Hey Abubakar,
The rate limits for the API are set per API Key and endpoint. On the basic plan, each endpoint has a rate limit of up to 500 requests per second (r/s).
If this limit is exceeded, a 429 error will be returned. This error originates from the RPC provider target when its rate limit is reached. To circumvent this issue, you can add target to handle requests once the first target’s rate limit is hit. Essentially, by integrating more RPC providers, you can increase your overall rate limits.
For instance, if you have 8 RPC endpoints, each with a rate limit of 25 r/s, you can collectively achieve a rate limit of up to 200 r/s.
-Nick