diff --git a/README.md b/README.md
index c2a02ce..7fc09d4 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # natbot
 
-Drive a browser with GPT-3
+Drive a browser with GPT-3 or [Text-Generator.io](https://text-generator.io)
 
 Here's a demo: https://twitter.com/natfriedman/status/1575631194032549888
 
@@ -12,3 +12,19 @@ Lots of ideas for improvement:
 - Let the agent use multiple tabs and switch between them
 
 Improvements welcome!
+
+
+### Running
+
+#### Setup
+
+```
+pip install -r requirements.txt
+playwright install
+```
+
+#### Run
+
+```
+python natbot.py
+```
diff --git a/natbot.py b/natbot.py
index 9842fbf..3181661 100755
--- a/natbot.py
+++ b/natbot.py
@@ -536,7 +536,11 @@ def add_to_hash_tree(hash_tree, tag, node_id, node_name, parent_id):
 ):
 	_crawler = Crawler()
 	openai.api_key = os.environ.get("OPENAI_API_KEY")
-
+	# use text-generator.io instead of OpenAI if there is a environment var set
+	text_generator_api_key = os.getenv("TEXTGENERATOR_API_KEY")
+	if text_generator_api_key:
+		openai.api_key = text_generator_api_key
+		openai.api_base = "https://api.text-generator.io"
 	def print_help():
 		print(
 			"(g) to visit url\n(u) scroll up\n(d) scroll dow\n(c) to click\n(t) to type\n" +
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..5c484d4
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,4 @@
+
+openai
+playwright
+