VS OTHER AUTH LIBRARIES
How KavachOS differs
Most auth libraries are built for users. KavachOS is built for agents. Agent identity, MCP OAuth 2.1, and edge-native from the start.
| Capability | kavachos | better-auth | clerk | auth0 | stack-auth |
|---|---|---|---|---|---|
| Agent identity (first-class) | ✓ | ✗ | ✗ | ✗ | ✗ |
| OAuth 2.1 + PKCE S256 | ✓ | partial | ✓ | ✓ | ✓ |
| MCP auth server (RFC 9728/8707/8414/7591) | ✓ | ✗ | ✗ | ✗ | ✗ |
| Edge runtime (Workers, Deno, Bun) | ✓ | ✓ | ✓ | ✗ | partial |
| Zero deps in core | ✓ | ✗ | ✗ | ✗ | ✗ |
| TypeScript-first with Result types | ✓ | ✓ | partial | ✗ | ✓ |
| Open source (MIT) | ✓ | ✓ | ✗ | ✗ | ✓ |
| Self-host | ✓ | ✓ | ✗ | partial | ✓ |
LAST UPDATED 2026-04-17