diff --git a/adapters.json b/adapters.json
index a49141c8345..60f53d9a074 100644
--- a/adapters.json
+++ b/adapters.json
@@ -18,6 +18,7 @@
     "indexExchange",
     "kruxlink",
     "komoona",
+    "mantis",
     "openx",
     "piximedia",
     "pubmatic",
diff --git a/src/adapters/mantis.js b/src/adapters/mantis.js
new file mode 100644
index 00000000000..5b4b17f1638
--- /dev/null
+++ b/src/adapters/mantis.js
@@ -0,0 +1,223 @@
+var bidfactory = require('../bidfactory.js');
+var bidmanager = require('../bidmanager.js');
+var adloader = require('../adloader');
+var constants = require('../constants.json');
+
+module.exports = function () {
+  function inIframe() {
+    try {
+      return window.self !== window.top && !window.mantis_link;
+    } catch (e) {
+      return true;
+    }
+  }
+
+  function isDesktop(ignoreTouch) {
+    var scope = function (win) {
+      var width = win.innerWidth || win.document.documentElement.clientWidth || win.document.body.clientWidth;
+      var supportsTouch = !ignoreTouch && ('ontouchstart' in window || navigator.msMaxTouchPoints);
+
+      return !supportsTouch && (!width || width >= (window.mantis_breakpoint || 768));
+    };
+
+    if (inIframe()) {
+      try {
+        return scope(window.top);
+      } catch (ex) {
+      }
+    }
+
+    return scope(window);
+  }
+
+  function isSendable(val) {
+    if (val === null || val === undefined) {
+      return false;
+    }
+
+    if (typeof val === 'string') {
+      return !(!val || /^\s*$/.test(val));
+    }
+
+    if (typeof val === 'number') {
+      return !isNaN(val);
+    }
+
+    return true;
+  }
+
+  function isObject(value) {
+    return Object.prototype.toString.call(value) === '[object Object]';
+  }
+
+  function isAmp() {
+    return typeof window.context === "object" && (window.context.tagName === "AMP-AD" || window.context.tagName === "AMP-EMBED");
+  }
+
+  function isSecure() {
+    return document.location.protocol === "https:";
+  }
+
+  function isArray(value) {
+    return Object.prototype.toString.call(value) === '[object Array]';
+  }
+
+  function jsonp(callback) {
+    if (!window.mantis_jsonp) {
+      window.mantis_jsonp = [];
+    }
+
+    window.mantis_jsonp.push(callback);
+
+    return 'mantis_jsonp[' + (window.mantis_jsonp.length - 1) + ']';
+  }
+
+  function jsonToQuery(data, chain, form) {
+    if (!data) {
+      return null;
+    }
+
+    var parts = form || [];
+
+    for (var key in data) {
+      var queryKey = key;
+
+      if (chain) {
+        queryKey = chain + '[' + key + ']';
+      }
+
+      var val = data[key];
+
+      if (isArray(val)) {
+        for (var index = 0; index < val.length; index++) {
+          var akey = queryKey + '[' + index + ']';
+          var aval = val[index];
+
+          if (isObject(aval)) {
+            jsonToQuery(aval, akey, parts);
+          } else if (isSendable(aval)) {
+            parts.push(akey + '=' + encodeURIComponent(aval));
+          }
+        }
+      } else if (isObject(val)) {
+        jsonToQuery(val, queryKey, parts);
+      } else if (isSendable(val)) {
+        parts.push(queryKey + '=' + encodeURIComponent(val));
+      }
+    }
+
+    return parts.join('&');
+  }
+
+
+  function buildMantisUrl(path, data, domain) {
+    var params = {
+      referrer: document.referrer,
+      tz: new Date().getTimezoneOffset(),
+      buster: new Date().getTime(),
+      secure: isSecure()
+    };
+
+    if (!inIframe() || isAmp()) {
+      params.mobile = !isAmp() && isDesktop(true) ? 'false' : 'true';
+    }
+
+    if (window.mantis_uuid) {
+      params.uuid = window.mantis_uuid;
+    } else if (window.localStorage) {
+      var localUuid = window.localStorage.getItem('mantis:uuid');
+
+      if (localUuid) {
+        params.uuid = localUuid;
+      }
+    }
+
+    if (!inIframe()) {
+      try {
+        params.title = window.top.document.title;
+        params.referrer = window.top.document.referrer;
+        params.url = window.top.document.location.href;
+      } catch (ex) {
+
+      }
+    } else {
+      params.iframe = true;
+    }
+
+    if (isAmp()) {
+      if (!params.url && window.context.canonicalUrl) {
+        params.url = window.context.canonicalUrl;
+      }
+
+      if (!params.url && window.context.location) {
+        params.url = window.context.location.href;
+      }
+
+      if (!params.referrer && window.context.referrer) {
+        params.referrer = window.context.referrer;
+      }
+    }
+
+    Object.keys(data || {}).forEach(function (key) {
+      params[key] = data[key];
+    });
+
+    var query = jsonToQuery(params);
+
+    return (window.mantis_domain === undefined ? domain || 'https://mantodea.mantisadnetwork.com' : window.mantis_domain) + path + '?' + query;
+  }
+
+  var Prebid = function (bidfactory, bidmanager, adloader, constants) {
+    return {
+      callBids: function (params) {
+        var property = null;
+
+        params.bids.some(function (bid) {
+          if (bid.params.property) {
+            property = bid.params.property;
+
+            return true;
+          }
+        });
+
+        var url = {
+          jsonp: jsonp(function (resp) {
+            params.bids.forEach(function (bid) {
+              var ad = resp.ads[bid.bidId];
+
+              var bidObject;
+
+              if (ad) {
+                bidObject = bidfactory.createBid(constants.STATUS.GOOD);
+                bidObject.bidderCode = 'mantis';
+                bidObject.cpm = ad.cpm;
+                bidObject.ad = ad.html;
+                bidObject.width = ad.width;
+                bidObject.height = ad.height;
+              } else {
+                bidObject = bidfactory.createBid(constants.STATUS.NO_BID);
+                bidObject.bidderCode = 'mantis';
+              }
+
+              bidmanager.addBidResponse(bid.placementCode, bidObject);
+            });
+          }),
+          property: property,
+          bids: params.bids.map(function (bid) {
+            return {
+              bidId: bid.bidId,
+              sizes: bid.sizes.map(function (size) {
+                return {width: size[0], height: size[1]};
+              })
+            };
+          }),
+          version: 1
+        };
+
+        adloader.loadScript(buildMantisUrl('/website/prebid', url));
+      }
+    };
+  };
+
+  return new Prebid(bidfactory, bidmanager, adloader, constants);
+};
\ No newline at end of file
diff --git a/test/spec/adapters/mantis_spec.js b/test/spec/adapters/mantis_spec.js
new file mode 100644
index 00000000000..094baad8239
--- /dev/null
+++ b/test/spec/adapters/mantis_spec.js
@@ -0,0 +1,166 @@
+'use strict';
+
+describe('mantis adapter tests', function () {
+	const expect = require('chai').expect;
+	const adapter = require('src/adapters/mantis.js');
+	const bidmanager = require('src/bidmanager');
+	const adloader = require('src/adloader');
+	const constants = require('src/constants.json');
+
+	var mantis, sandbox;
+
+	beforeEach(() => {
+		mantis = new adapter();
+		sandbox = sinon.sandbox.create();
+	});
+
+
+	afterEach(() => {
+		sandbox.restore();
+
+		delete window.context;
+		delete window.mantis_link;
+		delete window.mantis_breakpoint;
+		delete window.mantis_uuid;
+	});
+
+	var callBidExample = {
+		bidderCode: 'mantis',
+		bids: [
+			{
+				bidId: 'bidId1',
+				bidder: 'mantis',
+				placementCode: 'foo',
+				sizes: [[728, 90]],
+				params: {
+					property: '1234'
+				}
+			},
+			{
+				bidId: 'bidId2',
+				bidder: 'mantis',
+				placementCode: 'bar',
+				sizes: [[300, 600], [300, 250]],
+				params: {
+					property: '1234'
+				}
+			}
+		]
+	};
+
+	describe('callBids', () => {
+		it('should create appropriate bid responses', () => {
+			sandbox.stub(bidmanager, 'addBidResponse');
+			sandbox.stub(adloader, 'loadScript', function (url) {
+				var jsonp = eval(decodeURIComponent(url.match(/jsonp=(.*)&property/)[1]));
+
+				jsonp({
+					ads: {
+						bidId1: {
+							cpm: 1,
+							html: '<script></script>',
+							width: 300,
+							height: 600
+						}
+					}
+				});
+			});
+
+			mantis.callBids(callBidExample);
+
+			sinon.assert.calledTwice(bidmanager.addBidResponse);
+
+			expect(bidmanager.addBidResponse.firstCall.args[0]).to.eql('foo');
+
+			var bid1 = bidmanager.addBidResponse.firstCall.args[1];
+			expect(bid1.getStatusCode()).to.eql(constants.STATUS.GOOD);
+			expect(bid1.bidderCode).to.eql('mantis');
+			expect(bid1.cpm).to.eql(1);
+			expect(bid1.ad).to.eql('<script></script>');
+			expect(bid1.width).to.eql(300);
+			expect(bid1.height).to.eql(600);
+
+			expect(bidmanager.addBidResponse.secondCall.args[0]).to.eql('bar');
+
+			var bid2 = bidmanager.addBidResponse.secondCall.args[1];
+			expect(bid2.getStatusCode()).to.eql(constants.STATUS.NO_BID);
+			expect(bid2.bidderCode).to.eql('mantis');
+		});
+
+		it('should load script with relevant bid data', () => {
+			sandbox.stub(adloader, 'loadScript');
+
+			mantis.callBids(callBidExample);
+
+			sinon.assert.calledOnce(adloader.loadScript);
+
+			var serverCall = adloader.loadScript.firstCall.args[0];
+
+			expect(serverCall).to.match(/buster=[0-9]+&/);
+			expect(serverCall).to.match(/tz=[0-9]+&/);
+			expect(serverCall).to.match(/secure=(true|false)&/);
+			expect(serverCall).to.string('property=1234&');
+			expect(serverCall).to.string('bids[0][bidId]=bidId1&');
+			expect(serverCall).to.string('bids[0][sizes][0][width]=728&');
+			expect(serverCall).to.string('bids[0][sizes][0][height]=90&');
+			expect(serverCall).to.string('bids[1][bidId]=bidId2&');
+			expect(serverCall).to.string('bids[1][sizes][0][width]=300&');
+			expect(serverCall).to.string('bids[1][sizes][0][height]=600&');
+			expect(serverCall).to.string('bids[1][sizes][1][width]=300&');
+			expect(serverCall).to.string('bids[1][sizes][1][height]=250&');
+			expect(serverCall).to.string('version=1');
+		});
+
+		/* tests below are to just adhere to code coverage requirements, but it is already tested in our own libraries/deployment process */
+		it('should send uuid from window if set', () => {
+			sandbox.stub(adloader, 'loadScript');
+
+			window.mantis_uuid = '4321';
+
+			mantis.callBids(callBidExample);
+
+			sinon.assert.calledOnce(adloader.loadScript);
+
+			var serverCall = adloader.loadScript.firstCall.args[0];
+
+			expect(serverCall).to.string('uuid=4321&');
+		});
+
+		it('should send mobile = true if breakpoint is hit', () => {
+			sandbox.stub(adloader, 'loadScript');
+
+			window.mantis_link = true; // causes iframe detection to not work
+			window.mantis_breakpoint = 100000000; // force everything to be mobile
+
+			mantis.callBids(callBidExample);
+
+			sinon.assert.calledOnce(adloader.loadScript);
+
+			var serverCall = adloader.loadScript.firstCall.args[0];
+
+			expect(serverCall).to.string('mobile=true&');
+		});
+
+		it('should send different params if amp is detected', () => {
+			sandbox.stub(adloader, 'loadScript');
+
+			window.context = {
+				tagName: "AMP-AD",
+				location: {
+					href: 'bar',
+					referrer: 'baz'
+				}
+			};
+
+			mantis.callBids(callBidExample);
+
+			sinon.assert.calledOnce(adloader.loadScript);
+
+			var serverCall = adloader.loadScript.firstCall.args[0];
+
+			expect(serverCall).to.string('mobile=true&');
+			expect(serverCall).to.string('url=bar&');
+		});
+	});
+});
+