---
title: External Keys
url: https://platform.claude.com/docs/en/api/typescript/organization/external_keys
---

# External Keys

## Create External Key

`client.organization.externalKeys.create(body, options?): ExternalKey`

**POST** `/v1/organizations/external_keys`

Create an external key config owned by the caller's organization.

### Parameters

- `body: ExternalKeyCreateParams`

  - `provider_config: AWSExternalKeyConfig | GCPExternalKeyConfig | AzureExternalKeyConfigParam`

    KMS provider identity and auth coordinates.

    - `interface AWSExternalKeyConfig`

      - `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.

        maxLength: 2048

      - `region?: string | null`

        AWS region. Derived from `kms_arn` if omitted.

    - `interface GCPExternalKeyConfig`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `interface AzureExternalKeyConfigParam`

      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?: string | 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.

  - `display_name?: string | null`

    Human-friendly display name.

    minLength: 1, maxLength: 255

  - `geo?: "us"`

    Data residency geo. Only `us` is supported.

### Returns

- `interface ExternalKey`

  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).

  - `type: "external_key"`

    default: external_key

  - `id: string`

    Identifier of the external key config. A tagged ID prefixed `ekey_`, or — for organizations on the Claude Platform on AWS — the AWS KMS key ARN.

  - `attachment: ExternalKeyAttachedAttachment | ExternalKeyUnattachedAttachment`

    Whether any workspace uses this config to encrypt its data — counting live and archived workspaces (an archived workspace's data remains encrypted under the config), excluding deleted ones. Only an attached config is used by the encryption path; an `unattached` config is inert and can be deleted.

    - `interface ExternalKeyAttachedAttachment`

      - `type: "attached"`

        default: attached

    - `interface ExternalKeyUnattachedAttachment`

      - `type: "unattached"`

        default: unattached

  - `created_at: string`

    format: date-time

  - `display_name: string | null`

    Human-friendly display name. Null if none was set.

  - `geo: string`

    Data residency geo. Selects which regional validator handles this key's encrypt/decrypt roundtrips.

  - `provider_config: AWSExternalKeyConfig | GCPExternalKeyConfig | AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `interface AWSExternalKeyConfig`

      - `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.

        maxLength: 2048

      - `region?: string | null`

        AWS region. Derived from `kms_arn` if omitted.

    - `interface GCPExternalKeyConfig`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `interface AzureExternalKeyConfig`

      - `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?: string | 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.

  - `updated_at: string`

    format: date-time

### Example

```typescript
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env["ANTHROPIC_API_KEY"] // This is the default and can be omitted
});

const externalKey = await client.organization.externalKeys.create({
  provider_config: {
    kms_arn: "arn:aws:kms:us-east-1:111122223333:key/abcd1234-5678-90ab-cdef-000011112222",
    type: "aws"
  }
});

console.log(externalKey.id);
```

#### Response (200)

```json
{
  "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"
}
```

## List External Keys

`client.organization.externalKeys.list(query?, options?): PageCursor<ExternalKey>`

**GET** `/v1/organizations/external_keys`

List external key configs in the caller's organization.

Results are ordered by creation time (newest first). Use the
`next_page` cursor from the response to fetch subsequent pages.

### Parameters

- `query: ExternalKeyListParams`

  - `limit?: number` (query parameter)

    Number of results per page.

    minimum: 1, maximum: 100

  - `page?: string | null` (query parameter)

    Opaque cursor from a previous response's `next_page`.

### Returns

- `interface ExternalKey`

  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).

  - `type: "external_key"`

    default: external_key

  - `id: string`

    Identifier of the external key config. A tagged ID prefixed `ekey_`, or — for organizations on the Claude Platform on AWS — the AWS KMS key ARN.

  - `attachment: ExternalKeyAttachedAttachment | ExternalKeyUnattachedAttachment`

    Whether any workspace uses this config to encrypt its data — counting live and archived workspaces (an archived workspace's data remains encrypted under the config), excluding deleted ones. Only an attached config is used by the encryption path; an `unattached` config is inert and can be deleted.

    - `interface ExternalKeyAttachedAttachment`

      - `type: "attached"`

        default: attached

    - `interface ExternalKeyUnattachedAttachment`

      - `type: "unattached"`

        default: unattached

  - `created_at: string`

    format: date-time

  - `display_name: string | null`

    Human-friendly display name. Null if none was set.

  - `geo: string`

    Data residency geo. Selects which regional validator handles this key's encrypt/decrypt roundtrips.

  - `provider_config: AWSExternalKeyConfig | GCPExternalKeyConfig | AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `interface AWSExternalKeyConfig`

      - `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.

        maxLength: 2048

      - `region?: string | null`

        AWS region. Derived from `kms_arn` if omitted.

    - `interface GCPExternalKeyConfig`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `interface AzureExternalKeyConfig`

      - `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?: string | 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.

  - `updated_at: string`

    format: date-time

### Example

```typescript
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env["ANTHROPIC_API_KEY"] // This is the default and can be omitted
});

// Automatically fetches more pages as needed.
for await (const externalKey of client.organization.externalKeys.list()) {
  console.log(externalKey.id);
}
```

#### Response (200)

```json
{
  "data": [
    {
      "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"
    }
  ],
  "next_page": "next_page"
}
```

## Get External Key

`client.organization.externalKeys.retrieve(externalKeyID, options?): ExternalKey`

**GET** `/v1/organizations/external_keys/{external_key_id}`

Retrieve a single external key config in the caller's organization by ID.

### Parameters

- `externalKeyID: string` (path parameter)

  ID of the External Key.

  maxLength: 2048

### Returns

- `interface ExternalKey`

  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).

  - `type: "external_key"`

    default: external_key

  - `id: string`

    Identifier of the external key config. A tagged ID prefixed `ekey_`, or — for organizations on the Claude Platform on AWS — the AWS KMS key ARN.

  - `attachment: ExternalKeyAttachedAttachment | ExternalKeyUnattachedAttachment`

    Whether any workspace uses this config to encrypt its data — counting live and archived workspaces (an archived workspace's data remains encrypted under the config), excluding deleted ones. Only an attached config is used by the encryption path; an `unattached` config is inert and can be deleted.

    - `interface ExternalKeyAttachedAttachment`

      - `type: "attached"`

        default: attached

    - `interface ExternalKeyUnattachedAttachment`

      - `type: "unattached"`

        default: unattached

  - `created_at: string`

    format: date-time

  - `display_name: string | null`

    Human-friendly display name. Null if none was set.

  - `geo: string`

    Data residency geo. Selects which regional validator handles this key's encrypt/decrypt roundtrips.

  - `provider_config: AWSExternalKeyConfig | GCPExternalKeyConfig | AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `interface AWSExternalKeyConfig`

      - `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.

        maxLength: 2048

      - `region?: string | null`

        AWS region. Derived from `kms_arn` if omitted.

    - `interface GCPExternalKeyConfig`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `interface AzureExternalKeyConfig`

      - `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?: string | 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.

  - `updated_at: string`

    format: date-time

### Example

```typescript
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env["ANTHROPIC_API_KEY"] // This is the default and can be omitted
});

const externalKey = await client.organization.externalKeys.retrieve("external_key_id");

console.log(externalKey.id);
```

#### Response (200)

```json
{
  "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"
}
```

## Update External Key

`client.organization.externalKeys.update(externalKeyID, body, options?): ExternalKey`

**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

- `externalKeyID: string` (path parameter)

  ID of the External Key.

  maxLength: 2048

- `body: ExternalKeyUpdateParams`

  - `display_name?: string | null`

    Human-friendly display name.

    minLength: 1, maxLength: 255

  - `geo?: "us" | null`

    Data residency geo. Only `us` is supported.

  - `provider_config?: AWSExternalKeyConfig | GCPExternalKeyConfig | AzureExternalKeyConfigParam | null`

    KMS provider identity and auth coordinates.

    - `interface AWSExternalKeyConfig`

      - `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.

        maxLength: 2048

      - `region?: string | null`

        AWS region. Derived from `kms_arn` if omitted.

    - `interface GCPExternalKeyConfig`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `interface AzureExternalKeyConfigParam`

      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?: string | 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

- `interface ExternalKey`

  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).

  - `type: "external_key"`

    default: external_key

  - `id: string`

    Identifier of the external key config. A tagged ID prefixed `ekey_`, or — for organizations on the Claude Platform on AWS — the AWS KMS key ARN.

  - `attachment: ExternalKeyAttachedAttachment | ExternalKeyUnattachedAttachment`

    Whether any workspace uses this config to encrypt its data — counting live and archived workspaces (an archived workspace's data remains encrypted under the config), excluding deleted ones. Only an attached config is used by the encryption path; an `unattached` config is inert and can be deleted.

    - `interface ExternalKeyAttachedAttachment`

      - `type: "attached"`

        default: attached

    - `interface ExternalKeyUnattachedAttachment`

      - `type: "unattached"`

        default: unattached

  - `created_at: string`

    format: date-time

  - `display_name: string | null`

    Human-friendly display name. Null if none was set.

  - `geo: string`

    Data residency geo. Selects which regional validator handles this key's encrypt/decrypt roundtrips.

  - `provider_config: AWSExternalKeyConfig | GCPExternalKeyConfig | AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `interface AWSExternalKeyConfig`

      - `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.

        maxLength: 2048

      - `region?: string | null`

        AWS region. Derived from `kms_arn` if omitted.

    - `interface GCPExternalKeyConfig`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `interface AzureExternalKeyConfig`

      - `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?: string | 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.

  - `updated_at: string`

    format: date-time

### Example

```typescript
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env["ANTHROPIC_API_KEY"] // This is the default and can be omitted
});

const externalKey = await client.organization.externalKeys.update("external_key_id");

console.log(externalKey.id);
```

#### Response (200)

```json
{
  "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"
}
```

## Delete External Key

`client.organization.externalKeys.delete(externalKeyID, options?): ExternalKeyDeleteResponse`

**DELETE** `/v1/organizations/external_keys/{external_key_id}`

Delete an external key config.

The request is rejected if any workspace still references this config.

### Parameters

- `externalKeyID: string` (path parameter)

  ID of the External Key.

  maxLength: 2048

### Returns

- `interface ExternalKeyDeleteResponse`

  - `type: "external_key_deleted"`

    default: external_key_deleted

  - `id: string`

    ID of the deleted External Key.

### Example

```typescript
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env["ANTHROPIC_API_KEY"] // This is the default and can be omitted
});

const externalKey = await client.organization.externalKeys.delete("external_key_id");

console.log(externalKey.id);
```

#### Response (200)

```json
{
  "id": "ekey_01AbCdEfGhIjKlMnOpQrStUv",
  "type": "external_key_deleted"
}
```

## Validate External Key

`client.organization.externalKeys.validate(externalKeyID, options?): ExternalKeyValidateResponse`

**POST** `/v1/organizations/external_keys/{external_key_id}/validate`

Validate an external key config against the customer's KMS.

Anthropic performs an encrypt/decrypt roundtrip against the configured
KMS key and waits up to 30 seconds for the result. The response status is
`success` if the roundtrip succeeded, or `failure` with an error
message if it failed or timed out.

### Parameters

- `externalKeyID: string` (path parameter)

  ID of the External Key.

  maxLength: 2048

### Returns

- `interface ExternalKeyValidateResponse`

  Result of a validation roundtrip against the customer's KMS.

  HTTP 200 for both outcomes — the operation completed; `status` says
  whether the key works.

  - `type: "external_key_validation"`

    default: external_key_validation

  - `error: string | null`

    Error message when status is `failure`. Null otherwise.

  - `status: "failure" | "success"`

    `success` — encrypt/decrypt roundtrip succeeded. `failure` — the roundtrip failed or timed out; see `error`.

    - `"failure"`

    - `"success"`

### Example

```typescript
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env["ANTHROPIC_API_KEY"] // This is the default and can be omitted
});

const response = await client.organization.externalKeys.validate("external_key_id");

console.log(response.error);
```

#### Response (200)

```json
{
  "error": "error",
  "status": "failure",
  "type": "external_key_validation"
}
```

## Domain types

### AWS External Key Config

- `interface AWSExternalKeyConfig`

  - `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.

    maxLength: 2048

  - `region?: string | null`

    AWS region. Derived from `kms_arn` if omitted.

### Azure External Key Config

- `interface AzureExternalKeyConfig`

  - `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?: string | 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.

### Azure External Key Config Param

- `interface AzureExternalKeyConfigParam`

  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?: string | 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.

### External Key

- `interface ExternalKey`

  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).

  - `type: "external_key"`

    default: external_key

  - `id: string`

    Identifier of the external key config. A tagged ID prefixed `ekey_`, or — for organizations on the Claude Platform on AWS — the AWS KMS key ARN.

  - `attachment: ExternalKeyAttachedAttachment | ExternalKeyUnattachedAttachment`

    Whether any workspace uses this config to encrypt its data — counting live and archived workspaces (an archived workspace's data remains encrypted under the config), excluding deleted ones. Only an attached config is used by the encryption path; an `unattached` config is inert and can be deleted.

    - `interface ExternalKeyAttachedAttachment`

      - `type: "attached"`

        default: attached

    - `interface ExternalKeyUnattachedAttachment`

      - `type: "unattached"`

        default: unattached

  - `created_at: string`

    format: date-time

  - `display_name: string | null`

    Human-friendly display name. Null if none was set.

  - `geo: string`

    Data residency geo. Selects which regional validator handles this key's encrypt/decrypt roundtrips.

  - `provider_config: AWSExternalKeyConfig | GCPExternalKeyConfig | AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `interface AWSExternalKeyConfig`

      - `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.

        maxLength: 2048

      - `region?: string | null`

        AWS region. Derived from `kms_arn` if omitted.

    - `interface GCPExternalKeyConfig`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `interface AzureExternalKeyConfig`

      - `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?: string | 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.

  - `updated_at: string`

    format: date-time

### External Key Attached Attachment

- `interface ExternalKeyAttachedAttachment`

  - `type: "attached"`

    default: attached

### External Key Unattached Attachment

- `interface ExternalKeyUnattachedAttachment`

  - `type: "unattached"`

    default: unattached

### GCP External Key Config

- `interface GCPExternalKeyConfig`

  - `type: "gcp"`

  - `key_name: string`

    Full resource name of the Cloud KMS key.

### External Key Delete Response

- `interface ExternalKeyDeleteResponse`

  - `type: "external_key_deleted"`

    default: external_key_deleted

  - `id: string`

    ID of the deleted External Key.

### External Key Validate Response

- `interface ExternalKeyValidateResponse`

  Result of a validation roundtrip against the customer's KMS.

  HTTP 200 for both outcomes — the operation completed; `status` says
  whether the key works.

  - `type: "external_key_validation"`

    default: external_key_validation

  - `error: string | null`

    Error message when status is `failure`. Null otherwise.

  - `status: "failure" | "success"`

    `success` — encrypt/decrypt roundtrip succeeded. `failure` — the roundtrip failed or timed out; see `error`.

    - `"failure"`

    - `"success"`
