Funnels & Templates

To begin integration, you need to reach out to eCommerce@mcmaster.com. They will provide you with a client certificate and password, which are required for authentication.

You must first make a Log In request with your client certificate, username, and password. If successful, you will receive an authorization token that must be included as a bearer token in all subsequent requests. Tokens expire after 24 hours or when a Log Out request is made.

Yes, each user has limits on the number of product subscriptions they can maintain and how many can be added each day. Additionally, bandwidth-intensive endpoints like retrieving CAD files are rate-limited.

Error responses include an ErrorCode, ErrorMessage, and ErrorDescription. For example, a 400 BAD_REQUEST error means your request was improperly formed, while a 500 INTERNAL_SERVER_ERROR indicates an unexpected issue on McMaster-Carr's end. Contact them for further investigation if needed.

You need to make an Add Product request with the product's URL. Once subscribed, you can retrieve its information, price, images, CAD files, and datasheets through the respective endpoints.

Yes, the Changes endpoint allows you to retrieve part numbers that have changed since a given start date. Note that price changes are not included in this endpoint.

Discontinued products will be marked as inactive and may include a link to a suggested replacement. Differences between the discontinued product and the replacement will be listed under SuggestedProductDifferences.

McMaster-Carr provides a Postman collection JSON that you can download and import into Postman to test sample requests and responses.