Claude Platform Docs

Update External Key

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.

Path parameters
external_key_id: string

ID of the External Key.

maxLength2048
Headers
"anthropic-version": optional string

The version of the Claude API you want to use.

Read more about versioning and our version history here.

Body
display_name: optional string or null

Human-friendly display name.

minLength1
maxLength255
geo: optional "us" or null

Data residency geo. Only us is supported.

provider_config: optional BetaAWSExternalKeyConfig or BetaGCPExternalKeyConfig or BetaAzureExternalKeyConfigParam or null

KMS provider identity and auth coordinates.

One of the following:
BetaAWSExternalKeyConfig object{ type: "aws", kms_arn, region, role_arn }
type: "aws"
kms_arn: string

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
region: optional string or null

AWS region. Derived from kms_arn if omitted.

role_arn: optional string or null⁠Deprecated

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.

BetaGCPExternalKeyConfig object{ type: "gcp", key_name }
type: "gcp"
key_name: string

Full resource name of the Cloud KMS key.

BetaAzureExternalKeyConfigParam object{ type: "azure", key_name, tenant_id, 2 more }

Azure Key Vault provider configuration.

type: "azure"
key_name: string

Name of the key within the vault.

tenant_id: string

Azure AD tenant ID.

vault_uri: string

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

client_id: optional string or null

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
BetaExternalKey object{ 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
curl https://api.anthropic.com/v1/organizations/external_keys/$EXTERNAL_KEY_ID \
    -H 'Content-Type: application/json' \
    -H 'anthropic-version: 2023-06-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY" \
    -d '{}'
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"
}