diff --git a/adapters/mediago/mediago.go b/adapters/mediago/mediago.go
new file mode 100644
index 00000000000..2ef46310bd0
--- /dev/null
+++ b/adapters/mediago/mediago.go
@@ -0,0 +1,210 @@
+package mediago
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+	"text/template"
+
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v2/adapters"
+	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v2/errortypes"
+	"github.com/prebid/prebid-server/v2/macros"
+	"github.com/prebid/prebid-server/v2/openrtb_ext"
+)
+
+type adapter struct {
+	EndpointTemplate *template.Template
+}
+
+type mediagoResponseBidExt struct {
+	MediaType string `json:"mediaType"`
+}
+
+// Builder builds a new instance of the MediaGo adapter for the given bidder with the given config.
+func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
+	endpoint, err := template.New("endpointTemplate").Parse(config.Endpoint)
+	if err != nil {
+		return nil, fmt.Errorf("unable to parse endpoint url template: %v", err)
+	}
+	bidder := &adapter{
+		EndpointTemplate: endpoint,
+	}
+	return bidder, nil
+}
+
+func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+	var adapterRequests []*adapters.RequestData
+	var errs []error
+
+	adapterRequest, err := a.makeRequest(request)
+	if err == nil {
+		adapterRequests = append(adapterRequests, adapterRequest)
+	} else {
+		errs = append(errs, err)
+	}
+	return adapterRequests, errs
+}
+
+func (a *adapter) makeRequest(request *openrtb2.BidRequest) (*adapters.RequestData, error) {
+
+	mediagoExt, err := getMediaGoExt(request)
+	if err != nil {
+		return nil, err
+	}
+	endPoint, err := a.getEndPoint(mediagoExt)
+	if err != nil {
+		return nil, err
+	}
+
+	preProcess(request)
+	reqBody, err := json.Marshal(request)
+	if err != nil {
+		return nil, err
+	}
+
+	headers := http.Header{}
+	headers.Add("Content-Type", "application/json;charset=utf-8")
+	headers.Add("Accept", "application/json")
+	headers.Add("x-openrtb-version", "2.5")
+
+	return &adapters.RequestData{
+		Method:  "POST",
+		Uri:     endPoint,
+		Body:    reqBody,
+		Headers: headers,
+		ImpIDs:  openrtb_ext.GetImpIDs(request.Imp),
+	}, nil
+}
+
+// getMediaGoExt get MediaGoExt From ext.bidderparams or ext of First Imp. Only check and get first Imp.Ext.Bidder to ExtImpMediago
+func getMediaGoExt(request *openrtb2.BidRequest) (*openrtb_ext.ExtMediaGo, error) {
+	var extMediaGo openrtb_ext.ExtMediaGo
+	var extBidder adapters.ExtImpBidder
+
+	// first get the mediago ext from ext.bidderparams
+	reqExt := &openrtb_ext.ExtRequest{}
+	err := json.Unmarshal(request.Ext, &reqExt)
+	if err != nil {
+		err = json.Unmarshal(reqExt.Prebid.BidderParams, &extMediaGo)
+		if err != nil && extMediaGo.Token != "" {
+			return &extMediaGo, nil
+		}
+	}
+
+	// fallback to get token and region from first imp
+	imp := request.Imp[0]
+	err = json.Unmarshal(imp.Ext, &extBidder)
+	if err != nil {
+		return nil, err
+	}
+
+	var extImpMediaGo openrtb_ext.ExtImpMediaGo
+	err = json.Unmarshal(extBidder.Bidder, &extImpMediaGo)
+	if err != nil {
+		return nil, err
+	}
+	if extImpMediaGo.Token != "" {
+		extMediaGo.Token = extImpMediaGo.Token
+		extMediaGo.Region = extImpMediaGo.Region
+
+		return &extMediaGo, nil
+	}
+	return nil, errors.New("mediago token not found")
+
+}
+
+func getRegionInfo(region string) string {
+	switch region {
+	case "APAC":
+		return "jp"
+	case "EU":
+		return "eu"
+	case "US":
+		return "us"
+	default:
+		return "us"
+	}
+}
+
+func (a *adapter) getEndPoint(ext *openrtb_ext.ExtMediaGo) (string, error) {
+	endPointParams := macros.EndpointTemplateParams{
+		AccountID: url.PathEscape(ext.Token),
+		Host:      url.PathEscape(getRegionInfo(ext.Region)),
+	}
+	return macros.ResolveMacros(a.EndpointTemplate, endPointParams)
+}
+
+func preProcess(request *openrtb2.BidRequest) {
+	for i := range request.Imp {
+		if request.Imp[i].Banner != nil {
+			banner := *request.Imp[i].Banner
+			if (banner.W == nil || banner.H == nil || *banner.W == 0 || *banner.H == 0) && len(banner.Format) > 0 {
+				firstFormat := banner.Format[0]
+				banner.W = &firstFormat.W
+				banner.H = &firstFormat.H
+				request.Imp[i].Banner = &banner
+			}
+		}
+	}
+}
+
+func (a *adapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest *adapters.RequestData, response *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+	if adapters.IsResponseStatusCodeNoContent(response) {
+		return nil, nil
+	}
+	if err := adapters.CheckResponseStatusCodeForErrors(response); err != nil {
+		return nil, []error{err}
+	}
+
+	var bidResp openrtb2.BidResponse
+	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+		return nil, []error{err}
+	}
+
+	bidResponse := adapters.NewBidderResponseWithBidsCapacity(1)
+	var errs []error
+
+	for _, seatBid := range bidResp.SeatBid {
+		for idx := range seatBid.Bid {
+			mediaType, err := getBidType(seatBid.Bid[idx], internalRequest.Imp)
+			if err != nil {
+				errs = append(errs, err)
+			} else {
+				bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
+					Bid:     &seatBid.Bid[idx],
+					BidType: mediaType,
+				})
+			}
+		}
+	}
+
+	return bidResponse, errs
+}
+
+func getBidType(bid openrtb2.Bid, imps []openrtb2.Imp) (openrtb_ext.BidType, error) {
+	switch bid.MType {
+	case openrtb2.MarkupBanner:
+		return openrtb_ext.BidTypeBanner, nil
+	case openrtb2.MarkupNative:
+		return openrtb_ext.BidTypeNative, nil
+	default:
+		for _, imp := range imps {
+			if imp.ID == bid.ImpID {
+				if imp.Banner != nil {
+					return openrtb_ext.BidTypeBanner, nil
+				}
+				if imp.Native != nil {
+					return openrtb_ext.BidTypeNative, nil
+				}
+			}
+		}
+		return "", &errortypes.BadServerResponse{
+			Message: fmt.Sprintf("Unsupported MType %d", bid.MType),
+		}
+	}
+
+}
diff --git a/adapters/mediago/mediago_test.go b/adapters/mediago/mediago_test.go
new file mode 100644
index 00000000000..2ac094045e5
--- /dev/null
+++ b/adapters/mediago/mediago_test.go
@@ -0,0 +1,28 @@
+package mediago
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/prebid/prebid-server/v2/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v2/config"
+	"github.com/prebid/prebid-server/v2/openrtb_ext"
+)
+
+func TestJsonSamples(t *testing.T) {
+	bidder, buildErr := Builder(openrtb_ext.BidderMediaGo, config.Adapter{
+		Endpoint: "https://REGION.mediago.io/api/bid?tn={{.AccountID}}"}, config.Server{ExternalUrl: "http://hosturl.com", GvlID: 1, DataCenter: "2"})
+
+	if buildErr != nil {
+		t.Fatalf("Builder returned unexpected error %v", buildErr)
+	}
+
+	adapterstest.RunJSONBidderTest(t, "mediagotest", bidder)
+}
+
+func TestEndpointTemplateMalformed(t *testing.T) {
+	_, buildErr := Builder(openrtb_ext.BidderMediaGo, config.Adapter{Endpoint: "{{Malformed}}"}, config.Server{ExternalUrl: "http://hosturl.com", GvlID: 1, DataCenter: "2"})
+
+	assert.Error(t, buildErr)
+}
diff --git a/adapters/mediago/mediagotest/exemplary/sample-banner-apac.json b/adapters/mediago/mediagotest/exemplary/sample-banner-apac.json
new file mode 100644
index 00000000000..79105827da3
--- /dev/null
+++ b/adapters/mediago/mediagotest/exemplary/sample-banner-apac.json
@@ -0,0 +1,114 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId",
+            "region": "APAC"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    },
+    "ext": {
+      "prebid": {
+        "bidderparams": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "region": "APAC"
+          }
+        }
+      }
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "region": "APAC",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          },
+          "ext": {
+            "prebid": {
+              "bidderparams": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "region": "APAC"
+                }
+              }
+            }
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "mediago",
+              "bid": [{
+                "id": "test-imp-id",
+                "impid": "test-imp-id",
+                "price": 0.5,
+                "adm": "some-ads",
+                "crid": "crid_testid"
+              }]
+            }
+          ],
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 0.5,
+            "adm": "some-ads",
+            "crid": "crid_testid"
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/exemplary/sample-banner-euc.json b/adapters/mediago/mediagotest/exemplary/sample-banner-euc.json
new file mode 100644
index 00000000000..98e37ab9912
--- /dev/null
+++ b/adapters/mediago/mediagotest/exemplary/sample-banner-euc.json
@@ -0,0 +1,114 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId",
+            "region": "EU"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    },
+    "ext": {
+      "prebid": {
+        "bidderparams": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "region": "EU"
+          }
+        }
+      }
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "region": "EU",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          },
+          "ext": {
+            "prebid": {
+              "bidderparams": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "region": "EU"
+                }
+              }
+            }
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "mediago",
+              "bid": [{
+                "id": "test-imp-id",
+                "impid": "test-imp-id",
+                "price": 0.5,
+                "adm": "some-ads",
+                "crid": "crid_testid"
+              }]
+            }
+          ],
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 0.5,
+            "adm": "some-ads",
+            "crid": "crid_testid"
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/exemplary/sample-banner-fallback-to-first-imp-to-get-ep.json b/adapters/mediago/mediagotest/exemplary/sample-banner-fallback-to-first-imp-to-get-ep.json
new file mode 100644
index 00000000000..b396be54bf6
--- /dev/null
+++ b/adapters/mediago/mediagotest/exemplary/sample-banner-fallback-to-first-imp-to-get-ep.json
@@ -0,0 +1,94 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId",
+            "region": "US"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "region": "US",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "mediago",
+              "bid": [{
+                "id": "test-imp-id",
+                "impid": "test-imp-id",
+                "price": 0.5,
+                "adm": "some-ads",
+                "crid": "crid_testid"
+              }]
+            }
+          ],
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 0.5,
+            "adm": "some-ads",
+            "crid": "crid_testid"
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/exemplary/sample-banner-use.json b/adapters/mediago/mediagotest/exemplary/sample-banner-use.json
new file mode 100644
index 00000000000..b157b5a6a57
--- /dev/null
+++ b/adapters/mediago/mediagotest/exemplary/sample-banner-use.json
@@ -0,0 +1,114 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId",
+            "region": "US"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    },
+    "ext": {
+      "prebid": {
+        "bidderparams": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "region": "US"
+          }
+        }
+      }
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "region": "US",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          },
+          "ext": {
+            "prebid": {
+              "bidderparams": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "region": "US"
+                }
+              }
+            }
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "mediago",
+              "bid": [{
+                "id": "test-imp-id",
+                "impid": "test-imp-id",
+                "price": 0.5,
+                "adm": "some-ads",
+                "crid": "crid_testid"
+              }]
+            }
+          ],
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 0.5,
+            "adm": "some-ads",
+            "crid": "crid_testid"
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/exemplary/sample-banner.json b/adapters/mediago/mediagotest/exemplary/sample-banner.json
new file mode 100644
index 00000000000..41effb8509b
--- /dev/null
+++ b/adapters/mediago/mediagotest/exemplary/sample-banner.json
@@ -0,0 +1,112 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    },
+    "ext": {
+      "prebid": {
+        "bidderparams": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "region": "US"
+          }
+        }
+      }
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          },
+          "ext": {
+            "prebid": {
+              "bidderparams": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "region": "US"
+                }
+              }
+            }
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "mediago",
+              "bid": [{
+                "id": "test-imp-id",
+                "impid": "test-imp-id",
+                "price": 0.5,
+                "adm": "some-ads",
+                "crid": "crid_testid"
+              }]
+            }
+          ],
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 0.5,
+            "adm": "some-ads",
+            "crid": "crid_testid"
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/exemplary/sample-native.json b/adapters/mediago/mediagotest/exemplary/sample-native.json
new file mode 100644
index 00000000000..eb302df2375
--- /dev/null
+++ b/adapters/mediago/mediagotest/exemplary/sample-native.json
@@ -0,0 +1,91 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "native": {
+          "request": "{\"ver\":\"1.2\",\"context\":1,\"plcmttype\":4,\"plcmtcnt\":1,\"assets\":[{\"id\":2,\"required\":1,\"title\":{\"len\":90}},{\"id\":6,\"required\":1,\"img\":{\"type\":3,\"wmin\":128,\"hmin\":128,\"mimes\":[\"image/jpg\",\"image/jpeg\",\"image/png\"]}},{\"id\":7,\"required\":1,\"data\":{\"type\":2,\"len\":120}}]}",
+          "ver": "1.2"
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+  "httpcalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "native": {
+                "request": "{\"ver\":\"1.2\",\"context\":1,\"plcmttype\":4,\"plcmtcnt\":1,\"assets\":[{\"id\":2,\"required\":1,\"title\":{\"len\":90}},{\"id\":6,\"required\":1,\"img\":{\"type\":3,\"wmin\":128,\"hmin\":128,\"mimes\":[\"image/jpg\",\"image/jpeg\",\"image/png\"]}},{\"id\":7,\"required\":1,\"data\":{\"type\":2,\"len\":120}}]}",
+                "ver": "1.2"
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "bid": [
+                {
+                  "id": "test-imp-id",
+                  "impid": "test-imp-id",
+                  "price": 1.2,
+                  "adm": "some ads",
+                  "crid": "crid_testid"
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 1.2,
+            "adm": "some ads",
+            "crid": "crid_testid"
+
+          },
+          "type": "native"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/exemplary/sample-nobid.json b/adapters/mediago/mediagotest/exemplary/sample-nobid.json
new file mode 100644
index 00000000000..7c2d7e351b3
--- /dev/null
+++ b/adapters/mediago/mediagotest/exemplary/sample-nobid.json
@@ -0,0 +1,62 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 204,
+        "body": {}
+      }
+    }
+  ],
+
+  "expectedBidResponses": []
+
+}
diff --git a/adapters/mediago/mediagotest/exemplary/sample-with-mtype.json b/adapters/mediago/mediagotest/exemplary/sample-with-mtype.json
new file mode 100644
index 00000000000..609b916757e
--- /dev/null
+++ b/adapters/mediago/mediagotest/exemplary/sample-with-mtype.json
@@ -0,0 +1,152 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+          }
+        }
+      },
+      {
+        "id":"test-imp-id2",
+        "native": {
+          "request": "{\"ver\":\"1.2\",\"context\":1,\"plcmttype\":4,\"plcmtcnt\":1,\"assets\":[{\"id\":2,\"required\":1,\"title\":{\"len\":90}},{\"id\":6,\"required\":1,\"img\":{\"type\":3,\"wmin\":128,\"hmin\":128,\"mimes\":[\"image/jpg\",\"image/jpeg\",\"image/png\"]}},{\"id\":7,\"required\":1,\"data\":{\"type\":2,\"len\":120}}]}",
+          "ver": "1.2"
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    },
+    "ext": {
+      "prebid": {
+        "bidderparams": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+          }
+        }
+      }
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+                }
+              }
+            },
+            {
+              "id":"test-imp-id2",
+              "native": {
+                "request": "{\"ver\":\"1.2\",\"context\":1,\"plcmttype\":4,\"plcmtcnt\":1,\"assets\":[{\"id\":2,\"required\":1,\"title\":{\"len\":90}},{\"id\":6,\"required\":1,\"img\":{\"type\":3,\"wmin\":128,\"hmin\":128,\"mimes\":[\"image/jpg\",\"image/jpeg\",\"image/png\"]}},{\"id\":7,\"required\":1,\"data\":{\"type\":2,\"len\":120}}]}",
+                "ver": "1.2"
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          },
+          "ext": {
+            "prebid": {
+              "bidderparams": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+                }
+              }
+            }
+          }
+        },
+        "impIDs":["test-imp-id", "test-imp-id2"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "mediago",
+              "bid": [{
+                "id": "test-imp-id",
+                "impid": "test-imp-id",
+                "price": 0.5,
+                "adm": "some-ads",
+                "crid": "crid_testid",
+                "mtype": 1
+              }, {
+                "id": "test-imp-id2",
+                "impid": "test-imp-id2",
+                "price": 1.2,
+                "adm": "some ads",
+                "crid": "crid_testid",
+                "mtype": 4
+              }]
+            }
+          ],
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 0.5,
+            "adm": "some-ads",
+            "crid": "crid_testid",
+            "mtype": 1
+          },
+          "type": "banner"
+        },
+        {
+          "bid": {
+            "id": "test-imp-id2",
+            "impid": "test-imp-id2",
+            "price": 1.2,
+            "adm": "some ads",
+            "crid": "crid_testid",
+            "mtype": 4
+          },
+          "type": "native"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/supplemental/bad_400_reponse.json b/adapters/mediago/mediagotest/supplemental/bad_400_reponse.json
new file mode 100644
index 00000000000..c40f0db418b
--- /dev/null
+++ b/adapters/mediago/mediagotest/supplemental/bad_400_reponse.json
@@ -0,0 +1,65 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 400
+      }
+    }
+  ],
+  "expectedBidResponses": [],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "Unexpected status code: 400. Run with request.debug = 1 for more info",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/supplemental/bad_500_reponse.json b/adapters/mediago/mediagotest/supplemental/bad_500_reponse.json
new file mode 100644
index 00000000000..b653b33eaac
--- /dev/null
+++ b/adapters/mediago/mediagotest/supplemental/bad_500_reponse.json
@@ -0,0 +1,66 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 500
+      }
+    }
+  ],
+  "expectedBidResponses": [],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "Unexpected status code: 500. Run with request.debug = 1 for more info",
+      "comparison": "literal"
+    }
+  ]
+
+}
diff --git a/adapters/mediago/mediagotest/supplemental/bad_imp_ext.json b/adapters/mediago/mediagotest/supplemental/bad_imp_ext.json
new file mode 100644
index 00000000000..191e4e33077
--- /dev/null
+++ b/adapters/mediago/mediagotest/supplemental/bad_imp_ext.json
@@ -0,0 +1,25 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": "badExt"
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+
+  "expectedMakeRequestsErrors": [
+    {
+      "value": "json: cannot unmarshal string into Go value of type adapters.ExtImpBidder",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/supplemental/bad_impext_bidder.json b/adapters/mediago/mediagotest/supplemental/bad_impext_bidder.json
new file mode 100644
index 00000000000..08e652b5cae
--- /dev/null
+++ b/adapters/mediago/mediagotest/supplemental/bad_impext_bidder.json
@@ -0,0 +1,27 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": "badBidder"
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+
+  "expectedMakeRequestsErrors": [
+    {
+      "value": "json: cannot unmarshal string into Go value of type openrtb_ext.ExtImpMediaGo",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/supplemental/bad_request_no_token.json b/adapters/mediago/mediagotest/supplemental/bad_request_no_token.json
new file mode 100644
index 00000000000..51034b2eefd
--- /dev/null
+++ b/adapters/mediago/mediagotest/supplemental/bad_request_no_token.json
@@ -0,0 +1,30 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "placementId": "testPlacementId",
+            "region": "APAC"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+
+  "expectedMakeRequestsErrors": [
+    {
+      "value": "mediago token not found",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/supplemental/bad_response.json b/adapters/mediago/mediagotest/supplemental/bad_response.json
new file mode 100644
index 00000000000..d72ea408d39
--- /dev/null
+++ b/adapters/mediago/mediagotest/supplemental/bad_response.json
@@ -0,0 +1,66 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+            "placementId": "testPlacementId"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b",
+                  "placementId": "testPlacementId"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": "{\"id\":test-request-id"
+      }
+    }
+  ],
+
+  "expectedMakeBidsErrors": [
+    {
+      "comparison": "literal",
+      "value": "json: cannot unmarshal string into Go value of type openrtb2.BidResponse"
+    }
+  ]
+}
diff --git a/adapters/mediago/mediagotest/supplemental/bad_response_error_mtype.json b/adapters/mediago/mediagotest/supplemental/bad_response_error_mtype.json
new file mode 100644
index 00000000000..65167e04c5a
--- /dev/null
+++ b/adapters/mediago/mediagotest/supplemental/bad_response_error_mtype.json
@@ -0,0 +1,134 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [{"w": 320, "h": 50}]
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+          }
+        }
+      },
+      {
+        "id":"test-imp-id2",
+        "native": {
+          "request": "{\"ver\":\"1.2\",\"context\":1,\"plcmttype\":4,\"plcmtcnt\":1,\"assets\":[{\"id\":2,\"required\":1,\"title\":{\"len\":90}},{\"id\":6,\"required\":1,\"img\":{\"type\":3,\"wmin\":128,\"hmin\":128,\"mimes\":[\"image/jpg\",\"image/jpeg\",\"image/png\"]}},{\"id\":7,\"required\":1,\"data\":{\"type\":2,\"len\":120}}]}",
+          "ver": "1.2"
+        },
+        "ext": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+          }
+        }
+      }
+    ],
+    "site": {
+      "id": "test-site-id",
+      "page": "https://www.example.com/"
+    },
+    "ext": {
+      "prebid": {
+        "bidderparams": {
+          "bidder": {
+            "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+          }
+        }
+      }
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "https://REGION.mediago.io/api/bid?tn=f9f2b1ef23fe2759c2cad0953029a94b",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id":"test-imp-id",
+              "banner": {
+                "format": [{"w": 320, "h": 50}],
+                "w": 320,
+                "h": 50
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+                }
+              }
+            },
+            {
+              "id":"test-imp-id2",
+              "native": {
+                "request": "{\"ver\":\"1.2\",\"context\":1,\"plcmttype\":4,\"plcmtcnt\":1,\"assets\":[{\"id\":2,\"required\":1,\"title\":{\"len\":90}},{\"id\":6,\"required\":1,\"img\":{\"type\":3,\"wmin\":128,\"hmin\":128,\"mimes\":[\"image/jpg\",\"image/jpeg\",\"image/png\"]}},{\"id\":7,\"required\":1,\"data\":{\"type\":2,\"len\":120}}]}",
+                "ver": "1.2"
+              },
+              "ext": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+                }
+              }
+            }
+          ],
+          "site": {
+            "id": "test-site-id",
+            "page": "https://www.example.com/"
+          },
+          "ext": {
+            "prebid": {
+              "bidderparams": {
+                "bidder": {
+                  "token": "f9f2b1ef23fe2759c2cad0953029a94b"
+                }
+              }
+            }
+          }
+        },
+        "impIDs":["test-imp-id", "test-imp-id2"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "mediago",
+              "bid": [{
+                "id": "test-imp-id",
+                "price": 0.5,
+                "adm": "some-ads",
+                "crid": "crid_testid",
+                "mtype": 2
+              }, {
+                "id": "test-imp-id2",
+                "price": 1.2,
+                "adm": "some ads",
+                "crid": "crid_testid",
+                "mtype": 5
+              }]
+            }
+          ],
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [{
+    "currency": "USD",
+    "bids": []
+  }],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "Unsupported MType 2",
+      "comparison": "literal"
+    },
+    {
+      "value": "Unsupported MType 5",
+      "comparison": "literal"
+    }
+  ]
+}
diff --git a/adapters/mediago/params_test.go b/adapters/mediago/params_test.go
new file mode 100644
index 00000000000..187248a45bf
--- /dev/null
+++ b/adapters/mediago/params_test.go
@@ -0,0 +1,50 @@
+package mediago
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/prebid/prebid-server/v2/openrtb_ext"
+)
+
+func TestValidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch the json-schemas. %v", err)
+	}
+
+	for _, validParam := range validParams {
+		if err := validator.Validate(openrtb_ext.BidderMediaGo, json.RawMessage(validParam)); err != nil {
+			t.Errorf("Schema rejected mediago params: %s", validParam)
+		}
+	}
+}
+
+// TestInvalidParams makes sure that the mediago schema rejects all the imp.ext fields we don't support.
+func TestInvalidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch the json-schemas. %v", err)
+	}
+
+	for _, invalidParam := range invalidParams {
+		if err := validator.Validate(openrtb_ext.BidderMediaGo, json.RawMessage(invalidParam)); err == nil {
+			t.Errorf("Schema allowed unexpected params: %s", invalidParam)
+		}
+	}
+}
+
+var validParams = []string{
+	`{"token": "f9f2b1ef23fe2759c2cad0953029a94b"}`,
+	`{"token": "f9f2b1ef23fe2759c2cad0953029a94b", "region": "APAC"}`,
+	`{"token": "f9f2b1ef23fe2759c2cad0953029a94b", "region": "US"}`,
+	`{"token": "f9f2b1ef23fe2759c2cad0953029a94b", "region": "EU"}`,
+}
+
+var invalidParams = []string{
+	`{}`,
+	`{"tn": "f9f2b1ef23fe2759c2cad0953029a94b"}`,
+	`{"region": "APAC"}`,
+	`{"region": "US"}`,
+	`{"tn": "f9f2b1ef23fe2759c2cad0953029a94b", "region": "EU"}`,
+}
diff --git a/exchange/adapter_builders.go b/exchange/adapter_builders.go
index f4a2e8ec7fa..80c5910b1dc 100755
--- a/exchange/adapter_builders.go
+++ b/exchange/adapter_builders.go
@@ -123,6 +123,7 @@ import (
 	"github.com/prebid/prebid-server/v2/adapters/mabidder"
 	"github.com/prebid/prebid-server/v2/adapters/madvertise"
 	"github.com/prebid/prebid-server/v2/adapters/marsmedia"
+	"github.com/prebid/prebid-server/v2/adapters/mediago"
 	"github.com/prebid/prebid-server/v2/adapters/medianet"
 	"github.com/prebid/prebid-server/v2/adapters/mgid"
 	"github.com/prebid/prebid-server/v2/adapters/mgidX"
@@ -338,6 +339,7 @@ func newAdapterBuilders() map[openrtb_ext.BidderName]adapters.Builder {
 		openrtb_ext.BidderMadvertise:        madvertise.Builder,
 		openrtb_ext.BidderMarsmedia:         marsmedia.Builder,
 		openrtb_ext.BidderMediafuse:         appnexus.Builder,
+		openrtb_ext.BidderMediaGo:           mediago.Builder,
 		openrtb_ext.BidderMedianet:          medianet.Builder,
 		openrtb_ext.BidderMgid:              mgid.Builder,
 		openrtb_ext.BidderMgidX:             mgidX.Builder,
diff --git a/openrtb_ext/bidders.go b/openrtb_ext/bidders.go
index 49f5d317ff8..a70a0964602 100644
--- a/openrtb_ext/bidders.go
+++ b/openrtb_ext/bidders.go
@@ -141,6 +141,7 @@ var coreBidderNames []BidderName = []BidderName{
 	BidderMadvertise,
 	BidderMarsmedia,
 	BidderMediafuse,
+	BidderMediaGo,
 	BidderMedianet,
 	BidderMgid,
 	BidderMgidX,
@@ -453,6 +454,7 @@ const (
 	BidderMadvertise        BidderName = "madvertise"
 	BidderMarsmedia         BidderName = "marsmedia"
 	BidderMediafuse         BidderName = "mediafuse"
+	BidderMediaGo           BidderName = "mediago"
 	BidderMedianet          BidderName = "medianet"
 	BidderMgid              BidderName = "mgid"
 	BidderMgidX             BidderName = "mgidX"
diff --git a/openrtb_ext/imp_mediago.go b/openrtb_ext/imp_mediago.go
new file mode 100644
index 00000000000..89a5ff0dade
--- /dev/null
+++ b/openrtb_ext/imp_mediago.go
@@ -0,0 +1,13 @@
+package openrtb_ext
+
+// ExtImpMediaGo defines the contract for bidrequest.imp[i].ext.prebid.bidder.mediago
+type ExtImpMediaGo struct {
+	Token       string `json:"token"`
+	Region      string `json:"region"`
+	PlacementId string `json:"placementId"`
+}
+
+type ExtMediaGo struct {
+	Token  string `json:"token"`
+	Region string `json:"region"`
+}
diff --git a/static/bidder-info/mediago.yaml b/static/bidder-info/mediago.yaml
new file mode 100644
index 00000000000..78b03e2595a
--- /dev/null
+++ b/static/bidder-info/mediago.yaml
@@ -0,0 +1,26 @@
+# Contact ext_mediago_cm@baidu.com to ask about enabling a connection to the MediaGo DSP.
+# We have the following regional endpoint domains: rtb-us, rtb-eu, rtb-jp
+# Please deploy this config in each of your datacenters with the appropriate regional subdomain
+endpoint: "https://REGION.mediago.io/api/bid?tn={{.AccountID}}"
+endpointCompression: gzip
+geoscope:
+  - USA
+  - DEU
+  - JPN
+  - GBR
+  - KOR
+  - CAN
+  - FRA
+  - ITA
+maintainer:
+  email: ext_mediago_cm@baidu.com
+gvlVendorID: 1020
+capabilities:
+  site:
+    mediaTypes:
+      - banner
+      - native
+userSync:
+  redirect:
+    url:  https://trace.mediago.io/ju/cs/prebid?gdpr={{.GDPR}}&gdpr_consent={{.GDPRConsent}}&us_privacy={{.USPrivacy}}&redirect={{.RedirectURL}}
+    userMacro: $UID
\ No newline at end of file
diff --git a/static/bidder-params/mediago.json b/static/bidder-params/mediago.json
new file mode 100644
index 00000000000..ce482964d85
--- /dev/null
+++ b/static/bidder-params/mediago.json
@@ -0,0 +1,24 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "MediaGo Adapter Params",
+  "description": "A schema which validates params accepted by the MediaGo adapter",
+  "type": "object",
+  "properties": {
+    "token": {
+      "type": "string",
+      "description": "Publisher token，communicate with MediaGo to obtain it. This parameter expects all imps to be the same.",
+      "minLength": 1
+    },
+    "region": {
+      "type": "string",
+      "enum": ["US", "EU", "APAC"],
+      "description": "Server region for PBS request: US for US Region, EU for EU Region, APAC for APAC Region, default is US. This parameter expects all imps to be the same"
+    },
+    "placementId": {
+      "type": "string",
+      "description": "The AD placement ID.",
+      "minLength": 1
+    }
+  },
+  "required": ["token"]
+}
\ No newline at end of file