### Answer Yes, you can insert a message into an ongoing chat using the Create Chat Completion endpoint. [(1) ]() This allows you to send a user message and receive the agent's response:

javascript
import Retell from 'retell-sdk';
const client = new Retell({
  apiKey: 'YOUR_RETELL_API_KEY',
}) ;
const response = await client.chat.createChatCompletion({
  chat_id: 'oBeDLoLOeuAbiuaMFXRtDOLriTJ5tSxD',
  content: 'hi how are you doing?',
}) ;
console.log(response.messages) ;

The

content

field is the user message you want to inject, and the endpoint returns the new messages generated by the agent in response. Note that the chat must have a

chat_status

of

ongoing

to receive new messages and generate responses. [(3) ]()

​ To learn more, see the sources I considered: [[1] Create Chat Completion](https://docs.retellai.com/api-references/create-chat-completion) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer Based on the available documentation, there isn't a direct API endpoint to manually insert a message as the agent (bypassing the AI response generation) . The Create Chat Completion endpoint only allows you to send messages with the

role

of

user

via the

content

field, which then triggers the agent to generate a response. [(1) ]() The response object shows messages can have

role

values of

agent

or

user

, but the API input only accepts user content to prompt agent responses. Check out these potentially useful sources for more details: - [Create Chat Completion]() - [Create Chat]() - [Create chat agent]() If you need this functionality (human takeover/agent impersonation) , you may want to reach out to Retell support directly via [Contact Sales]() to inquire if this is on the roadmap or available through another method. Would you like me to try to provide a general answer based on my broader knowledge?

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

​ To learn more, see the sources I considered: [[1] Create Chat Completion](https://docs.retellai.com/api-references/create-chat-completion) ​