### Answer --- To set your custom LLM WebSocket URL, you provide the

llm_websocket_url

in your agent configuration. [(1) ]() When a call starts, Retell's server connects to the

llm_websocket_url

you specified in the agent. You can test your WebSocket URL by entering it into the dashboard. [(2) ]() For step-by-step setup instructions, check out: - [Setup WebSocket Server]() [(3) ]() - [Custom LLM Overview]() [(1) ]()

​ To learn more, see the sources I considered: [[1] Custom LLM Overview](https://docs.retellai.com/integrate-llm/overview) [[2] Troubleshooting Guide](https://docs.retellai.com/integrate-llm/troubleshooting) [[3] Setup WebSocket Server](https://docs.retellai.com/integrate-llm/setup-websocket-server) ​

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

@AI Evy I do not see it. What section or where specifically is that "agent configuration"? What section specifically is that under?

### Answer I don't have specific information in my available sources about where to find the

llm_websocket_url

field in the agent configuration or dashboard UI. The sources I have access to cover the

response_engine

configuration (which uses

type: "retell-llm"

with an

llm_id

) , but they don't show the Custom LLM WebSocket URL setting location. [(1) ]() [(2) ]() Check out these potentially useful sources for Custom LLM setup: - [Custom LLM Overview]() - [Setup WebSocket Server]() - [Troubleshooting Guide]() Would you like me to try to provide a general answer based on my knowledge instead?

​ To learn more, see the sources I considered: [[1] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) [[2] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) ​

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

### Answer --- I don't have specific documentation in my available sources showing the exact dashboard location for setting a custom LLM WebSocket URL. Based on the API documentation, the

response_engine

field in agent configuration supports different types, including

"retell-llm"

with an

llm_id

. [(1) ]() [(2) ]() A Discord post mentions: "Configure Retell agent → Custom LLM → paste in URL" [(3) ]() —though this is not official documentation. For the underlying protocol, Retell connects to your WebSocket endpoint at

{your-server-websocket-endpoint}/{call_id}

. [(4) ]() Check out these resources for Custom LLM setup: - [LLM WebSocket]() - [Contact Sales]() - [) Would you like me to try providing a general answer based on my knowledge instead?

​ To learn more, see the sources I considered: [[1] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) [[2] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) [[3] Custom LLMs](https://discord.com/channels/1186424376300679209/1396099334432489524) [[4] LLM WebSocket](https://docs.retellai.com/api-references/llm-websocket) ​

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

### Answer --- I don't have specific documentation in my available sources showing the exact dashboard navigation path for configuring an agent with a custom LLM WebSocket URL. The sources I have cover agent configuration via the API using the

response_engine

field [(1) ]() , and basic agent settings configuration in the dashboard [(2) ]() , but they don't detail the Custom LLM WebSocket URL setting location in the UI. Check out these potentially useful sources: - [Custom LLM Overview]() - [Setup WebSocket Server]() - [Contact Sales]() Would you like me to try providing a general answer based on my knowledge instead?

​ To learn more, see the sources I considered: [[1] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) [[2] Step 2: Configure the basic settings](https://docs.retellai.com/build/single-multi-prompt/configure-basic-settings) ​

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