Add api.neotastisch.de

README.md

@@ -1343,6 +1343,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Cloudmersive Validate](https://cloudmersive.com/phone-number-validation-API) | Validate international phone numbers | `apiKey` | Yes | Yes |
 | [Phone Specification](https://github.com/azharimm/phone-specs-api) | Rest Api for Phone specifications | No | Yes | Yes |
 | [Veriphone](https://veriphone.io) | Phone number validation & carrier lookup | `apiKey` | Yes | Yes |
+| [WhatsApp](https://github.com/Neotastisch/WhatsApp-API/blob/main/README.md) | Sending/Recieving WhatsApp messages (FREE) | No | Yes | No |
 
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