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The Vayu API enforces rate limits via AWS API Gateway to ensure reliability and fair usage across all customers.

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Limits

Value
Rate limit500 requests/second
Burst limit100 requests
Need higher limits? Contact help@withvayu.com to discuss increases.

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Handling 429 responses

When you exceed the rate limit, the API returns HTTP 429 with the standard error format: 
{
  "type": "rate_limit_error",
  "code": "rate_limit_exceeded",
  "message": "Too many requests"
}

async function withRetry<T>(fn: () => Promise<T>, retries = 3): Promise<T> {
  for (let i = 0; i < retries; i++) {
    try {
      return await fn();
    } catch (error) {
      if (error.type === 'rate_limit_error' && i < retries - 1) {
        await new Promise(resolve => setTimeout(resolve, 1000));
      } else {
        throw error;
      }
    }
  }
}

import time

def with_retry(fn, retries=3):
    for i in range(retries):
        try:
            return fn()
        except VayuAPIError as e:
            if e.type == 'rate_limit_error' and i < retries - 1:
                time.sleep(1)
            else:
                raise

import "time"

func withRetry(fn func() error, retries int) error {
    for i := 0; i < retries; i++ {
        err := fn()
        if err == nil {
            return nil
        }
        if i < retries-1 {
            time.Sleep(time.Second)
            continue
        }
        return err
    }
    return nil
}