Anthropic's API enforces rate limits to prevent abuse and ensure fair access.

Types of Limits

• Requests per minute (RPM) — how many calls you can make per minute
• Tokens per minute (TPM) — total input + output tokens per minute
• Tokens per day (TPD) — daily token budget

How to Handle Rate Limits

• Implement exponential backoff on 429 errors
• Use the Batch API for non-real-time workloads
• Request a limit increase via the console

Reference:

Rate limits documentation

https://docs.anthropic.com/en/api/rate-limits