Claude Platform Docs

Update External Key

BetaExternalKey Beta.Organization.ExternalKeys.Update(parameters, cancellationToken = default)
POST/v1/organizations/external_keys/{external_key_id}

Partially update an external key config. Omitted fields are left unchanged.

display_name is always editable. geo and provider_config cannot be changed once any workspace references this config, because previously encrypted data requires the original key identity to decrypt.

Parameters
ExternalKeyUpdateParams parameters
required string externalKeyID

ID of the External Key.

maxLength2048
string? displayName

Human-friendly display name.

maxLength255
minLength1
Geo? geo

Data residency geo. Only us is supported.

Us("us")
ProviderConfig? providerConfig

KMS provider identity and auth coordinates.

class BetaAwsExternalKeyConfig { Type = "aws"; KmsArn; Region; RoleArn; }
JsonElement Type = "aws"
required string KmsArn

Full ARN of the AWS KMS key. On Claude Platform on AWS the key must be a single-Region key in your organization's own AWS account; cross-account keys, multi-Region keys, and alias ARNs are rejected.

maxLength2048
string? Region

AWS region. Derived from kms_arn if omitted.

string? RoleArn⁠Deprecated

IAM role ARN. Deprecated — Anthropic reaches the KMS key through its own intermediate role (or, on Claude Platform on AWS, with credentials AWS issues for the Workspace); this field is ignored.

class BetaGcpExternalKeyConfig { Type = "gcp"; KeyName; }
JsonElement Type = "gcp"
required string KeyName

Full resource name of the Cloud KMS key.

class BetaAzureExternalKeyConfigParam { Type = "azure"; KeyName; TenantID; /* 2 more */ }

Azure Key Vault provider configuration.

JsonElement Type = "azure"
required string KeyName

Name of the key within the vault.

required string TenantID

Azure AD tenant ID.

required string VaultUri

Key Vault data-plane URI — https://{vault-name}.vault.azure.net or https://{hsm-name}.managedhsm.azure.net.

string? ClientID

Azure AD application (client) ID. Omit to use Anthropic's multitenant app. Provide only if using a single-tenant app registration in the customer's directory.

Returns
class BetaExternalKey { Type = "external_key"; ID; Attachment; /* 5 more */ }

CMEK external key config belonging to the caller's organization.

Configs are organization-scoped. Workspaces attach to a config; once any workspace references it, the provider fields become effectively immutable (existing encrypted data needs the config for decrypt).

Update External Key
ExternalKeyUpdateParams parameters = new()
{
    ExternalKeyID = "external_key_id"
};

var betaExternalKey = await client.Beta.Organization.ExternalKeys.Update(parameters);

Console.WriteLine(betaExternalKey);
Returns Examples
Response 200
{
  "id": "ekey_01SDCCSbTxrXDpWc1phhtcfK",
  "attachment": {
    "type": "attached"
  },
  "created_at": "2024-10-30T23:58:27.427722Z",
  "display_name": "prod-us-key",
  "geo": "us",
  "provider_config": {
    "kms_arn": "arn:aws:kms:us-east-1:111122223333:key/abcd1234-5678-90ab-cdef-000011112222",
    "type": "aws",
    "region": "us-east-1",
    "role_arn": "arn:aws:iam::111122223333:role/anthropic-cmek"
  },
  "type": "external_key",
  "updated_at": "2024-10-30T23:58:27.427722Z"
}