diff --git a/README.md b/README.md
index c07e583a..6fe7f830 100644
--- a/README.md
+++ b/README.md
@@ -219,6 +219,7 @@ Table of Contents
   * [ScrapingNinja](https://www.scrapingninja.co/) — Handle JS rendering, Chrome Headless, Proxy rotation and CAPTCHAs solving all in one place. The first 1000 are free of charge, no credit card required.
   * [Sheetson](https://sheetson.com) - Instantly turn any Google Sheets into RESTful API. Free plan available.
   * [shrtcode API](https://shrtco.de/docs) - Free URL Shortening API without authorisation and no request limits.
+  * [Similar Words API](https://word-simi.herokuapp.com/) — An API to find similar words, has vocabulary of about 4Million words.
   * [Sofodata](https://www.sofodata.com/) - Create secure RESTful APIs from CSV files. Upload a CSV file and instantly access the data via its API allowing faster application development. Free plan includes 2 APIs and 2,500 API calls per month. No credit card required.
   * [tamber](https://tamber.com) — Put deep-learning powered recommendations in your app. Free 5k monthly active users.
   * [Time Door](https://timedoor.io) - A time series analysis API.