Hi Team, I’m encountering an issue with the voice.clone method in the SDK where the files field does not appear to be handled correctly. When sending a valid .mp3 file (via fs.createReadStream / multipart form-data), the request results in a 500 Internal Server Error from the Retell API. The same file is correctly received on my backend, and the file path/stream is valid. It seems the SDK may not be properly serializing or forwarding the files field in the request. Could you please confirm: 1. The expected format for the files field in voice.clone 2. Whether the current published SDK version fully supports file uploads for this endpoint 3. If there are known issues with multipart handling in this method Happy to provide logs or a minimal reproduction script if needed.

Hi @DeadNecromancer

> async function cloningvoice() { > try { > const filePath = > 'tmp/Vital_Ext_113.mp3'; > const voice_provider = 'platform'; > const voiceResponse = await retellClient.voice.clone({ > voice_name: 'new_voice', > voice_provider: voice_provider, > files: [fs.createReadStream(filePath)], > }); > console.log(voiceResponse); > return voiceResponse; > } catch (error) { > console.error('Error cloning voice:', error); > } > } This is my current actual code that I am using. The file is .mp3 and is actually present in the project directory according to the path mentioned.

Ok @DeadNecromancer I send this to team to look

Thanks a lot.

Hi @DeadNecromancer Can you send me the mp3 file as well?

Hi @DeadNecromancer Team have a fix for this, should be out tomorrow

Thanks a lot

Hello @DeadNecromancer fix is in review

@Shehroze -Support @Retell Thanks for all the help. Much appreciated