BSH Knowledge Exchange v1

Discovery
  GET /v1/catalog
  GET /v1/resources/{resource_id}
  GET /v1/bundles
  GET /v1/bundles/{bundle_id}
  GET /v1/schema/resource

Purchase
  GET /v1/resources/{resource_id}/content
  GET /v1/bundles/{bundle_id}/content
  An unpaid request returns HTTP 402 with an MPP challenge containing the visible USD price and exact route scope. Obtain an owner-approved Stripe shared payment token, retry the same URL with the MPP credential, and retain the receipt. A payment is bound to the exact resource or bundle version and cannot be replayed for another product.

Example
  curl https://kx.blacksummitholdingsllc.com/v1/resources/BSH-FAC-001/content

Successful responses identify related resources, suggested bundles, version, and receipt reference. KX resources are deterministic, versioned professional knowledge objects rather than dynamically generated answers.