Add Keen IO Data Analytics

README.md

@@ -309,6 +309,7 @@ Please note a passing build status indicates all listed APIs are available since
 | API.AI | Natural Language Processing | `apikey` | Yes | [Go!](https://api.ai/) |
 | Clarifai | Computer Vision | `OAuth` | Yes | [Go!](https://developer.clarifai.com/) |
 | Cleverbot | Web chat bot | `apikey` | Yes | [Go!](https://www.cleverbot.com/api/) |
+| Keen IO | Data Analytics | `apikey` | Yes | [Go!](https://keen.io/) |
 | Unplugg | Forecasting API for timeseries data | `apikey` | Yes | [Go!](https://unplu.gg/test_api.html) |
 | Wit.ai | Natural Language Processing | `OAuth` | Yes | [Go!](https://wit.ai/) |