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Register with Amazon Pay

To generate a valid request, you need an Amazon Pay account. If you are using the Button Generator to perform an Express integration, you can skip the steps below that are marked Optional.

Register for Amazon Pay

  1. To create a new merchant account or use your existing merchant account, go to https://pay.amazon.com/, click Merchant Sign Up, enter the requested information, click Submit, and then follow the instructions.
  2. Register a new Amazon Pay application to obtain the necessary Client ID:
    1. Go to Seller Central, and then select Integration > Integration Central from the navigation bar on the top-left side.
    2. Under the Manage client ID/store ID(s) section, click on Create new client ID/store ID, and enter information about your application.
    3. Under Web Settings, specify the values for authorizing interactions between your website and Amazon (Web browsers normally block cross-origin communication between scripts unless the script specifically allows it.):
      • Enter the Allowed JavaScript origins. An origin is the combination of protocol, domain name, and port &mdash. For example, https://www.example.com:8443. Allowed origins must use the HTTPS protocol. If you are using a standard port (port 443) you need only include the domain name (for example, https://www.example.com).
      • Enter Allowed return URLs. The return URL includes the protocol, domain, path, and query string(s) &mdash (for example, https://www.example.com/login.php).
  3. Click on Save changes
  4. If you will be doing a custom integration, note and save the Client ID/Store ID.
  5. Optional: For integrations that don't use the Button Generator, you need to note and save your Merchant ID. Your Merchant ID is used to sign your button or widget requests. To get your Merchant ID:
    1. In Seller Central, from the drop-down menu near the top of the page choose Amazon Pay.
    2. Click Settings, and then click Integration Settings.

      The Merchant ID is used as the sellerId parameter in the request.
  6. Optional: For integrations that don't use the Button Generator, you need to create your own signature to use for signing your requests. To create your own signature, get your MWS Access Key ID and Secret Access Key on the Amazon Pay console:
    1. In Seller Central, from the drop-down menu near the top of the page choose Amazon Pay.
    2. Click Integration, and then click MWS Access Key.