# CloudHostUtils class

Namespace: [Rhino.Runtime](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.runtime.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md)

```cs
public static class CloudHostUtils
```

Public wrapper exposing the cloud entitlement gate to cross-platform consumers. Resolves the platform service lazily on first use; falls back to a no-op host when no platform implementation is registered.

## Properties

- [AppliesToThisInstance](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.cloudhostutils/appliestothisinstance.md): (static) True only when this instance is subject to Marketplace entitlement gating (its EC2 identity document claims our product code). Decoupled from [CloudHostUtils.IsEntitled](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.cloudhostutils/isentitled.md): an instance can apply yet be denied. False for non-EC2, classic EC2, other products, and on any error. Run-gate enforcement consults this to know whether the gate applies.
- [DenyReason](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.cloudhostutils/denyreason.md): (static) Human-readable reason the entitlement was actively denied. Null both when entitled AND when the gate doesn't apply to this instance.
- [IsEntitled](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.cloudhostutils/isentitled.md): (static) True when the running instance is entitled by its cloud provider. See `ICloudHost` remarks for tri-state semantics.
- [Signature](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.cloudhostutils/signature.md): (static) Signed proof of entitlement returned by the cloud provider (null when not applicable).

## Methods

- [CheckEntitlement](https://developer.rhino3d.com/api/rhinocommon/type/rhino.runtime.cloudhostutils/checkentitlement.md): (static) Performs the cloud entitlement check (and on AMI-based Marketplace products, also submits a metering record). Re-callable — each invocation runs the gate independently and the platform implementation makes no claim of idempotency. On EC2 with a Marketplace-attached product code and the right IAM role this calls AWS Marketplace MeterUsage; elsewhere this is a no-op.