Add Micro DB (#2536)

README.md

@@ -472,6 +472,7 @@ API | Description | Auth | HTTPS | CORS |
 | [Logs.to](https://logs.to/) | Generate logs | `apiKey` | Yes | Unknown |
 | [Lua Decompiler](https://lua-decompiler.ferib.dev/) | Online Lua 5.1 Decompiler | No | Yes | Yes |
 | [MAC address vendor lookup](https://macaddress.io/api) | Retrieve vendor details and other information regarding a given MAC address or an OUI | `apiKey` | Yes | Yes |
+| [Micro DB](https://m3o.com/db) | Simple database service | `apiKey` | Yes | Unknown |
 | [MicroENV](https://microenv.com/) | Fake Rest API for developers | No | Yes | Unknown |
 | [Mocky](https://designer.mocky.io/) | Mock user defined test JSON for REST API endpoints | No | Yes | Yes |
 | [MY IP](https://www.myip.com/api-docs/) | Get IP address information | No | Yes | Unknown |