diff --git a/prompt.sh b/prompt.sh
new file mode 100644
index 0000000..723ac9d
--- /dev/null
+++ b/prompt.sh
@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+
+# exit if any command fails
+set -e
+
+usage() {
+  echo "Usage: $(basename $0) <conversation_id> <parent_id> <text>"
+}
+
+if [ ! $# -eq 3 ]; then
+  usage
+  exit 1
+fi
+
+if [ -z $TOKEN ]; then
+  echo "TOKEN must be set with OpenAI authorization bearer token (without Bearer prefix)"
+  exit 1
+fi
+
+if [ -z "$COOKIE" ]; then
+  echo "COOKIE must be set with OpenAI cookies"
+  exit 1
+fi
+
+CONVERSATION_ID=$1
+PARENT_ID=$2
+TEXT="$3"
+
+# apparently, UUIDs are generated by the client :thinking:
+# or this is not really necessary, but I'll do it anyway since that's what the web version does.
+MID=$(python -c 'import uuid;print(uuid.uuid4())')
+
+BODY="{
+  \"action\": \"next\",
+  \"messages\": [
+      {
+          \"id\": \"$MID\",
+          \"author\": {
+              \"role\": \"user\"
+          },
+          \"content\": {
+              \"content_type\": \"text\",
+              \"parts\": [
+                  \"$TEXT\"
+              ]
+          },
+          \"metadata\": {}
+      }
+  ],
+  \"conversation_id\": \"$CONVERSATION_ID\",
+  \"parent_message_id\": \"$PARENT_ID\",
+  \"model\": \"text-davinci-002-render-sha\",
+  \"timezone_offset_min\": -120,
+  \"suggestions\": [],
+  \"history_and_training_disabled\": false,
+  \"arkose_token\": null
+}"
+
+curl 'https://chat.openai.com/backend-api/conversation' \
+  -H 'authority: chat.openai.com' \
+  -H 'accept: text/event-stream' \
+  -H 'accept-language: en-US' \
+  -H "authorization: Bearer $TOKEN" \
+  -H 'content-type: application/json' \
+  -H "cookie: $COOKIE" \
+  -H 'origin: https://chat.openai.com' \
+  -H 'referer: https://chat.openai.com/c/3ad5849d-5a51-4b8e-8974-669c965a3896' \
+  -H 'sec-ch-ua: "Chromium";v="116", "Not)A;Brand";v="24", "Brave";v="116"' \
+  -H 'sec-ch-ua-mobile: ?0' \
+  -H 'sec-ch-ua-platform: "Linux"' \
+  -H 'sec-fetch-dest: empty' \
+  -H 'sec-fetch-mode: cors' \
+  -H 'sec-fetch-site: same-origin' \
+  -H 'sec-gpc: 1' \
+  -H 'user-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36' \
+  --data-raw "$BODY" \
+  --compressed