Jwt Verify

Name: Jwt Verify
Author: majiayu000

ASecurity

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

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Added February 9, 2026

securitygofastapiapisecurity

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Security analysis

A100/100

Scanned February 12, 2026

npx -y skills add majiayu000/claude-skill-registry --skill jwt-verify --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md

---
name: jwt-verify
description: Implement JWT verification middleware in FastAPI for user auth. Use when securing APIs or handling tokens.
---
# 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")