Kastra vs Overslash

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

One gateway between your agent and every service it touches. OAuth, secrets, approvals, and audit, handled.

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.

About Overslash

One gateway between your agent and every service it touches. OAuth, secrets, approvals, and audit, handled. What it does One gateway between your agent and everything else. It handles secrets, OAuth, MCP, human approvals, and authenticated HTTP execution. Any MCP-capable agent, Claude Code, Overfolder, OpenClaw, or your own, connects to Overslash once. When you want to bring colleagues, create a Team org at €3 per seat. It will follow the skill, enroll itself under your Overslash account, and ask you for permissions as they come up.