# Get Product by ID Returns a product by its ID. Endpoint: GET /billing/products/{product_id} Version: 1.0.0 Security: apiKeyAuth ## Path parameters: - `product_id` (string, required) ## Header parameters: - `x-entity-id` (string) Optional entity ID for scoped access to entity-specific data ## Response 200 fields (application/json): - `id` (string, required) The unique identifier for the product - `name` (string, required) The name of the product - `description` (any) The description of the product - `default_price` (string, required) The default price of the product ## Response 422 fields (application/json): - `detail` (array) - `detail.loc` (array, required) - `detail.msg` (string, required) - `detail.type` (string, required)