docs: Adds streetlayer.com
diff --git a/README.md b/README.md
index 74cbd8dfec..3578022f1b 100644
--- a/README.md
+++ b/README.md
@@ -209,6 +209,7 @@ API | Description | Auth | HTTPS | CORS |
 | [NumValidate](https://numvalidate.com) | Open Source phone number validation | No | Yes | Unknown |
 | [numverify](https://numverify.com) | Phone number validation | No | Yes | Unknown |
 | [PurgoMalum](http://www.purgomalum.com) | Content validator against profanity & obscenity | No | No | Unknown |
+| [streetlayer](https://streetlayer.com) | Street address info and validation | `apiKey` | Yes | Unknown |
 | [vatlayer](https://vatlayer.com) | VAT number validation | No | Yes | Unknown |
 
 ### Development

Thank you for taking the time to work on a Pull Request for this project!

To ensure your PR is dealt with swiftly please check the following:

- [x] Your submissions are formatted according to the guidelines in the [contributing guide](CONTRIBUTING.md)
- [x] Your additions are ordered alphabetically
- [x] Your submission has a useful description
- [x] The description does not end with punctuation
- [x] Each table column should be padded with one space on either side
- [x] You have searched the repository for any relevant issues or pull requests
- [x] Any category you are creating has the minimum requirement of 3 items
- [x] All changes have been [squashed][squash-link] into a single commit

[squash-link]: <https://github.com/todotxt/todo.txt-android/wiki/Squash-All-Commits-Related-to-a-Single-Issue-into-a-Single-Commit>
