Then you should use an execute code node to send the user's question ( {in-0} in StackAI) and receive the answer ({out-0}) Use this piece of code: const url = "https://www.stack-inference.com/run_deployed_flow?flow_id=64d75946f9672d1a070317f2&org=584fdd5b-f3c3-4be4-9a8f-62787e87b2a1" const headers = { Authorization: "Bearer YOURAPIKEY", "Content-Type": "application/json" } const data = { "in-0": workflow.userQuestion } const response = await axios.post(url, data, { headers }) if (response.status === 200) { workflow.aiResponse = _.get(response, "data.out-0", "") }