diff --git a/api_model_server.rest b/api_model_server.rest
new file mode 100644
index 00000000..e0816a8d
--- /dev/null
+++ b/api_model_server.rest
@@ -0,0 +1,44 @@
+@model_server_endpoint = http://localhost:51000
+@archfc_endpoint = https://api.fc.archgw.com
+
+### prompt gateway request param gathering and function calling
+POST {{model_server_endpoint}}/v1/chat/completions HTTP/1.1
+Content-Type: application/json
+
+{
+  "messages": [
+    {
+      "role": "user",
+      "content": "how is the weather in seattle for next 10 days"
+    }
+  ],
+  "tools": [
+    {
+        "id": "weather-112",
+        "tool_type": "function",
+        "function": {
+          "name": "weather_forecast",
+          "arguments": {"city": "str", "days": "int"}
+        }
+    }
+  ]
+}
+
+
+### prompt gateway request param gathering and function calling
+POST {{archfc_endpoint}}/v1/chat/completions HTTP/1.1
+Content-Type: application/json
+
+{
+  "model": "Arch-Function",
+  "messages": [
+    {
+      "role": "system",
+      "content": "You are a helpful assistant.\n\n# Tools\n\nYou may call one or more functions to assist with the user query.\n\nYou are provided with function signatures within <tools></tools> XML tags:\n<tools>\n{\"id\": \"weather-112\", \"tool_type\": \"function\", \"function\": {\"name\": \"weather_forecast\", \"arguments\": {\"city\": \"str\", \"days\": \"int\"}}}\n</tools>\n\nFor each function call, return a json object with function name and arguments within <tool_call></tool_call> XML tags:\n<tool_call>\n{\"name\": <function-name>, \"arguments\": <args-json-object>}\n</tool_call>"
+    },
+    { "role": "user", "content": "how is the weather in seattle?" },
+    { "role": "assistant", "content": "Of course! " }
+  ],
+  "continue_final_message": true,
+  "add_generation_prompt": false
+}