KW Marketplace Subscription & Metered Billing API
The partner-facing surface behind the KW Marketplace, where vendors sell products to Keller Williams agents. Keller Williams pushes subscription lifecycle events — subscription creation, subscription creation for teams, subscription change, subscription cancel, status notification, user assignment and user unassignment — to a partner's secured HTTPS endpoint registered with the KW team, and partners report consumption back through a pre-configured metered billing endpoint that accepts a quantity and unit type per account. Sample payloads, synchronous and asynchronous subscription flows, an error-code reference and a subscription lifecycle walkthrough are published publicly on DevHub; no OpenAPI document is offered for this surface.