# JWT Verify

> Implement JWT verification middleware in FastAPI for user auth. Use when securing APIs or handling tokens.

- Skill: `diegosouzapw/jwt-verify-2` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add diegosouzapw/jwt-verify-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/diegosouzapw/jwt-verify-2/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: diegosouzapw (https://skillmd.com/u/diegosouzapw)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/diegosouzapw/jwt-verify-2

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# JWTVerify Instructions
Input: Request with Authorization header, shared secret.
Output: Verified user claims or 401 error.
Steps:
1. Install dependencies if needed (jose, fastapi-security).
2. Generate middleware code.
Example Code:
from fastapi import Depends, HTTPException
from jose import JWTError, jwt
from fastapi.security import HTTPBearer
security = HTTPBearer()
async def verify_jwt(token: str = Depends(security)):
    try:
        payload = jwt.decode(token.credentials, SECRET_KEY, algorithms=["HS256"])
        return payload
    except JWTError:
        raise HTTPException(401, "Invalid token")