Add FullHunt API

Add FullHunt API for searching internet attack surface database

README.md

@@ -1278,6 +1278,7 @@ API | Description | Auth | HTTPS | CORS |
 | [FilterLists](https://filterlists.com) | Lists of filters for adblockers and firewalls | No | Yes | Unknown |
 | [FingerprintJS Pro](https://dev.fingerprintjs.com/docs) | Fraud detection API offering highly accurate browser fingerprinting | `apiKey` | Yes | Yes |
 | [FraudLabs Pro](https://www.fraudlabspro.com/developer/api/screen-order) | Screen order information using AI to detect frauds | `apiKey` | Yes | Unknown |
+| [FullHunt](https://api-docs.fullhunt.io/#introduction) | Searchable attack surface database of the entire internet | `apiKey` | Yes | Unknown |
 | [GitGuardian](https://api.gitguardian.com/doc) | Scan files for secrets (API Keys, database credentials) | `apiKey` | Yes | No |
 | [HackerOne](https://api.hackerone.com/) | The industry’s first hacker API that helps increase productivity towards creative bug bounty hunting | `apiKey` | Yes | Unknown |
 | [HaveIBeenPwned](https://haveibeenpwned.com/API/v3) | Passwords which have previously been exposed in data breaches | `apiKey` | Yes | Unknown |