diff --git a/build n8n ai agents - 8 hr course/_subsections/lesson-03.org b/build n8n ai agents - 8 hr course/_subsections/lesson-03.org
index 07c541c..670da8e 100644
--- a/build n8n ai agents - 8 hr course/_subsections/lesson-03.org	
+++ b/build n8n ai agents - 8 hr course/_subsections/lesson-03.org	
@@ -15,5 +15,6 @@
 
 #+attr_html: :class playlist
 - [[https://www.youtube.com/watch?v=Ey18PDiaAYI&t=2445s][0:40:45 n8n n8n Data Types]]
+- [[https://www.youtube.com/watch?v=Ey18PDiaAYI&t=2905s][0:48:25 23 Workflow Templates FREE]]
 
 * Notes
diff --git a/build n8n ai agents - 8 hr course/toc.org b/build n8n ai agents - 8 hr course/toc.org
index 4e2ad95..90e130d 100755
--- a/build n8n ai agents - 8 hr course/toc.org	
+++ b/build n8n ai agents - 8 hr course/toc.org	
@@ -58,3 +58,11 @@ Curr: https://youtu.be/Ey18PDiaAYI?si=EYpBQh_b-Xf9FB6i&t=2445
 - [[./_subsections/lesson-01.org][Lesson 01 | Course Agenda, what is an agent]]
 - [[./_subsections/lesson-02.org][Lesson 02 | foundations]]
 - [[./_subsections/lesson-03.org][Lesson 03 | data types]]
+
+
+* Credentials
+
+| service | keys                                                                                                                                                                   |
+|---------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| openai  | ~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~ |
+|         |                                                                                                                                                                        |