1. API Description

This API is used to start instances.


  • You can only perform this operation on instances whose status is STOPPED and that are not in the recycle bin.

  • If the API is called successfully, the instance status will become BOOTING. After the instance is started, its status will become RUNNING.

  • This API is an async API. A response is returned after the request is sent. However, it does not mean the start has been completed. You can use DescribeInstances to query the status of the instance. If the status changes from BOOTING to RUNNING, it means that the instance has been started successfully. Any operations on the instances are not allowed while creating.

  • Batch operations are supported. The maximum number of instances in each request is 100.

2. Input Parameters

The following request parameter list only provides API request parameters.

Parameter NameRequiredTypeDescription



Array of String

Instance ID(s).

To obtain the instance IDs, you can call DescribeInstances and look for instanceId in the response. The maximum number of instances in each request is 100.

3. Output Parameters

Parameter NameTypeDescription



The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Code Example

Start two instances with specified IDs

POST /api/v2/bmc HTTP/1.1
Content-Type: application/json
X-ZC-Action: StartInstances
<Common Request Params>

  "instanceIds": [

  "requestId": "TC1748D3E-452D-4F74-8485-7AA73718E453",
  "response": {
    "requestId": "TC1748D3E-452D-4F74-8485-7AA73718E453"

5. Developer Resources

Zenlayer Cloud API 2.0 integrates SDKs to make it easier for you to call APIs. More programming languages will be supported.

6. Error Codes

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.​

HTTP Status CodeError CodeDescription



Instance does not exist.



Operations on instances in recycle bin are not supported.



Only operations on instances in STOPPED status are supported.

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