> ## Documentation Index > Fetch the complete documentation index at: https://docs.ornn.com/llms.txt > Use this file to discover all available pages before exploring further. # Activate a reservation > Requests machines for a VM or Bare Metal reservation during its reserved window. Ornn also activates reservations automatically when their window starts, so you only need this call to start sooner within the window or to retry a pending activation. A VM reservation gets one VM per reserved node, booted from the saved disk; a Bare Metal reservation is assigned its hosts. Activation does not install your SSH keys; launch access afterward. A 200 response means machines were requested, not that they are reachable. Repeating the call on an activated reservation returns it unchanged. If you receive 409 runtime_pending, repeat the same request. Kubernetes and Slurm reservations use the cluster routes instead. Requires an approved organization. Ornn activates VM and Bare Metal reservations automatically when their window starts. After activation, [launch access](/api-reference/virtual-machines/launch) to deliver your SSH keys. ## OpenAPI ````yaml openapi.yaml POST /commerce/reservations/{reservationId}/activate openapi: 3.1.0 info: title: Ornn compute API version: 1.0.0 description: >- Customer HTTP API for Ornn GPU capacity. It covers reserved capacity and nodes, VM and Bare Metal access, Kubernetes and Slurm clusters, SSH keys, storage volumes and GitHub repositories, private networks, monitoring, buying and selling capacity (Reserve, Market, Spot, and Relist), and billing. API keys are scoped to one organization and act with their creator's access there; account, team, and API-key management stay in the console. Most operations require an approved organization. See https://docs.ornn.com/api-keys to create a key and https://docs.ornn.com/guides/kubernetes-api for an end-to-end Kubernetes integration. Examples use fictional IDs and credentials. The info.version field identifies the contract revision, not a shared API path version. contact: email: support@ornn.com servers: - url: https://api.ornn.com description: Production security: - OrnnApiKey: [] tags: - name: Authentication - name: Reservations - name: GPU nodes - name: Clusters - name: Workers - name: Virtual machines description: >- Choose a VM disk, launch VM access on a reservation, and read each VM's status, launch progress, and SSH connection details. - name: Bare Metal description: >- Launch Bare Metal access on a reservation, read a host's readiness and SSH connection details, and reboot or hard reset it. - name: SSH keys description: >- Register public keys for your organization, choose which keys a VM or Bare Metal reservation uses, and queue key delivery to machines. Slurm clusters take organization key IDs at launch. Kubernetes API access does not use SSH keys. - name: Reserve description: >- Browse reserved-capacity listings and their terms, and post, cancel, or accept offers. Reserve listings are visible to approved organizations. - name: Market description: >- Browse relisted capacity and buy windows at the asking price, paid up front. Open to every member of your organization. - name: Spot description: >- Hourly order books for VMs with 1, 2, 4, or 8 GPUs on one node: read books, trades, and quotes, place and cancel bids, and follow fills. - name: Relist description: >- Sell whole nodes from a reservation you hold at your asking price, and manage those listings. - name: Storage description: >- Managed volumes, their files, and GitHub repository pulls. Volumes belong to the API key's creator in the key's organization. - name: Networks description: >- Organization private networks and the WireGuard configs you use to reach private machines and clusters. - name: Monitoring description: >- Machine telemetry and console logs for capacity your organization holds. Reads are limited to your reservation window. - name: Billing description: >- Invoices, billing summary, usage cost, Ornn credits, and account statements. Saving a card and paying invoices stay in the console. externalDocs: description: REST integration walkthrough url: >- https://docs.ornn.com/guides/kubernetes-access#provision-and-manage-through-rest paths: /commerce/reservations/{reservationId}/activate: post: tags: - Virtual machines - Bare Metal summary: Activate a VM or Bare Metal reservation description: >- Requests machines for a VM or Bare Metal reservation during its reserved window. Ornn also activates reservations automatically when their window starts, so you only need this call to start sooner within the window or to retry a pending activation. A VM reservation gets one VM per reserved node, booted from the saved disk; a Bare Metal reservation is assigned its hosts. Activation does not install your SSH keys; launch access afterward. A 200 response means machines were requested, not that they are reachable. Repeating the call on an activated reservation returns it unchanged. If you receive 409 runtime_pending, repeat the same request. Kubernetes and Slurm reservations use the cluster routes instead. Requires an approved organization. operationId: accessActivateReservation parameters: - name: reservationId in: path required: true description: Reservation ID. schema: type: string format: uuid example: 11111111-1111-4111-8111-111111111111 responses: '200': description: >- Activation requested. deployedAt is set when machines were requested. content: application/json: schema: $ref: '#/components/schemas/Reservation' example: reservationId: 11111111-1111-4111-8111-111111111111 customerId: 22222222-2222-4222-8222-222222222222 status: active isSpot: false provisioningType: virtual-machine gpuSlug: h100 gpusPerNode: 8 reservedNodeCount: 1 reservedGpuCount: 8 startsAt: '2026-10-15T00:00:00Z' endsAt: '2026-10-22T00:00:00Z' vmDiskId: 77777777-7777-4777-8777-777777777777 deployedAt: '2026-10-15T00:02:11Z' pendingOperation: null '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '409': description: >- The reservation is outside its window or has ended, another operation is pending, or machine changes have not finished. Retry the same request for runtime_pending. content: application/json: schema: $ref: '#/components/schemas/Error' example: detail: code: outside_reservation_window message: Activate this reservation during its reserved time window. '422': description: >- The reservation is a Kubernetes or Slurm reservation, or no VM disk is available. content: application/json: schema: $ref: '#/components/schemas/Error' example: detail: code: controller_required message: >- Use the cluster lifecycle for Kubernetes or Slurm reservations. default: $ref: '#/components/responses/Error' components: schemas: Reservation: type: object required: - reservationId - status - isSpot - reservedNodeCount - reservedGpuCount - startsAt - endsAt properties: reservationId: type: string format: uuid customerId: type: string format: uuid listingId: type: string format: uuid listingTermId: type: string format: uuid status: type: string enum: - confirmed - active - completed - cancelled isSpot: type: boolean provisioningType: type: string enum: - virtual-machine - bare-metal - kubernetes - slurm facilityId: type: string format: uuid gpuSlug: type: string gpusPerNode: type: integer reservedNodeCount: type: integer reservedGpuCount: type: integer startsAt: type: string format: date-time endsAt: type: - string - 'null' format: date-time pricePerGpuHourMicroUsd: type: integer format: int64 description: >- Your agreed reservation rate in integer micro-USD per GPU-hour, including any fee you pay. Historical reservations without a saved rate show the linked listing term price. durationHours: type: - number - 'null' description: >- Original agreed duration in hours, separate from operational start and end dates. Renewable reservations retain this duration with a null end date. Null when no duration was agreed. renewable: type: - boolean - 'null' description: Whether the reservation contract permits renewal. downPaymentCents: type: - integer - 'null' format: int64 pendingOperation: type: - string - 'null' pendingOperationId: type: string format: uuid vmDiskId: type: - string - 'null' format: uuid deployedAt: type: - string - 'null' format: date-time endReason: type: - string - 'null' preemptNoticeSeconds: type: - integer - 'null' description: >- Spot and On-demand only. The notice, in seconds, this VM gets before its seller can take its node back, fixed when you bought it. Null for reserved bookings. transactionId: type: string format: uuid createdAt: type: string format: date-time updatedAt: type: string format: date-time relistableNodeCount: type: integer relistUnavailableReason: type: - string - 'null' relistableNodeIds: type: array items: type: string format: uuid Error: type: object properties: code: type: string detail: oneOf: - type: string - type: object required: - code - message properties: code: type: string message: type: string responses: Unauthorized: description: >- The credential is missing, invalid, revoked, or no longer belongs to a current organization member. Check the HTTP status before parsing the body. content: application/json: schema: $ref: '#/components/schemas/Error' Forbidden: description: >- The credential lacks access to this operation, or the organization requires approval. An API key does not bypass these checks. content: application/json: schema: $ref: '#/components/schemas/Error' Error: description: >- Unsuccessful request. Check HTTP status first. Errors may have detail.code/detail.message, a string detail and optional top-level code, or an empty/non-JSON body. 401: invalid credential; 403: access or approval required; 404: not visible or credentials not ready; 409: lifecycle conflict; 429: back off; 5xx: service failure. Inspect current state before retrying mutations. content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: OrnnApiKey: type: http scheme: bearer bearerFormat: ornn_sk_... description: >- Create an organization API key in Account Settings > Developer. Do not send this key to the Kubernetes API server. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.