diff --git a/dot-env.template b/dot-env.template
index 1e902be60..e31681235 100644
--- a/dot-env.template
+++ b/dot-env.template
@@ -18,6 +18,9 @@ AZURE_DALLE_API_KEY=...
 AZURE_DALLE_ENDPOINT=https://...
 AZURE_DALLE_MODEL=...
 
+# Cartesia
+CARTESIA_API_KEY=...
+
 # Daily
 DAILY_API_KEY=...
 DAILY_SAMPLE_ROOM_URL=https://...
diff --git a/test-requirements.txt b/test-requirements.txt
index 6a92557e0..82a6fbb25 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -2,6 +2,7 @@ aiohttp~=3.10.3
 anthropic~=0.30.0
 azure-cognitiveservices-speech~=1.40.0
 boto3~=1.35.27
+cartesia~=1.3.1
 daily-python~=0.11.0
 deepgram-sdk~=3.5.0
 fal-client~=0.4.1