diff --git a/CHANGELOG.md b/CHANGELOG.md
index dffc95a..bcda316 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+### Version: 5.1.0
+#### Date: Mar-02-2026
+Fix: Added support of asset fields in assets & entries class.
+
 ### Version: 5.0.1
 #### Date: feb-23-2026
 Fix: Added support of special symbols in regex method with safe pattern.
diff --git a/package-lock.json b/package-lock.json
index ee39539..5c806de 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@contentstack/delivery-sdk",
-  "version": "5.0.1",
+  "version": "5.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@contentstack/delivery-sdk",
-      "version": "5.0.1",
+      "version": "5.1.0",
       "license": "MIT",
       "dependencies": {
         "@contentstack/core": "^1.3.10",
@@ -566,9 +566,9 @@
       }
     },
     "node_modules/@contentstack/utils": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/@contentstack/utils/-/utils-1.7.0.tgz",
-      "integrity": "sha512-wNWNt+wkoGJzCr5ZhAMKWJ5ND5xbD7N3t++Y6s1O+FB+AFzJszqCT740j6VqwjhQzw5sGfHoGjHIvlQA9dCcBw==",
+      "version": "1.7.1",
+      "resolved": "https://registry.npmjs.org/@contentstack/utils/-/utils-1.7.1.tgz",
+      "integrity": "sha512-b/0t1malpJeFCNd9+1uN3BuO8mRn2b5+aNtrYEZ6YlSNjYNRu9IjqSxZ5Clhs5267950UV1ayhgFE8z3qre2eQ==",
       "license": "MIT"
     },
     "node_modules/@cspotcode/source-map-support": {
@@ -1379,9 +1379,9 @@
       }
     },
     "node_modules/@jest/reporters/node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+      "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
@@ -2069,13 +2069,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "25.2.3",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.2.3.tgz",
-      "integrity": "sha512-m0jEgYlYz+mDJZ2+F4v8D1AyQb+QzsNqRuI7xg1VQX/KlKS0qT9r1Mo16yo5F/MtifXFgaofIFsdFMox2SxIbQ==",
+      "version": "25.3.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.3.2.tgz",
+      "integrity": "sha512-RpV6r/ij22zRRdyBPcxDeKAzH43phWVKEjL2iksqo1Vz3CuBUrgmPpPhALKiRfU7OMCmeeO9vECBMsV0hMTG8Q==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~7.16.0"
+        "undici-types": "~7.18.0"
       }
     },
     "node_modules/@types/node-localstorage": {
@@ -2205,9 +2205,9 @@
       }
     },
     "node_modules/acorn": {
-      "version": "8.15.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.15.0.tgz",
-      "integrity": "sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==",
+      "version": "8.16.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.16.0.tgz",
+      "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
       "dev": true,
       "license": "MIT",
       "bin": {
@@ -2229,9 +2229,9 @@
       }
     },
     "node_modules/acorn-walk": {
-      "version": "8.3.4",
-      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.3.4.tgz",
-      "integrity": "sha512-ueEepnujpqee2o5aIYnvHU6C0A42MNdsIDeqy5BydrkuC5R1ZuUFnm27EeFJGoEHJQgn3uleRvmTXaJgfXbt4g==",
+      "version": "8.3.5",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.3.5.tgz",
+      "integrity": "sha512-HEHNfbars9v4pgpW6SO1KSPkfoS0xVOM/9UzkJltjlsHZmJasxg8aXkuZa7SMf8vKGIBhpUsPluQSqhJFCqebw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -2488,13 +2488,16 @@
       "license": "MIT"
     },
     "node_modules/baseline-browser-mapping": {
-      "version": "2.9.19",
-      "resolved": "https://registry.npmjs.org/baseline-browser-mapping/-/baseline-browser-mapping-2.9.19.tgz",
-      "integrity": "sha512-ipDqC8FrAl/76p2SSWKSI+H9tFwm7vYqXQrItCuiVPt26Km0jS+NzSsBWAaBusvSbQcfJG+JitdMm+wZAgTYqg==",
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/baseline-browser-mapping/-/baseline-browser-mapping-2.10.0.tgz",
+      "integrity": "sha512-lIyg0szRfYbiy67j9KN8IyeD7q7hcmqnJ1ddWmNt19ItGpNN64mnllmxUNFIOdOm6by97jlL6wfpTTJrmnjWAA==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
-        "baseline-browser-mapping": "dist/cli.js"
+        "baseline-browser-mapping": "dist/cli.cjs"
+      },
+      "engines": {
+        "node": ">=6.0.0"
       }
     },
     "node_modules/basic-auth": {
@@ -2689,9 +2692,9 @@
       }
     },
     "node_modules/caniuse-lite": {
-      "version": "1.0.30001770",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001770.tgz",
-      "integrity": "sha512-x/2CLQ1jHENRbHg5PSId2sXq1CIO1CISvwWAj027ltMVG2UNgW+w9oH2+HzgEIRFembL8bUlXtfbBHR1fCg2xw==",
+      "version": "1.0.30001774",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001774.tgz",
+      "integrity": "sha512-DDdwPGz99nmIEv216hKSgLD+D4ikHQHjBC/seF98N9CPqRX4M5mSxT9eTV6oyisnJcuzxtZy4n17yKKQYmYQOA==",
       "dev": true,
       "funding": [
         {
@@ -3233,9 +3236,9 @@
       "license": "MIT"
     },
     "node_modules/electron-to-chromium": {
-      "version": "1.5.286",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.286.tgz",
-      "integrity": "sha512-9tfDXhJ4RKFNerfjdCcZfufu49vg620741MNs26a9+bhLThdB+plgMeou98CAaHu/WATj2iHOOHTp1hWtABj2A==",
+      "version": "1.5.302",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.302.tgz",
+      "integrity": "sha512-sM6HAN2LyK82IyPBpznDRqlTQAtuSaO+ShzFiWTvoMJLHyZ+Y39r8VMfHzwbU8MVBzQ4Wdn85+wlZl2TLGIlwg==",
       "dev": true,
       "license": "ISC"
     },
@@ -4675,9 +4678,9 @@
       }
     },
     "node_modules/jest-config/node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+      "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
@@ -5140,9 +5143,9 @@
       }
     },
     "node_modules/jest-runtime/node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+      "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
@@ -5785,13 +5788,13 @@
       }
     },
     "node_modules/minimatch": {
-      "version": "9.0.5",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
-      "integrity": "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==",
+      "version": "9.0.9",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.9.tgz",
+      "integrity": "sha512-OBwBN9AL4dqmETlpS2zasx+vTeWclWzkblfZk7KTA5j3jeOONz/tRCnZomUyvNg83wL5Zv9Ss6HMJXAgL8R2Yg==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
-        "brace-expansion": "^2.0.1"
+        "brace-expansion": "^2.0.2"
       },
       "engines": {
         "node": ">=16 || 14 >=14.17"
@@ -5811,11 +5814,11 @@
       }
     },
     "node_modules/minipass": {
-      "version": "7.1.2",
-      "resolved": "https://registry.npmjs.org/minipass/-/minipass-7.1.2.tgz",
-      "integrity": "sha512-qOOzS1cBTWYF4BH8fVePDBOO9iptMnGUEZwNc/cMWnTV2nVLZ7VoNWEPHkYczZA0pdoA7dl6e7FL659nX9S2aw==",
+      "version": "7.1.3",
+      "resolved": "https://registry.npmjs.org/minipass/-/minipass-7.1.3.tgz",
+      "integrity": "sha512-tEBHqDnIoM/1rXME1zgka9g6Q2lcoCkxHLuc7ODJ5BxbP5d4c2Z5cGgtXAku59200Cx7diuHTOYfSBD8n6mm8A==",
       "dev": true,
-      "license": "ISC",
+      "license": "BlueOak-1.0.0",
       "engines": {
         "node": ">=16 || 14 >=14.17"
       }
@@ -6567,9 +6570,9 @@
       }
     },
     "node_modules/rollup": {
-      "version": "3.29.5",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-3.29.5.tgz",
-      "integrity": "sha512-GVsDdsbJzzy4S/v3dqWPJ7EfvZJfCHiDqe80IyrF59LYuP+e6U1LJoUqeuqRbwAWoMNoXivMNeNAOf5E22VA1w==",
+      "version": "3.30.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-3.30.0.tgz",
+      "integrity": "sha512-kQvGasUgN+AlWGliFn2POSajRQEsULVYFGTvOZmK06d7vCD+YhZztt70kGk3qaeAXeWYL5eO7zx+rAubBc55eA==",
       "dev": true,
       "license": "MIT",
       "bin": {
@@ -6998,13 +7001,13 @@
       }
     },
     "node_modules/strip-ansi": {
-      "version": "7.1.2",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.1.2.tgz",
-      "integrity": "sha512-gmBGslpoQJtgnMAvOVqGZpEz9dyoKTCzy2nfz/n8aIFhN/jCE/rCmcxabB6jOOHV+0WNnylOxaxBQPSvcWklhA==",
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.2.0.tgz",
+      "integrity": "sha512-yDPMNjp4WyfYBkHnjIRLfca1i6KMyGCtsVgoKe/z1+6vukgaENdgGBZt+ZmKPc4gavvEZ5OgHfHdrazhgNyG7w==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "ansi-regex": "^6.0.1"
+        "ansi-regex": "^6.2.2"
       },
       "engines": {
         "node": ">=12"
@@ -7152,9 +7155,9 @@
       }
     },
     "node_modules/test-exclude/node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+      "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
@@ -7439,9 +7442,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.16.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
-      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
+      "version": "7.18.2",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.18.2.tgz",
+      "integrity": "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index abc8bb0..60844cf 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@contentstack/delivery-sdk",
-  "version": "5.0.1",
+  "version": "5.1.0",
   "type": "module",
   "license": "MIT",
   "engines": {
diff --git a/src/assets/asset.ts b/src/assets/asset.ts
index b5c7c23..9a1d1d0 100644
--- a/src/assets/asset.ts
+++ b/src/assets/asset.ts
@@ -3,7 +3,7 @@ import { AxiosInstance, getData } from '@contentstack/core';
 export class Asset {
   private _client: AxiosInstance;
   private _urlPath: string;
-  _queryParams: { [key: string]: string | number } = {};
+  _queryParams: { [key: string]: string | number | string[] } = {};
 
   constructor(client: AxiosInstance, assetUid: string) {
     this._client = client;
@@ -129,6 +129,27 @@ export class Asset {
     return this;
   }
 
+  /**
+   * @method assetFields
+   * @memberof Asset
+   * @description Include specific asset fields in the response (CDA getAssets - single asset).
+   * Use with asset_fields[]: user_defined_fields, embedded, ai_suggested, visual_markups.
+   * @example
+   * import contentstack from '@contentstack/delivery-sdk'
+   *
+   * const stack = contentstack.stack({ apiKey: "apiKey", deliveryToken: "deliveryToken", environment: "environment" });
+   * const result = await stack.asset("assetUid").assetFields("user_defined_fields", "embedded_metadata").fetch();
+   *
+   * @param {...string} fields - Asset field names to include (e.g. user_defined_fields, embedded, ai_suggested, visual_markups)
+   * @returns {Asset} - Returns the Asset instance for chaining.
+   */
+  assetFields(...fields: string[]): this {
+    if (fields.length > 0) {
+      this._queryParams['asset_fields[]'] = fields;
+    }
+    return this;
+  }
+
   /**
    * @method fetch
    * @memberof Asset
diff --git a/src/entries/entries.ts b/src/entries/entries.ts
index a384272..0107efb 100644
--- a/src/entries/entries.ts
+++ b/src/entries/entries.ts
@@ -277,6 +277,27 @@ export class Entries extends BaseQuery {
     return this;
   }
 
+  /**
+   * @method assetFields
+   * @memberof Entries
+   * @description Include specific asset fields in the response (CDA getEntry/entries).
+   * Use with asset_fields[]: user_defined_fields, embedded, ai_suggested, visual_markups.
+   * @example
+   * import contentstack from '@contentstack/delivery-sdk'
+   *
+   * const stack = contentstack.stack({ apiKey: "apiKey", deliveryToken: "deliveryToken", environment: "environment" });
+   * const result = await stack.contentType("contentTypeUid").entry().assetFields("user_defined_fields", "embedded_metadata").find();
+   *
+   * @param {...string} fields - Asset field names to include (e.g. user_defined_fields, embedded, ai_suggested, visual_markups)
+   * @returns {Entries} - Returns the Entries instance for chaining.
+   */
+  assetFields(...fields: string[]): this {
+    if (fields.length > 0) {
+      this._queryParams['asset_fields[]'] = fields;
+    }
+    return this;
+  }
+
   /**
    * Override find method to include content type UID directly for better caching
    */
diff --git a/src/entries/entry.ts b/src/entries/entry.ts
index 1f9376e..9e472f8 100644
--- a/src/entries/entry.ts
+++ b/src/entries/entry.ts
@@ -273,4 +273,25 @@ export class Entry {
     }
     return this;
   }
+
+  /**
+   * @method assetFields
+   * @memberof Entry
+   * @description Include specific asset fields in the response (CDA getEntry).
+   * Use with asset_fields[]: user_defined_fields, embedded, ai_suggested, visual_markups.
+   * @example
+   * import contentstack from '@contentstack/delivery-sdk'
+   *
+   * const stack = contentstack.stack({ apiKey: "apiKey", deliveryToken: "deliveryToken", environment: "environment" });
+   * const result = await stack.contentType("contentTypeUid").entry("entryUid").assetFields("user_defined_fields", "embedded_metadata").fetch();
+   *
+   * @param {...string} fields - Asset field names to include (e.g. user_defined_fields, embedded, ai_suggested, visual_markups)
+   * @returns {Entry} - Returns the Entry instance for chaining.
+   */
+  assetFields(...fields: string[]): this {
+    if (fields.length > 0) {
+      this._queryParams['asset_fields[]'] = fields;
+    }
+    return this;
+  }
 }
diff --git a/src/query/asset-query.ts b/src/query/asset-query.ts
index 0c1b906..8e1db8b 100644
--- a/src/query/asset-query.ts
+++ b/src/query/asset-query.ts
@@ -126,6 +126,28 @@ export class AssetQuery extends BaseQuery {
 
     return this;
   }
+
+  /**
+   * @method assetFields
+   * @memberof AssetQuery
+   * @description Include specific asset fields in the response (CDA getAssets).
+   * Use with asset_fields[]: user_defined_fields, embedded, ai_suggested, visual_markups.
+   * @example
+   * import contentstack from '@contentstack/delivery-sdk'
+   *
+   * const stack = contentstack.stack({ apiKey: "apiKey", deliveryToken: "deliveryToken", environment: "environment" });
+   * const result = await stack.asset().assetFields("user_defined_fields", "embedded_metadata").find();
+   *
+   * @param {...string} fields - Asset field names to include (e.g. user_defined_fields, embedded, ai_suggested, visual_markups)
+   * @returns {AssetQuery} - Returns the AssetQuery instance for chaining.
+   */
+  assetFields(...fields: string[]): this {
+    if (fields.length > 0) {
+      this._queryParams['asset_fields[]'] = fields;
+    }
+    return this;
+  }
+
   /**
    * @method query
    * @memberof AssetQuery
diff --git a/test/api/asset-query.spec.ts b/test/api/asset-query.spec.ts
index 4e2ff1a..c21903c 100644
--- a/test/api/asset-query.spec.ts
+++ b/test/api/asset-query.spec.ts
@@ -130,6 +130,20 @@ describe("AssetQuery API tests", () => {
       console.log('No assets found in stack - test data dependent');
     }
   });
+  it("should query assets with asset_fields[] CDA param (user_defined_fields, embedded, ai_suggested, visual_markups)", async () => {
+    const result = await makeAssetQuery()
+      .assetFields("user_defined_fields", "embedded_metadata", "ai_suggested", "visual_markups")
+      .limit(2)
+      .find<TAsset>();
+    if (result.assets) {
+      expect(result.assets).toBeDefined();
+      if (result.assets.length > 0) {
+        expect(result.assets[0].uid).toBeDefined();
+        expect(result.assets[0]._version).toBeDefined();
+        expect(result.assets[0].content_type).toBeDefined();
+      }
+    }
+  });
 });
 function makeAssetQuery(): AssetQuery {
   const asset = stack.asset();
diff --git a/test/api/asset.spec.ts b/test/api/asset.spec.ts
index 739df50..b906cec 100644
--- a/test/api/asset.spec.ts
+++ b/test/api/asset.spec.ts
@@ -103,6 +103,17 @@ describe('Asset API tests', () => {
     expect(result.created_by).toBeDefined();
     expect(result.updated_by).toBeDefined();
   });
+
+  it('should fetch asset with asset_fields[] CDA param (user_defined_fields, embedded, ai_suggested, visual_markups)', async () => {
+    const result = await makeAsset(assetUid)
+      .assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups')
+      .fetch<BaseAsset>();
+    expect(result).toBeDefined();
+    expect(result.uid).toBeDefined();
+    expect(result._version).toBeDefined();
+    expect(result.url).toBeDefined();
+    expect(result.filename).toBeDefined();
+  });
 });
 function makeAsset(uid = ''): Asset {
   const asset = stack.asset(uid);
diff --git a/test/api/entries.spec.ts b/test/api/entries.spec.ts
index d9ebb19..b67290d 100644
--- a/test/api/entries.spec.ts
+++ b/test/api/entries.spec.ts
@@ -171,6 +171,19 @@ describe("Entries API test cases", () => {
     if (data.entries) expect(data.entries.length).toBeGreaterThan(0);
   });
 
+  it("should query entries with asset_fields[] CDA param (user_defined_fields, embedded, ai_suggested, visual_markups)", async () => {
+    const result = await makeEntries(BLOG_POST_CT)
+      .assetFields("user_defined_fields", "embedded_metadata", "ai_suggested", "visual_markups")
+      .find<TEntry>();
+    if (result.entries) {
+      expect(result.entries).toBeDefined();
+      if (result.entries.length > 0) {
+        expect(result.entries[0].uid).toBeDefined();
+        expect(result.entries[0]._version).toBeDefined();
+      }
+    }
+  });
+
   it("CT Taxonomies Query: Get Entries With Taxonomy Terms Parent and Excluding the term itself ($above, level)", async () => {
     // ABOVE operation finds entries tagged with PARENT terms of the given term
     // Requires a child term (e.g., term_one_child) to find its parents
diff --git a/test/api/entry.spec.ts b/test/api/entry.spec.ts
index 700d909..c442acd 100644
--- a/test/api/entry.spec.ts
+++ b/test/api/entry.spec.ts
@@ -67,6 +67,16 @@ describe('Entry API tests', () => {
     expect(result._version).toBeDefined();
     expect(result.publish_details).toBeDefined();
   });
+
+  it('should fetch entry with asset_fields[] CDA param (user_defined_fields, embedded, ai_suggested, visual_markups)', async () => {
+    const result = await makeEntry(entryUid)
+      .assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups')
+      .fetch<TEntry>();
+    expect(result).toBeDefined();
+    expect(result.uid).toBeDefined();
+    expect(result._version).toBeDefined();
+    expect(result.locale).toBeDefined();
+  });
 });
 function makeEntry(uid = ''): Entry {
   const entry = stack.contentType(BLOG_POST_CT).entry(uid);
diff --git a/test/unit/asset-query.spec.ts b/test/unit/asset-query.spec.ts
index a22f3d3..5eae8d1 100644
--- a/test/unit/asset-query.spec.ts
+++ b/test/unit/asset-query.spec.ts
@@ -60,6 +60,17 @@ describe('AssetQuery class', () => {
     expect(assetQuery._queryParams.locale).toBe('en-us');
   });
 
+  it('should add "asset_fields[]" in _queryParams when assetFields method is called', () => {
+    const returnedValue = assetQuery.assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups');
+    expect(returnedValue).toBeInstanceOf(AssetQuery);
+    expect(assetQuery._queryParams['asset_fields[]']).toEqual(['user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups']);
+  });
+
+  it('should not set asset_fields[] when assetFields is called with no arguments', () => {
+    assetQuery.assetFields();
+    expect(assetQuery._queryParams['asset_fields[]']).toBeUndefined();
+  });
+
   it('should return response data when successful', async () => {
     mockClient.onGet('/assets').reply(200, assetQueryFindResponseDataMock);
     const response = await assetQuery.find();
@@ -72,4 +83,15 @@ describe('AssetQuery class', () => {
       expect(returnedValue._parameters).toEqual({ fieldUid: 'value' });
     }
   });
+
+  it('should call find with asset_fields[] query params when assetFields is set', async () => {
+    mockClient.onGet('/assets').reply((config) => {
+      expect(config.params).toBeDefined();
+      expect(config.params['asset_fields[]']).toEqual(['user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups']);
+      return [200, assetQueryFindResponseDataMock];
+    });
+    assetQuery.assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups');
+    const result = await assetQuery.find();
+    expect(result).toEqual(assetQueryFindResponseDataMock);
+  });
 });
diff --git a/test/unit/asset.spec.ts b/test/unit/asset.spec.ts
index 2532ce0..dad5055 100644
--- a/test/unit/asset.spec.ts
+++ b/test/unit/asset.spec.ts
@@ -60,6 +60,17 @@ describe('Asset class', () => {
     expect(asset._queryParams.version).toBe('1');
   });
 
+  it('should add "asset_fields[]" in _queryParams when assetFields method is called', () => {
+    const returnedValue = asset.assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups');
+    expect(returnedValue).toBeInstanceOf(Asset);
+    expect(asset._queryParams['asset_fields[]']).toEqual(['user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups']);
+  });
+
+  it('should not set asset_fields[] when assetFields is called with no arguments', () => {
+    asset.assetFields();
+    expect(asset._queryParams['asset_fields[]']).toBeUndefined();
+  });
+
   it('should add "fetch" in _queryParams when fetch method is called', async () => {
     mockClient.onGet(`/assets/assetUid`).reply(200, assetFetchDataMock);
     const returnedValue = await asset.fetch();
@@ -74,4 +85,15 @@ describe('Asset class', () => {
     
     expect(result).toEqual(responseWithoutAsset);
   });
+
+  it('should call fetch with asset_fields[] query params when assetFields is set', async () => {
+    mockClient.onGet(`/assets/assetUid`).reply((config) => {
+      expect(config.params).toBeDefined();
+      expect(config.params['asset_fields[]']).toEqual(['user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups']);
+      return [200, assetFetchDataMock];
+    });
+    asset.assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups');
+    const result = await asset.fetch();
+    expect(result).toEqual(assetFetchDataMock.asset);
+  });
 });
diff --git a/test/unit/entries.spec.ts b/test/unit/entries.spec.ts
index 08f2e79..461a9d6 100644
--- a/test/unit/entries.spec.ts
+++ b/test/unit/entries.spec.ts
@@ -75,6 +75,17 @@ describe('Entries class', () => {
     expect(entry._queryParams.include_content_type).toBe('true');
   });
 
+  it('should add "asset_fields[]" in _queryParams when assetFields method is called', () => {
+    const returnedValue = entry.assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups');
+    expect(returnedValue).toBeInstanceOf(Entries);
+    expect(entry._queryParams['asset_fields[]']).toEqual(['user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups']);
+  });
+
+  it('should not set asset_fields[] when assetFields is called with no arguments', () => {
+    entry.assetFields();
+    expect(entry._queryParams['asset_fields[]']).toBeUndefined();
+  });
+
   it('should add "include_reference_content_type_uid" in _queryParams when includeReferenceContentTypeUID method is called', () => {
     const returnedValue = entry.includeReferenceContentTypeUID();
     expect(returnedValue).toBeInstanceOf(Entries);
@@ -149,6 +160,17 @@ describe('Entries class', () => {
     expect(returnedValue).toEqual(entryFindMock);
   });
 
+  it('should call find with asset_fields[] query params when assetFields is set', async () => {
+    mockClient.onGet(`/content_types/contentTypeUid/entries`).reply((config) => {
+      expect(config.params).toBeDefined();
+      expect(config.params['asset_fields[]']).toEqual(['user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups']);
+      return [200, entryFindMock];
+    });
+    entry.assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups');
+    const result = await entry.find();
+    expect(result).toEqual(entryFindMock);
+  });
+
   it('CT Taxonomy Query: Get entries with one term', () => {
       const query = entry.query().where("taxonomies.taxonomy_uid", QueryOperation.EQUALS, "term_uid");
       expect(query._parameters).toEqual({"taxonomies.taxonomy_uid": "term_uid"});
diff --git a/test/unit/entry.spec.ts b/test/unit/entry.spec.ts
index f342810..65730ae 100644
--- a/test/unit/entry.spec.ts
+++ b/test/unit/entry.spec.ts
@@ -128,6 +128,17 @@ describe('Entry class', () => {
     expect(entry._queryParams.key3).toEqual(['value3']);
   });
 
+  it('should add "asset_fields[]" in _queryParams when assetFields method is called', () => {
+    const returnedValue = entry.assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups');
+    expect(returnedValue).toBeInstanceOf(Entry);
+    expect(entry._queryParams['asset_fields[]']).toEqual(['user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups']);
+  });
+
+  it('should not set asset_fields[] when assetFields is called with no arguments', () => {
+    entry.assetFields();
+    expect(entry._queryParams['asset_fields[]']).toBeUndefined();
+  });
+
   it('should get the API response when fetch method is called', async () => {
     mockClient.onGet(`/content_types/contentTypeUid/entries/entryUid`).reply(200, entryFetchMock);
     const returnedValue = await entry.fetch();
@@ -237,4 +248,17 @@ describe('Fetch with variants', () => {
     
     expect(result).toEqual(responseWithoutEntry);
   });
+
+  it('should call fetch with asset_fields[] query params when assetFields is set', async () => {
+    mockClient.onGet('/content_types/contentTypeUid/entries/entryUid').reply((config) => {
+      expect(config.params).toBeDefined();
+      expect(config.params['asset_fields[]']).toEqual(['user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups']);
+      return [200, entryFetchMock];
+    });
+
+    entry.assetFields('user_defined_fields', 'embedded', 'ai_suggested', 'visual_markups');
+    const result = await entry.fetch();
+
+    expect(result).toEqual(entryFetchMock.entry);
+  });
 })