cursor, and Codex, or connect an MCP client to read governance data.