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API calls are rate limited to prevent bursts of incoming traffic to help maximize stability. These limits are account-wide rather than per-user restrictions, meaning all API activity within your Vantage account contributes to these thresholds. These limits include a general rate limit of 1,000 requests per hour across all API endpoints, and a more restrictive limit of 5 requests per 5 seconds, specifically for Cost Report endpoints. If a client is rate limited, the API will return a 429 status code. If you need higher rate limits, contact support@vantage.sh. Three headers are returned with every API response that indicate how close the client is to being rate limited and when the limit will reset.
HeaderDescription
x-rate-limit-limitThe total limit for the given period of time.
x-rate-limit-remainingThe number of requests remaining in the current rate limit window.
x-rate-limit-resetThe time at which the current rate limit window resets to the value in x-rate-limit-limit, provided in Unix time.
Example: 
x-rate-limit-limit: 1000
x-rate-limit-remaining: 995
x-rate-limit-reset: 1619380800