Fetches a specified version of a **Config**.

For more details on configuration options and how to configure EVI, see our [configuration guide](https://dev.hume.ai/docs/speech-to-speech-evi/configuration).

### Authentication

X-Hume-Api-Keystring

API Key authentication via header

### Path parameters

- **id** `string` Required `format: "uuid"`
  - Identifier for a Config. Formatted as a UUID.

- **version** `integer` Required
  - Version number for a Config.

Configs, Prompts, Custom Voices, and Tools are versioned. This versioning system supports iterative development, allowing you to progressively refine configurations and revert to previous versions if needed.

Version numbers are integer values representing different iterations of the Config. Each update to the Config increments its version number.

### Response

- **Success**

- **builtin_tools** `list of objects or null`
  - List of built-in tools associated with this Config.

- **created_on** `long`
  - Time at which the Config was created. Measured in seconds since the Unix epoch.

- **ellm_model** `object`
  - A specific eLLM Model configuration

- **event_messages** `object`
  - Collection of event messages returned by the server.

Event messages are sent by the server when specific events occur during a chat session. These messages are used to configure behaviors for EVI, such as controlling how EVI starts a new conversation.

- **evi_version** `string`
  - Specifies the EVI version to use. See our [EVI Version Guide](https://dev.hume.ai/docs/speech-to-speech-evi/configuration/evi-version) for differences between versions.

**We’re officially sunsetting EVI versions 1 and 2 on August 30, 2025**. To keep things running smoothly, be sure to [migrate to EVI 3](https://dev.hume.ai/docs/speech-to-speech-evi/configuration/evi-version#migrating-to-evi-3) before then.

- **id** `string`
  - Identifier for a Config. Formatted as a UUID.

- **interruption** `object`
  - An interruption configuration returned from the server

- **language_model** `object`
  - A specific LanguageModel

- **modified_on** `long`
  - Time at which the Config was last modified. Measured in seconds since the Unix epoch.

- **name** `string`
  - Name applied to all versions of a particular Config.

- **nudges** `object`
  - A specific nudge configuration returned from the server

- **prompt** `object`
  - A specific prompt version returned from the server

- **timeouts** `object`
  - Collection of timeout specifications returned by the server.

Timeouts are sent by the server when specific time-based events occur during a chat session. These specifications set the inactivity timeout and the maximum duration an EVI WebSocket connection can stay open before it is automatically disconnected.

- **tools** `list of objects or null`
  - List of user-defined tools associated with this Config.

- **turn_detection** `object`
  - A turn detection configuration returned from the server

- **version** `integer`
  - Version number for a Config.

- **version_description** `string or null`
  - An optional description of the Config version.

- **voice** `object`
  - An Octave voice available for text-to-speech

- **webhooks** `list of objects or null`
  - Map of webhooks associated with this config.