What are a soft limit and a hard limit in an API?

Created by Zyla Labs, Modified on Tue, 03 Oct 2023 at 03:46 PM by Zyla Labs

In the dynamic realm of API subscriptions, understanding the intricacies of call limits is pivotal. This guide elucidates the key concepts behind Hard and Soft Limits, shedding light on their functionalities and implications.


API Call Quotas:

The subscription plan you choose dictates the number of API calls allowed per month. This allocation varies based on the plan tier – a crucial factor to consider.


Hard Limit Unveiled:

 
Enforcing a Hard Limit implies a stringent control mechanism. Once developers exhaust their allotted API calls, they are promptly restricted. For instance, a Basic plan with 1,000 API calls means no further requests until an upgrade.


Soft Limit Dynamics:

 

Soft Limits take a more lenient approach. Developers can continue making calls even beyond their limit. However, there's a catch – exceeding the limit incurs charges. Each additional call comes at a cost, calculated as Plan Value divided by the Total API Calls offered.


Illustrative Example:

Suppose a plan provides 1,000 API calls for $24.99. The price per excess call is $24.99 / 1000 = $0.0249. This pay-as-you-go model ensures fair billing for extra usage.


Soft Limits' Current Status:

 

As of now, Soft Limits for APIs are not activated. The system operates solely with Hard Limits, assuring precise control over subscription usage.


Choosing Your Strategy:

Developers must consider their usage patterns. Opt for a Hard Limit for strict control or a Soft Limit for flexibility with associated charges. Striking the right balance is key to optimal API subscription management.


Balancing between Hard and Soft Limits is pivotal for effective API call management. Choose a strategy aligned with your project's needs, ensuring both control and adaptability in your API usage.


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