Amazon Mechanical Turk
API Reference (API Version 2017-01-17)

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The CreateWorkerBlock operation allows you to prevent a Worker from working on your HITs. For example, you can block a Worker who is producing poor quality work. You can block up to 100,000 Workers.

Request Syntax

{ "WorkerId": String, "Reason": String }

Request Parameters

The request accepts the following data in JSON format:

Name Description Required


The ID of the Worker to block

Type: String



A message that explains the reason for blocking the Worker. The Worker does not see this message.

Type: String


Response Elements

A successful request for the CreateWorkerBlock operation returns with no errors and an empty body.