diff --git a/modules/trustxBidAdapter.js b/modules/trustxBidAdapter.js
index a1ba632a487..00c86dec0d3 100644
--- a/modules/trustxBidAdapter.js
+++ b/modules/trustxBidAdapter.js
@@ -46,6 +46,7 @@ export const spec = {
     const sizeMap = {};
     const bids = validBidRequests || [];
     let priceType = 'net';
+    let pageKeywords;
     let reqId;
 
     bids.forEach(bid => {
@@ -57,6 +58,15 @@ export const spec = {
       auids.push(uid);
       const sizesId = utils.parseSizesInput(bid.sizes);
 
+      if (!pageKeywords && !utils.isEmpty(bid.params.keywords)) {
+        const keywords = utils.transformBidderParamKeywords(bid.params.keywords);
+
+        if (keywords.length > 0) {
+          keywords.forEach(deleteValues);
+        }
+        pageKeywords = keywords;
+      }
+
       if (!slotsMapByUid[uid]) {
         slotsMapByUid[uid] = {};
       }
@@ -92,6 +102,10 @@ export const spec = {
       wrapperVersion: '$prebid.version$'
     };
 
+    if (pageKeywords) {
+      payload.keywords = JSON.stringify(pageKeywords);
+    }
+
     if (bidderRequest) {
       if (bidderRequest.refererInfo && bidderRequest.refererInfo.referer) {
         payload.u = bidderRequest.refererInfo.referer;
@@ -154,6 +168,16 @@ export const spec = {
   }
 }
 
+function isPopulatedArray(arr) {
+  return !!(utils.isArray(arr) && arr.length > 0);
+}
+
+function deleteValues(keyPairObj) {
+  if (isPopulatedArray(keyPairObj.value) && keyPairObj.value[0] === '') {
+    delete keyPairObj.value;
+  }
+}
+
 function _getBidFromResponse(respItem) {
   if (!respItem) {
     utils.logError(LOG_ERROR_MESS.emptySeatbid);
diff --git a/modules/trustxBidAdapter.md b/modules/trustxBidAdapter.md
index d6b660c6248..a72f1ba85aa 100644
--- a/modules/trustxBidAdapter.md
+++ b/modules/trustxBidAdapter.md
@@ -32,7 +32,11 @@ TrustX Bid Adapter supports Banner and Video (instream and outstream).
                        bidder: "trustx",
                        params: {
                            uid: 45,
-                           priceType: 'gross'
+                           priceType: 'gross',
+                           keywords: {
+                               brandsafety: ['disaster'],
+                               topic: ['stress', 'fear']
+                           }
                        }
                    }
                ]
diff --git a/test/spec/modules/trustxBidAdapter_spec.js b/test/spec/modules/trustxBidAdapter_spec.js
index d7d16348bcf..4256012ba0b 100644
--- a/test/spec/modules/trustxBidAdapter_spec.js
+++ b/test/spec/modules/trustxBidAdapter_spec.js
@@ -167,6 +167,55 @@ describe('TrustXAdapter', function () {
       expect(payload).to.have.property('gdpr_consent', 'AAA');
       expect(payload).to.have.property('gdpr_applies', '1');
     });
+
+    it('should convert keyword params to proper form and attaches to request', function () {
+      const bidRequestWithKeywords = [].concat(bidRequests);
+      bidRequestWithKeywords[1] = Object.assign({},
+        bidRequests[1],
+        {
+          params: {
+            uid: '43',
+            keywords: {
+              single: 'val',
+              singleArr: ['val'],
+              singleArrNum: [5],
+              multiValMixed: ['value1', 2, 'value3'],
+              singleValNum: 123,
+              emptyStr: '',
+              emptyArr: [''],
+              badValue: {'foo': 'bar'} // should be dropped
+            }
+          }
+        }
+      );
+
+      const request = spec.buildRequests(bidRequestWithKeywords, bidderRequest);
+      expect(request.data).to.be.an('string');
+      const payload = parseRequest(request.data);
+      expect(payload.keywords).to.be.an('string');
+      payload.keywords = JSON.parse(payload.keywords);
+
+      expect(payload.keywords).to.deep.equal([{
+        'key': 'single',
+        'value': ['val']
+      }, {
+        'key': 'singleArr',
+        'value': ['val']
+      }, {
+        'key': 'singleArrNum',
+        'value': ['5']
+      }, {
+        'key': 'multiValMixed',
+        'value': ['value1', '2', 'value3']
+      }, {
+        'key': 'singleValNum',
+        'value': ['123']
+      }, {
+        'key': 'emptyStr'
+      }, {
+        'key': 'emptyArr'
+      }]);
+    });
   });
 
   describe('interpretResponse', function () {