How to: Data Validation
API | Description | Auth | HTTPS | CORS |
|---|:---|:---|:---|:---|
| [Lob.com](https://lob.com/) | US Address Verification | `apiKey` | Yes | Unknown | |
| [Postman Echo](https://www.postman-echo.com) | Test api server to receive and return value from HTTP method | No | Yes | Unknown | |
| [PurgoMalum](http://www.purgomalum.com) | Content validator against profanity & obscenity | No | No | Unknown | |
| [US Autocomplete](https://www.smarty.com/docs/cloud/us-autocomplete-pro-api) | Enter address data quickly with real-time address suggestions | `apiKey` | Yes | Yes | |
| [US Extract](https://www.smarty.com/products/apis/us-extract-api) | Extract postal addresses from any text including emails | `apiKey` | Yes | Yes | |
| [US Street Address](https://www.smarty.com/docs/cloud/us-street-api) | Validate and append data for any US postal address | `apiKey` | Yes | Yes | |
| [vatlayer](https://vatlayer.com/documentation) | VAT number validation | `apiKey` | Yes | Unknown | |

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