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

# External Keys

## Create External Key

`$ ant organization:external-keys create`

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

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

### Parameters

- `--provider-config: AWSExternalKeyConfig or GCPExternalKeyConfig or AzureExternalKeyConfigParam`

  KMS provider identity and auth coordinates.

- `--display-name: optional string`

  Human-friendly display name.

  minLength: 1, maxLength: 255

- `--geo: optional "us"`

  Data residency geo. Only `us` is supported.

### Returns

- `external_key: object`

  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"`

  - `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 or 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.

    - `external_key_attached_attachment: object`

      - `type: "attached"`

    - `external_key_unattached_attachment: object`

      - `type: "unattached"`

  - `created_at: string`

    format: date-time

  - `display_name: string`

    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 or GCPExternalKeyConfig or AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `aws_external_key_config: object`

      - `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: optional string`

        AWS region. Derived from `kms_arn` if omitted.

    - `gcp_external_key_config: object`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `azure_external_key_config: object`

      - `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`

        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

```bash
ant organization:external-keys create \
  --api-key my-anthropic-api-key \
  --provider-config '{kms_arn: arn:aws:kms:us-east-1:111122223333:key/abcd1234-5678-90ab-cdef-000011112222, type: aws}'
```

#### 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

`$ ant organization:external-keys list`

**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

- `--limit: optional number` (query parameter)

  Number of results per page.

  minimum: 1, maximum: 100

- `--page: optional string` (query parameter)

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

### Returns

- `ExternalKeyListResponse: object`

  Opaque-cursor page of external keys, ordered by creation time (newest first).

  - `data: array of ExternalKey`

    - `type: "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 or 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.

      - `external_key_attached_attachment: object`

        - `type: "attached"`

      - `external_key_unattached_attachment: object`

        - `type: "unattached"`

    - `created_at: string`

      format: date-time

    - `display_name: string`

      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 or GCPExternalKeyConfig or AzureExternalKeyConfig`

      KMS provider identity and auth coordinates.

      - `aws_external_key_config: object`

        - `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: optional string`

          AWS region. Derived from `kms_arn` if omitted.

      - `gcp_external_key_config: object`

        - `type: "gcp"`

        - `key_name: string`

          Full resource name of the Cloud KMS key.

      - `azure_external_key_config: object`

        - `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`

          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

  - `next_page: string`

    Opaque cursor for the next page, or null if no more results. Pass as `?page=` to fetch the next page.

### Example

```bash
ant organization:external-keys list \
  --api-key my-anthropic-api-key
```

#### 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

`$ ant organization:external-keys retrieve`

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

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

### Parameters

- `--external-key-id: string` (path parameter)

  ID of the External Key.

  maxLength: 2048

### Returns

- `external_key: object`

  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"`

  - `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 or 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.

    - `external_key_attached_attachment: object`

      - `type: "attached"`

    - `external_key_unattached_attachment: object`

      - `type: "unattached"`

  - `created_at: string`

    format: date-time

  - `display_name: string`

    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 or GCPExternalKeyConfig or AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `aws_external_key_config: object`

      - `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: optional string`

        AWS region. Derived from `kms_arn` if omitted.

    - `gcp_external_key_config: object`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `azure_external_key_config: object`

      - `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`

        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

```bash
ant organization:external-keys retrieve \
  --api-key my-anthropic-api-key \
  --external-key-id external_key_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

`$ ant organization:external-keys update`

**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

- `--external-key-id: string` (path parameter)

  ID of the External Key.

  maxLength: 2048

- `--display-name: optional string`

  Human-friendly display name.

  minLength: 1, maxLength: 255

- `--geo: optional "us"`

  Data residency geo. Only `us` is supported.

- `--provider-config: optional AWSExternalKeyConfig or GCPExternalKeyConfig or AzureExternalKeyConfigParam`

  KMS provider identity and auth coordinates.

### Returns

- `external_key: object`

  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"`

  - `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 or 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.

    - `external_key_attached_attachment: object`

      - `type: "attached"`

    - `external_key_unattached_attachment: object`

      - `type: "unattached"`

  - `created_at: string`

    format: date-time

  - `display_name: string`

    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 or GCPExternalKeyConfig or AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `aws_external_key_config: object`

      - `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: optional string`

        AWS region. Derived from `kms_arn` if omitted.

    - `gcp_external_key_config: object`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `azure_external_key_config: object`

      - `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`

        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

```bash
ant organization:external-keys update \
  --api-key my-anthropic-api-key \
  --external-key-id external_key_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

`$ ant organization:external-keys delete`

**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

- `--external-key-id: string` (path parameter)

  ID of the External Key.

  maxLength: 2048

### Returns

- `OrganizationExternalKeyDeleteResponse: object`

  - `type: "external_key_deleted"`

  - `id: string`

    ID of the deleted External Key.

### Example

```bash
ant organization:external-keys delete \
  --api-key my-anthropic-api-key \
  --external-key-id external_key_id
```

#### Response (200)

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

## Validate External Key

`$ ant organization:external-keys validate`

**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

- `--external-key-id: string` (path parameter)

  ID of the External Key.

  maxLength: 2048

### Returns

- `OrganizationExternalKeyValidateResponse: object`

  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"`

  - `error: string`

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

  - `status: "failure" or "success"`

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

    - `"failure"`

    - `"success"`

### Example

```bash
ant organization:external-keys validate \
  --api-key my-anthropic-api-key \
  --external-key-id external_key_id
```

#### Response (200)

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

## Domain types

### AWS External Key Config

- `aws_external_key_config: object`

  - `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: optional string`

    AWS region. Derived from `kms_arn` if omitted.

### Azure External Key Config

- `azure_external_key_config: object`

  - `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`

    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

- `azure_external_key_config_param: object`

  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`

    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

- `external_key: object`

  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"`

  - `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 or 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.

    - `external_key_attached_attachment: object`

      - `type: "attached"`

    - `external_key_unattached_attachment: object`

      - `type: "unattached"`

  - `created_at: string`

    format: date-time

  - `display_name: string`

    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 or GCPExternalKeyConfig or AzureExternalKeyConfig`

    KMS provider identity and auth coordinates.

    - `aws_external_key_config: object`

      - `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: optional string`

        AWS region. Derived from `kms_arn` if omitted.

    - `gcp_external_key_config: object`

      - `type: "gcp"`

      - `key_name: string`

        Full resource name of the Cloud KMS key.

    - `azure_external_key_config: object`

      - `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`

        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

- `external_key_attached_attachment: object`

  - `type: "attached"`

### External Key Unattached Attachment

- `external_key_unattached_attachment: object`

  - `type: "unattached"`

### GCP External Key Config

- `gcp_external_key_config: object`

  - `type: "gcp"`

  - `key_name: string`

    Full resource name of the Cloud KMS key.
