Note：

Billing for API Gateway started at 23:59:59, February 13, 2020. Please top up your Tencent Cloud account timely in order to avoid potential service suspension.

Billing Mode

API Gateway is billed on a pay-as-you-go basis.

Free Tier

After the service is activated, the first one million calls in each calendar month in the first year are free of charge, and excessive calls will be billed at the tiered prices.
After the service is activated, the first one GB of traffic in each calendar month in the first year is free of charge, and excessive traffic will be billed separately by region at the prices listed in the traffic fees table.

• If you use the private network API Gateway service, both the outbound and inbound traffic generated on the private network is free of charge.
• If you use the public network API Gateway service, the public network inbound traffic will be free of charge, while the public network outbound traffic will incur traffic fees. For more information on the specific traffic fees, please see the "Traffic Fees" section below.

Billable Item Description

Billable items of API Gateway include call fees and traffic fees.

Call fees

Traffic fees

Billing description

• Billable item: API calls
• Billing mode: pay-as-you-go
• Billing cycle: hourly
• Bill generation time: Tencent Cloud generates hourly bills for API calls, typically within 30 minutes after the end of the current billing cycle. After a bill is generated, the fees will be automatically deducted from the account balance for settlement. If your account balance is insufficient to make the payment, your account will fall into arrears
• Deduction method: after a bill is generated, the fees will be automatically deducted from your account balance for settlement
• Billing currency: USD
• Effective calls: number of effective API call requests received by API Gateway. A request that is not a frontend error will be considered as an effective call and billed

After the API Gateway service is activated, the first one million calls in each calendar month in the first year are free of charge, and excessive calls will be billed at the tiered prices.

Traffic fees

Traffic fees are calculated based on the accumulated traffic. The traffic billable items and their descriptions are as shown below:

Traffic direction

Billing description

• Billable item: traffic (public network outbound traffic)
• Billing mode: pay-as-you-go
• Billing cycle: hourly
• Bill generation time: a bill is generally generated in one hour after the current billing cycle ends.
• Deduction method: after a bill is generated, the fees will be automatically deducted from your account balance for settlement
• Billing currency: USD

If your backend business and API Gateway are in different regions, or the backend business is not in Tencent Cloud, the fees generated by the traffic from API Gateway to your backend business will be billed additionally according to Traffic Fees.

Billing Example

Billing for the Guangzhou region is as shown in the following example:
The backend business is in a different region from API Gateway and receives five million API calls accumulatively in a month, each of which returns a response of about 3 KB in size, and the size of each request of data forwarded from API Gateway to the backend business is 1 KB.

• API Gateway call fees = 5 million * 0.0089 USD/10,000 calls = 4.45 USD
• Total data transfer volume = 5 million * 3 KB = 15 million KB = 14.3 GB
• Total additional data transfer volume = 5 million * 1 KB = 5 million KB = 4.77 GB
• Total data transfer fees = 14.3 GB * 0.12 USD/GB + 4.77 GB * 0.12 USD/GB = 2.29 USD
• Total fees = 4.45 USD + 2.29 USD = 6.74 USD

Related links
For more information on arrears processing in API Gateway, data retention and purge schedule, and billing descriptions, please see Notes on Arrears for API Gateway.