# List engines and output types

`GET https://api-vod-express.syncwords.com/v1/enums/{name}`

List engines, voice providers and output kinds

The `@type` values one part of the config takes on a build, with their titles.

**Guide:** [Config reference](/vod-express/configuration/reference)

## Parameters

| Name | In | Type | Required | Description |
|---|---|---|---|---|
| `name` | path | enum: source-types, destination-types, transcription-types, translation-engines, tts-engines, output-types | yes | Which choice: `source-types` (`sourceMedia.@type`), `destination-types` (`outputs[].@type`), `transcription-types` (`transcription.@type`), `translation-engines` (`translations[].engine.@type`), `tts-engines` (`translations[].ttsOptions.provider.@type`), `output-types` (`outputs[].items[].@type`). |
| `buildVersion` | query | string | no | A build from `GET /build-versions`. Left out, your account’s default build. |

## Responses

### 200

OK (`tts-engines`)

Example:

```json
{
  "data": [
    {
      "type": "Amazon",
      "title": "Amazon Polly",
      "description": null
    },
    {
      "type": "Azure",
      "title": "Azure",
      "description": null
    },
    {
      "type": "Deepdub",
      "title": "Deepdub Text-to-Speech",
      "description": null
    },
    {
      "type": "Google",
      "title": "Google Text-to-Speech",
      "description": null
    },
    {
      "type": "MultiVoice",
      "title": "Multi-voice",
      "description": null
    },
    {
      "type": "Sarvam",
      "title": "Sarvam Voice Cloning",
      "description": null
    }
  ],
  "meta": {
    "buildVersion": "0.9.0-alpha1-2026-10-20T14-10Z-3f05aa"
  }
}
```

Schema:

```json
{
  "type": "object",
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/EnumValue"
      }
    },
    "meta": {
      "type": "object",
      "properties": {
        "buildVersion": {
          "type": "string"
        }
      }
    }
  }
}
```

### 401

No token, or an expired or unknown one: `unauthenticated`.

Example:

```json
{
  "message": "Unauthenticated.",
  "code": "unauthenticated"
}
```

Schema:

```json
{
  "$ref": "#/components/schemas/Error"
}
```

### 403

VOD Express is not available to the account: switched off for it (`vod_express_not_enabled`), or the account is restricted — its access revoked, its trial expired or used up (`account_restricted`, with the reason in `message`).

Example:

```json
{
  "message": [
    "VOD Express is not enabled for your account."
  ],
  "code": "vod_express_not_enabled"
}
```

Schema:

```json
{
  "$ref": "#/components/schemas/Error"
}
```

### 404

No such list: `not_found`.

Schema:

```json
{
  "$ref": "#/components/schemas/Error"
}
```

### 429

Rate limited: `too_many_requests`. Wait the seconds `Retry-After` says, then repeat the call.

Example:

```json
{
  "message": [
    "Too Many Attempts."
  ],
  "code": "too_many_requests"
}
```

Schema:

```json
{
  "$ref": "#/components/schemas/Error"
}
```

## Schemas

### EnumValue

`#/components/schemas/EnumValue`

```json
{
  "type": "object",
  "required": [
    "type",
    "title",
    "description"
  ],
  "properties": {
    "type": {
      "type": "string",
      "description": "The `@type` to write."
    },
    "title": {
      "type": [
        "string",
        "null"
      ]
    },
    "description": {
      "type": [
        "string",
        "null"
      ]
    }
  }
}
```

### Error

`#/components/schemas/Error`

```json
{
  "type": "object",
  "required": [
    "message",
    "code"
  ],
  "properties": {
    "message": {
      "description": "For people. A string, or an array of one string on some statuses: read it as `Array.isArray(m) ? m[0] : m`.",
      "oneOf": [
        {
          "type": "string"
        },
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      ]
    },
    "code": {
      "description": "For programs: stable, one per situation. See the Errors guide.",
      "enum": [
        "bad_request",
        "invalid_output_path",
        "invalid_idempotency_key",
        "unauthenticated",
        "invalid_credentials",
        "forbidden",
        "vod_express_not_enabled",
        "account_restricted",
        "not_found",
        "project_not_found",
        "file_not_found",
        "file_meta_not_found",
        "output_not_found",
        "feed_not_found",
        "upload_not_found",
        "webhook_not_found",
        "webhook_delivery_not_found",
        "aws_access_not_provisioned",
        "storage_connection_not_found",
        "method_not_allowed",
        "conflict",
        "file_exists",
        "project_reads_feed",
        "project_reads_folder",
        "file_processing",
        "project_config_locked",
        "idempotency_in_progress",
        "storage_connection_in_use",
        "payload_too_large",
        "unsupported_media_type",
        "validation_failed",
        "service_start_failed",
        "idempotency_key_reused",
        "webhook_limit_reached",
        "storage_failed",
        "storage_connection_check_failed",
        "storage_connection_folder_only",
        "storage_prefix_taken",
        "build_without_storage_connections",
        "build_has_no_schema",
        "too_many_requests",
        "internal_error",
        "bad_gateway",
        "service_stop_failed",
        "aws_access_failed",
        "platform_unavailable",
        "service_unavailable",
        "build_list_unavailable"
      ]
    },
    "errors": {
      "type": "object",
      "description": "On a 422: each field’s messages, keyed by field name, or by JSON pointer inside `config`.",
      "additionalProperties": {
        "type": "array",
        "items": {
          "type": "string"
        }
      }
    }
  }
}
```