Add anonymizer property to IpAddress interface

CHANGELOG.md

@@ -1,10 +1,13 @@
 CHANGELOG
 =========
 
-8.3.0
+8.3.0 (2026-01-20)
 ------------------
 
 * Added `Banquest`, `SummitPayments`, and `Yaadpay` to the `Processor` enum.
+* Added `anonymizer` property to the `IpAddress` interface. This contains
+  information about whether the IP address is an anonymous network, including
+  confidence score, VPN provider name, and various anonymizer type flags.
 
 8.2.1 (2025-11-25)
 ------------------

README.md

@@ -299,6 +299,6 @@ This API uses [Semantic Versioning](https://semver.org/).
 
 ## Copyright and License
 
-This software is Copyright (c) 2019-2025 by MaxMind, Inc.
+This software is Copyright (c) 2019-2026 by MaxMind, Inc.
 
 This is free software, licensed under the Apache License, Version 2.0.

fixtures/insights.json

@@ -25,6 +25,17 @@
             "reason": "Suspicious activity has been seen on this IP address across minFraud customers."
           }
         ],
+        "anonymizer": {
+          "confidence": 99,
+          "is_anonymous": true,
+          "is_anonymous_vpn": true,
+          "is_hosting_provider": true,
+          "is_public_proxy": true,
+          "is_residential_proxy": false,
+          "is_tor_exit_node": true,
+          "network_last_seen": "2025-01-15",
+          "provider_name": "TestVPN"
+        },
         "city": {
           "confidence": 25,
           "geoname_id": 54321,

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@maxmind/minfraud-api-node",
-  "version": "8.2.1",
+  "version": "8.3.0",
   "description": "Node.js API for MaxMind minFraud web services",
   "main": "dist/src/index.js",
   "homepage": "https://github.com/maxmind/minfraud-api-node",

src/response/models/insights.spec.ts

@@ -63,4 +63,25 @@ describe('Insights()', () => {
     const model = new Insights(response as InsightsResponse);
     expect(model.email?.domain?.visit?.hasRedirect).toBe(false);
   });
+
+  it('allows /ip_address/anonymizer to be accessed', () => {
+    const model = new Insights(response as InsightsResponse);
+    expect(model.ipAddress?.anonymizer).toEqual({
+      confidence: 99,
+      isAnonymous: true,
+      isAnonymousVpn: true,
+      isHostingProvider: true,
+      isPublicProxy: true,
+      isResidentialProxy: false,
+      isTorExitNode: true,
+      networkLastSeen: '2025-01-15',
+      providerName: 'TestVPN',
+    });
+  });
+
+  it('handles empty anonymizer responses', () => {
+    delete response.ip_address.anonymizer;
+    const model = new Insights(response as InsightsResponse);
+    expect(model.ipAddress?.anonymizer).toBeUndefined();
+  });
 });

src/response/records.ts

@@ -1,4 +1,9 @@
-import { CountryRecord, Insights, LocationRecord } from '@maxmind/geoip2-node';
+import {
+  AnonymizerRecord,
+  CountryRecord,
+  Insights,
+  LocationRecord,
+} from '@maxmind/geoip2-node';
 import {
   CreditCardType,
   DispositionAction,
@@ -62,6 +67,11 @@ export interface IpRiskReasons {
  * Model for minFraud GeoIP2 Insights data.
  */
 export interface IpAddress extends Insights {
+  /**
+   * Anonymizer object for the requested IP address. This contains information
+   * about whether the IP address is associated with an anonymizing service.
+   */
+  readonly anonymizer?: AnonymizerRecord;
   /**
    * Country object for the requested IP address. This record represents the
    * country where MaxMind believes the IP is located.