What it means

A 429 Too Many Requests response indicates the client has been rate-limited. The server is refusing to process the request because the client has exceeded the allowed request rate. This is common with public APIs and helps prevent abuse.

Common causes

• An API rate limit was exceeded.
• Too many login attempts in a short time.
• Automated requests are coming in too quickly.

How to fix it

• Slow down the rate of requests.
• Check the Retry-After header in the response for guidance on when to retry.
• Implement exponential backoff in your client.
• If you are a heavy user of an API, consider upgrading your plan.