SecurityAPI KeysBest PracticesProtection
LLM API Security Best Practices
Protect your API keys, prevent abuse, and secure your LLM integrations against common attack vectors.
API Key Management
Never expose API keys in client-side code. Use environment variables and rotate keys regularly.
Rate Limiting & Quotas
- Implement per-user rate limits
- Set spending caps per API key
- Monitor for unusual usage patterns
- Use IP-based blocking for abuse
Prompt Injection Prevention
Validate and sanitize all user inputs that become part of prompts. Implement input length limits.
Content Filtering
Add moderation layers to filter both inputs and outputs. Use Baidu or Alibaba's moderation APIs.