diff --git a/README.md b/README.md
index ce50e13e..66103844 100644
--- a/README.md
+++ b/README.md
@@ -1029,6 +1029,7 @@ API | Description | Auth | HTTPS | CORS |
 | [HaveIBeenPwned](https://haveibeenpwned.com/API/v3) | Passwords which have previously been exposed in data breaches | `apiKey` | Yes | Unknown |
 | [Intelligence X](https://github.com/IntelligenceX/SDK/blob/master/Intelligence%20X%20API.pdf) | Perform OSINT via Intelligence X | `apiKey` | Yes | Unknown |
 | [LoginRadius](https://www.loginradius.com/docs/) | Managed User Authentication Service | `apiKey` | Yes | Yes |
+| [Microsoft Security Response Center (MSRC)](https://msrc.microsoft.com/report/developer) | Programmatic interfaces to engage with the Microsoft Security Response Center (MSRC) | No | Yes | Unknown |
 | [Mozilla http scanner](https://github.com/mozilla/http-observatory/blob/master/httpobs/docs/api.md) | Mozilla observatory http scanner | No | Yes | Unknown |
 | [Mozilla tls scanner](https://github.com/mozilla/tls-observatory#api-endpoints) | Mozilla observatory tls scanner | No | Yes | Unknown |
 | [National Vulnerability Database](https://nvd.nist.gov/vuln/Data-Feeds/JSON-feed-changelog) | U.S. National Vulnerability Database | No | Yes | Unknown |