From cd7169fbe72f0df3195f016010fad01f55d8e28c Mon Sep 17 00:00:00 2001
From: Harrison Chase <hw.chase.17@gmail.com>
Date: Sun, 7 Jan 2024 22:10:59 -0800
Subject: [PATCH] cr

---
 README.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/README.md b/README.md
index 35e47d591..2599d6e82 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,22 @@ We will also want to install some LangChain packages, as well as [Tavily](https:
 ```shell
 pip install -U langchain langchain_openai langchainhub tavily-python
 ```
+
+We also need to export some environment variables needed for our agent.
+
+```shell
+export OPENAI_API_KEY=sk-...
+export TAVILY_API_KEY=tvly-...
+```
+
+Optionally, we can set up [LangSmith](https://docs.smith.langchain.com/) for best-in-class observability.
+
+```shell
+export LANGCHAIN_TRACING_V2="true"
+export LANGCHAIN_API_KEY=ls__...
+export LANGCHAIN_ENDPOINT=https://api.langchain.plus
+```
+
 ### Define the LangChain Agent
 
 This is the LangChain agent.