JWT Library

Create and validate JSON Web Tokens with HS256, claims validation, expiration checking, and token refresh. Zero dependencies.

Part of the Auth Vault toolkit by CodeVault.

Features

• HS256 (HMAC-SHA256) signing and verification
• Standard claims validation: exp, nbf, iss, aud, sub, iat, jti
• Automatic expiration checking with configurable clock skew tolerance
• Token refresh with rotation detection
• Base64url encoding/decoding per RFC 7515
• Custom claims support for application-specific data
• CLI tool for generating, decoding, and validating tokens
• Zero dependencies — Python stdlib only