Function createRequireAuthMiddleware

createRequireAuthMiddleware(): ((req, res, next) => void)
Create a middleware that requires a Bearer token in the Authorization header. Returns HTTP 401 if the token is missing or malformed.

This is a lightweight check that only verifies presence of a token. Full validation (is the token valid? does the user have access?) is handled by withPaywall() when a tool is actually called.

Returns ((req, res, next) => void)
Express middleware for token requirement
- - (req, res, next): void
  - Parameters
    - req: Request<ParamsDictionary, any, any, ParsedQs, Record<string, any>>
    - res: Response<any, Record<string, any>>
    - next: NextFunction
    Returns void
Example
```
const requireAuth = createRequireAuthMiddleware()

// Protect MCP endpoints
app.post('/mcp', requireAuth, mcpHandler)
app.get('/mcp', requireAuth, sseHandler)
```
- Defined in src/mcp/http/oauth-router.ts:318