Amazon Marketplace Web Service (Amazon MWS)
is a secure environment that uses
signatures for authentication and lets sellers delegate calling rights to developers
by using the Amazon MWS
authorization service. Before
you can develop Amazon MWS
applications for yourself or
others you must register as a developer on the User
page in Seller Central. See Registering as a developer
. To be eligible
to register for Amazon MWS
, you must have a
Professional selling plan. For more information, see Selling plans
in the Seller Central Help.
Note: You do not need to register as a developer to use Amazon MWS applications built by other software
Registering as a developer
Before you can develop Amazon MWS applications for
yourself or others you must register as a developer to get your Amazon MWS Developer ID and Developer Keys.
Important: Do Not Share Amazon MWS
Sharing your Amazon MWS Developer Keys is a
violation of Amazon’s Terms of Service. Sharing your Developer Keys may
result in suspension of your selling account and Developer
To register as a developer
- Go to the User
Permissions page in Seller Central and log
into your Amazon selling account as the primary user.
- Under Looking for your MWS Developer Access Keys? click the
here link and begin the registration workflow.
Using your Amazon MWS Developer ID and Developer
The following is an example of the Amazon MWS
Developer ID and Developer Keys that you receive when you register as a
- Developer ID (a 12-digit identifier): 1234-3214-4321
- AWS Access Key ID (a 20-character, alphanumeric identifier):
- Secret Key (a 40-character identifier):
If you are developing an Amazon MWS web
application for sellers or are providing Amazon MWS-related development services to sellers, you must provide your Developer ID
to those sellers so that they can authorize you to access their Amazon seller
accounts using Amazon MWS. Asking for a seller's
own Amazon MWS developer credentials is a
violation of Amazon Terms of Service.
The AWS Access Key ID is associated with your Amazon MWS registration. You include it in all Amazon MWS requests to identify yourself as the
sender of the request. The AWS Access Key ID is not a secret. To provide proof
that you truly are the sender of the request, you must also include a digital
signature. For all requests except those generated using the Amazon MWS client libraries, you calculate the
signature using your Secret Key. Amazon uses the AWS Access Key ID in the
request to look up your Secret Key and then calculates a digital signature with
the key. If the signature Amazon calculates matches the signature you sent, the
request is considered authentic. Otherwise, the request fails authentication and
is not processed.
Important: Your Secret Key is a secret that only you and Amazon should
know. It is important to keep it confidential to protect your account. Never
include your Secret Key in your requests to Amazon MWS and never e-mail it to anyone. Never
share it with anyone, even if they claim to be from Amazon. No one from
Amazon will ever ask you for your Secret Key.
Resetting your AWS Access Key ID and Secret Key
If you need to change your AWS Access Key ID and Secret Key, contact Seller
Support in your home marketplace via chat, telephone, or
Contact Amazon MWS
form and ask to reset your AWS Access
Key ID and Secret Key. If you use the form, provide the following
- For Subject, enter "Reset access keys to my Amazon MWS account".
- For Your comment, enter "Please reset the AWS Access Key ID and
Secret Key for my account."
You will receive a reply from the Seller Support team with a link to the User
Permissions page on Seller Central, where
you can generate a new key pair for your account. Only administrators can use
the link to create new keys.
Note: When Seller Support deletes your key pair,
all applications that use your current keys will be denied access to your
account information until you update those applications with your new
Authorizing a developer
A seller must authorize a developer to make calls to Amazon MWS on the seller's behalf.
For a seller to authorize a developer
- The developer must be a registered Amazon MWS
developer. See Registering as a developer.
- The developer gives their Developer ID to the seller.
- The seller goes to the Manage your
apps page in Seller Central and logs into their Amazon seller
account as the primary user.
- The seller clicks the Authorize new developer button and follows the