Anthropic Claude API Key Management

Anthropic's Claude API provides powerful AI capabilities. This guide covers everything you need to know about API key management, rate limits, and security best practices.

Creating Claude API Keys

Navigate to the Anthropic Console to create API keys. Use separate keys for development and production. Set appropriate permissions and never expose keys in client-side code.

Rate Limits and TPM

Claude API uses tokens-per-minute (TPM) limits. The default limit is 100K TPM for most accounts. Understand the difference between input and output tokens for accurate capacity planning.

Cost Optimization Strategies

• Use smaller models (Haiku) for simple tasks
• Implement prompt caching for repeated contexts
• Monitor token usage with the usage API
• Set budget alerts in the console
• Use streaming responses to reduce perceived latency

Security Best Practices

Never expose Claude API keys in frontend code. Use server-side proxies to make API calls. Implement request validation and rate limiting to prevent abuse.

Monitoring and Logging

Use Anthropic's built-in usage dashboard to track API consumption. Set up billing alerts to avoid unexpected charges. Log token usage per user for chargeback scenarios.