diff --git a/R/base_urls.R b/R/base_urls.R
index 41cb50f..5b1b9ee 100644
--- a/R/base_urls.R
+++ b/R/base_urls.R
@@ -6,3 +6,4 @@
 url.completions = "https://api.openai.com/v1/completions"
 url.embeddings = "https://api.openai.com/v1/embeddings"
 url.fine_tune = "https://api.openai.com/v1/fine-tunes"
+url.chat_completions = "https://api.openai.com/v1/chat/completions"