> ## Documentation Index > Fetch the complete documentation index at: https://docs.server.express/llms.txt > Use this file to discover all available pages before exploring further. # Buy a specific in-stock dedicated server > The one-off path: a TenantOS machine sitting in stock rather than a plan. Re-reads the machine from TenantOS to confirm it's still for sale and to take its price, applies any reseller discount and coupon, then creates a PENDING monthly service and an UNPAID invoice due in 7 days. The root password is sealed, never stored in the clear. The OS install is a work order for staff. Writes a BUY_DEDICATED audit log entry and notifies staff on Discord and Telegram. A coupon that ran out between quote and commit returns 409. Unexpected failures return 500 with the underlying error message. Requires a complete billing address (428). ## OpenAPI ````yaml /api-reference/openapi.yaml post /v1/client/dedicated/buy openapi: 3.1.0 info: title: Server.Express API version: 1.0.0 description: >- The customer-facing Server.Express API: auth, billing, tickets, cloud and dedicated servers, hosting, reselling and account management. Every response uses the `{ success, data | error }` envelope. contact: name: Server.Express url: https://server.express servers: - url: https://my.server.express/api description: Production security: - bearerAuth: [] - apiToken: [] tags: - name: API Tokens - name: Account - name: Auth - name: Cloud - name: Coupons - name: Credits - name: Dashboard - name: Dedicated - name: Health - name: Hosting - name: Integrations - name: Invoices - name: Livechat - name: Notifications - name: Passkeys - name: Payments - name: Products - name: Public - name: Public Invoices - name: Public Tools - name: Reseller - name: SSH Keys - name: Services - name: Tasks - name: Teams - name: Tickets - name: Web Hosting - name: Webhooks paths: /v1/client/dedicated/buy: post: tags: - Dedicated summary: Buy a specific in-stock dedicated server description: >- The one-off path: a TenantOS machine sitting in stock rather than a plan. Re-reads the machine from TenantOS to confirm it's still for sale and to take its price, applies any reseller discount and coupon, then creates a PENDING monthly service and an UNPAID invoice due in 7 days. The root password is sealed, never stored in the clear. The OS install is a work order for staff. Writes a BUY_DEDICATED audit log entry and notifies staff on Discord and Telegram. A coupon that ran out between quote and commit returns 409. Unexpected failures return 500 with the underlying error message. Requires a complete billing address (428). operationId: publicClientBuyStockDedicated requestBody: required: true content: application/json: schema: type: object required: - tenantosId - hostname - profileId properties: tenantosId: type: string description: >- TenantOS server id, from GET /v1/client/dedicated/marketplace. hostname: type: string minLength: 1 profileId: type: integer description: Install profile id, from GET /v1/client/dedicated/profiles. rootPassword: type: string sshKeys: type: array items: type: string description: Public keys to install. couponCode: type: string responses: '200': description: Order placed. content: application/json: schema: type: object required: - success - data properties: success: type: boolean const: true data: $ref: '#/components/schemas/PublicClientOrderResult' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '409': $ref: '#/components/responses/Conflict' '428': description: The account has no complete billing address yet. content: application/json: schema: $ref: '#/components/schemas/PublicClientBillingDetailsRequired' '500': $ref: '#/components/responses/ServerError' security: - bearerAuth: [] components: schemas: PublicClientOrderResult: type: object required: - serviceId - invoiceId - invoiceNumber - total - currency properties: serviceId: type: string format: uuid invoiceId: type: string format: uuid invoiceNumber: type: string total: type: integer description: Invoice total including tax, minor units. currency: type: string PublicClientBillingDetailsRequired: type: object description: >- 428 Precondition Required — add the listed billing fields before ordering or paying. required: - success - error - data properties: success: type: boolean const: false error: type: string data: type: object required: - billingDetailsRequired - missing properties: billingDetailsRequired: type: boolean const: true missing: type: array items: type: string enum: - addressLine1 - city - postcode - country - companyName ErrorResponse: type: object required: - success - error properties: success: type: boolean const: false error: type: string description: Human-readable error message. additionalProperties: true responses: BadRequest: description: Validation failed or the request is malformed. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' Unauthorized: description: Missing, invalid or expired credentials. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' Forbidden: description: >- Authenticated but not allowed (missing scope, not an admin, or not your resource). content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' Conflict: description: The request conflicts with the resource's current state. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' ServerError: description: Unexpected server error. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT description: >- Session access token (JWT) from POST /v1/auth/login or /v1/auth/refresh. A session satisfies every API scope. apiToken: type: http scheme: bearer bearerFormat: se_live__ description: >- Personal API token created under Settings → API tokens. Only routes guarded by verifyApiAuth accept it, and the token must carry the scope named in the operation's x-required-scope. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.