Your issue sounds similar to a known problem where agents exist and function in production but don’t appear in the dashboard or API responses(1).
Based on the available documentation, I can confirm that you can verify your agent exists by using the API to retrieve it directly with your agent_id(2).
Try this API call to confirm the agent still exists:
import Retell from 'retell-sdk';
const client = new Retell({
apiKey: 'YOUR_RETELL_API_KEY',
});
const agentResponse = await client.agent.retrieve('agent_e1867490d5535e960e6c95d02e');
console.log(agentResponse.agent_id);