Does slack have an API?

Related questions

1. Why should I use slack?
2. What are slack files?
3. Is free slack secure?
4. What are the uses of slack?
5. What is a channel on slack?
6. What is slack built with?
7. Can I use slack for free?
8. How secure is slack?
9. Where do slack downloads go?
10. What's the point of slack?

Tags

1. #workspace
2. #tapestry
3. #interface
4. #queries
5. #enacting
6. #slack
7. #querying
8. #platform
9. #complex
10. #information
11. #change
12. #features