diff --git a/adapters/oprx/oprx.go b/adapters/oprx/oprx.go
new file mode 100644
index 00000000000..cfcf657b6fd
--- /dev/null
+++ b/adapters/oprx/oprx.go
@@ -0,0 +1,94 @@
+package oprx
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+)
+
+type adapter struct {
+	endpoint string
+}
+
+func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
+	bidder := &adapter{
+		endpoint: config.Endpoint,
+	}
+	return bidder, nil
+}
+
+func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+	requestJSON, err := jsonutil.Marshal(request)
+	if err != nil {
+		return nil, []error{err}
+	}
+
+	requestData := &adapters.RequestData{
+		Method: "POST",
+		Uri:    a.endpoint,
+		Body:   requestJSON,
+		ImpIDs: openrtb_ext.GetImpIDs(request.Imp),
+	}
+
+	return []*adapters.RequestData{requestData}, nil
+}
+
+func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+	if adapters.IsResponseStatusCodeNoContent(responseData) {
+		return nil, nil
+	}
+
+	if err := adapters.CheckResponseStatusCodeForErrors(responseData); err != nil {
+		return nil, []error{err}
+	}
+
+	if responseData.StatusCode != http.StatusOK {
+		err := &errortypes.BadServerResponse{
+			Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info.", responseData.StatusCode),
+		}
+		return nil, []error{err}
+	}
+
+	var response openrtb2.BidResponse
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
+		return nil, []error{err}
+	}
+
+	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
+	bidResponse.Currency = response.Cur
+	var errors []error
+	for _, seatBid := range response.SeatBid {
+		for i, bid := range seatBid.Bid {
+			bidType, err := getMediaTypeForBid(bid)
+			if err != nil {
+				errors = append(errors, err)
+				continue
+			}
+			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
+				Bid:     &seatBid.Bid[i],
+				BidType: bidType,
+			})
+		}
+	}
+	return bidResponse, nil
+}
+
+func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
+	if bid.Ext != nil {
+		var bidExt openrtb_ext.ExtBid
+		err := jsonutil.Unmarshal(bid.Ext, &bidExt)
+		if err == nil && bidExt.Prebid != nil {
+			return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
+		}
+	}
+
+	return "", &errortypes.BadServerResponse{
+		Message: fmt.Sprintf("Failed to parse impression \"%s\" mediatype", bid.ImpID),
+	}
+}
diff --git a/adapters/oprx/oprx_test.go b/adapters/oprx/oprx_test.go
new file mode 100644
index 00000000000..392672215dc
--- /dev/null
+++ b/adapters/oprx/oprx_test.go
@@ -0,0 +1,21 @@
+package oprx
+
+import (
+	"testing"
+
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+)
+
+func TestJsonSamples(t *testing.T) {
+	bidder, buildErr := Builder(openrtb_ext.BidderOprx, config.Adapter{
+		Endpoint: "http://localhost:8080"},
+		config.Server{ExternalUrl: "http://hosturl.com", GvlID: 1, DataCenter: "2"})
+
+	if buildErr != nil {
+		t.Fatalf("Builder returned unexpected error %v", buildErr)
+	}
+
+	adapterstest.RunJSONBidderTest(t, "oprxtest", bidder)
+}
diff --git a/adapters/oprx/oprxtest/exemplary/banner.json b/adapters/oprx/oprxtest/exemplary/banner.json
new file mode 100644
index 00000000000..b24649e199a
--- /dev/null
+++ b/adapters/oprx/oprxtest/exemplary/banner.json
@@ -0,0 +1,121 @@
+{
+  "mockBidRequest": {
+    "id": "request-id",
+    "imp": [
+      {
+        "id": "imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "key": "p123",
+            "placement_id": "my-placement-id",
+            "bid-floor": 0.5,
+            "npi": "my-npi",
+            "ndc": "my-ndc"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [{
+    "expectedRequest": {
+      "uri": "http://localhost:8080",      
+      "body": {
+        "id": "request-id",
+        "imp": [
+          {
+            "id": "imp-id",
+            "banner": {
+              "format": [
+                {
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            },
+            "ext": {
+              "bidder": {
+                "key": "p123",
+                "placement_id": "my-placement-id",
+                "bid-floor": 0.5,
+                "npi": "my-npi",
+                "ndc": "my-ndc"
+              }
+            }
+          }
+        ]
+      },
+        "impIDs": ["imp-id"]
+    },
+    "mockResponse": {
+      "status": 200,
+        "body": {
+          "id": "request-id",
+          "seatbid": [
+            {
+              "seat": "958",
+              "bid": [
+                {
+                  "id": "bid-id",
+                  "impid": "imp-id",
+                  "price": 0.5,
+                  "adid": "29681110",
+                  "adm": "some-test-ad",
+                  "adomain": [
+                    "foo.com"
+                  ],
+                  "crid": "29681110",
+                  "h": 250,
+                  "w": 300,
+                  "dealid": "test deal",
+                  "ext": {
+                    "prebid": {
+                      "type": "banner"
+                    }
+                  }
+                }
+              ]
+            }
+          ],
+          "bidid": "request-id",
+          "cur": "USD"
+        }
+    }
+  }],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+                  "id": "bid-id",
+                  "impid": "imp-id",
+                  "price": 0.5,
+                  "adid": "29681110",
+                  "adm": "some-test-ad",
+                  "adomain": [
+                    "foo.com"
+                  ],
+                  "crid": "29681110",
+                  "h": 250,
+                  "w": 300,
+                  "dealid": "test deal",
+                  "ext": {
+                    "prebid": {
+                      "type": "banner"
+                    }
+                  }
+                },
+                "type": "banner"
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/adapters/oprx/oprxtest/exemplary/multi-imp.json b/adapters/oprx/oprxtest/exemplary/multi-imp.json
new file mode 100644
index 00000000000..9cb6bd4d9ec
--- /dev/null
+++ b/adapters/oprx/oprxtest/exemplary/multi-imp.json
@@ -0,0 +1,202 @@
+{
+  "mockBidRequest": {
+    "id": "request-id",
+    "imp": [
+      {
+        "id": "imp-id-1",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "key": "p123",
+            "placement_id": "my-placement-id-1",
+            "bid-floor": 0.5,
+            "npi": "my-npi-1",
+            "ndc": "my-ndc-1"
+          }
+        }
+      },
+      {
+        "id": "imp-id-2",
+        "banner": {
+          "format": [
+            {
+              "w": 350,
+              "h": 200
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "key": "p567",
+            "placement_id": "my-placement-id-2",
+            "bid-floor": 0.5,
+            "npi": "my-npi-2",
+            "ndc": "my-ndc-2"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [{
+    "expectedRequest": {
+      "uri": "http://localhost:8080",      
+      "body": {
+        "id": "request-id",
+        "imp": [
+          {
+            "id": "imp-id-1",
+            "banner": {
+              "format": [
+                {
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            },
+            "ext": {
+              "bidder": {
+                "key": "p123",
+                "placement_id": "my-placement-id-1",
+                "bid-floor": 0.5,
+                "npi": "my-npi-1",
+                "ndc": "my-ndc-1"
+              }
+            }
+          },
+          {
+            "id": "imp-id-2",
+            "banner": {
+              "format": [
+                {
+                  "w": 350,
+                  "h": 200
+                }
+              ]
+            },
+            "ext": {
+              "bidder": {
+                "key": "p567",
+                "placement_id": "my-placement-id-2",
+                "bid-floor": 0.5,
+                "npi": "my-npi-2",
+                "ndc": "my-ndc-2"
+              }
+            }
+          }
+        ]
+      },
+        "impIDs": ["imp-id-1", "imp-id-2"]
+    },
+    "mockResponse": {
+      "status": 200,
+        "body": {
+          "id": "request-id",
+          "seatbid": [
+            {
+              "seat": "958",
+              "bid": [
+                {
+                  "id": "bid-id-1",
+                  "impid": "imp-id-1",
+                  "price": 0.5,
+                  "adid": "29681111",
+                  "adm": "some-test-ad",
+                  "adomain": [
+                    "foo.com"
+                  ],
+                  "crid": "29681111",
+                  "h": 250,
+                  "w": 300,
+                  "dealid": "test deal 1",
+                  "ext": {
+                    "prebid": {
+                      "type": "banner"
+                    }
+                  }
+                },
+                {
+                  "id": "bid-id-2",
+                  "impid": "imp-id-2",
+                  "price": 0.5,
+                  "adid": "29681112",
+                  "adm": "some-test-ad",
+                  "adomain": [
+                    "foo.com"
+                  ],
+                  "crid": "29681112",
+                  "h": 200,
+                  "w": 350,
+                  "dealid": "test deal 2",
+                  "ext": {
+                    "prebid": {
+                      "type": "banner"
+                    }
+                  }
+                }
+              ]
+            }
+          ],
+          "bidid": "request-id",
+          "cur": "USD"
+        }
+    }
+  }],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": [
+        {
+          "bid": {
+                  "id": "bid-id-1",
+                  "impid": "imp-id-1",
+                  "price": 0.5,
+                  "adid": "29681111",
+                  "adm": "some-test-ad",
+                  "adomain": [
+                    "foo.com"
+                  ],
+                  "crid": "29681111",
+                  "h": 250,
+                  "w": 300,
+                  "dealid": "test deal 1",
+                  "ext": {
+                    "prebid": {
+                      "type": "banner"
+                    }
+                  }
+                },
+                "type": "banner"
+        },
+        {
+          "bid": {
+                  "id": "bid-id-2",
+                  "impid": "imp-id-2",
+                  "price": 0.5,
+                  "adid": "29681112",
+                  "adm": "some-test-ad",
+                  "adomain": [
+                    "foo.com"
+                  ],
+                  "crid": "29681112",
+                  "h": 200,
+                  "w": 350,
+                  "dealid": "test deal 2",
+                  "ext": {
+                    "prebid": {
+                      "type": "banner"
+                    }
+                  }
+                },
+                "type": "banner"
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/adapters/oprx/oprxtest/supplemental/bad-media-type.json b/adapters/oprx/oprxtest/supplemental/bad-media-type.json
new file mode 100644
index 00000000000..d523aa72fb7
--- /dev/null
+++ b/adapters/oprx/oprxtest/supplemental/bad-media-type.json
@@ -0,0 +1,95 @@
+{
+  "mockBidRequest": {
+    "id": "request-id",
+    "imp": [
+      {
+        "id": "imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "key": "p123",
+            "placement_id": "my-placement-id",
+            "bid-floor": 0.5,
+            "npi": "my-npi",
+            "ndc": "my-ndc"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [{
+    "expectedRequest": {
+      "uri": "http://localhost:8080",      
+      "body": {
+        "id": "request-id",
+        "imp": [
+          {
+            "id": "imp-id",
+            "banner": {
+              "format": [
+                {
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            },
+            "ext": {
+              "bidder": {
+                "key": "p123",
+                "placement_id": "my-placement-id",
+                "bid-floor": 0.5,
+                "npi": "my-npi",
+                "ndc": "my-ndc"
+              }
+            }
+          }
+        ]
+      },
+        "impIDs": ["imp-id"]
+    },"mockResponse": {
+      "status": 200,
+        "body": {
+          "id": "request-id",
+          "seatbid": [
+            {
+              "seat": "958",
+              "bid": [
+                {
+                  "id": "bid-id",
+                  "impid": "imp-id",
+                  "price": 0.5,
+                  "adid": "29681110",
+                  "adm": "some-test-ad",
+                  "adomain": [
+                    "foo.com"
+                  ],
+                  "crid": "29681110",
+                  "h": 250,
+                  "w": 300,
+                  "dealid": "test deal",
+                  "ext": {
+                    "prebid": {
+                      "type": "bamer"
+                    }
+                  }
+                }
+              ]
+            }
+          ],
+          "bidid": "request-id",
+          "cur": "USD"
+        }
+    }
+  }],
+  "expectedBidResponses": [{        
+    "currency": "USD",
+    "bids": []        
+}]
+}
\ No newline at end of file
diff --git a/adapters/oprx/oprxtest/supplemental/bad-request.json b/adapters/oprx/oprxtest/supplemental/bad-request.json
new file mode 100644
index 00000000000..18100fa3afc
--- /dev/null
+++ b/adapters/oprx/oprxtest/supplemental/bad-request.json
@@ -0,0 +1,68 @@
+{
+  "mockBidRequest": {
+    "id": "request-id",
+    "imp": [
+      {
+        "id": "imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "key": "p123",
+            "placement_id": "my-placement-id",
+            "bid-floor": 0.5,
+            "npi": "my-npi",
+            "ndc": "my-ndc"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [{
+    "expectedRequest": {
+      "uri": "http://localhost:8080",      
+      "body": {
+        "id": "request-id",
+        "imp": [
+          {
+            "id": "imp-id",
+            "banner": {
+              "format": [
+                {
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            },
+            "ext": {
+              "bidder": {
+                "key": "p123",
+                "placement_id": "my-placement-id",
+                "bid-floor": 0.5,
+                "npi": "my-npi",
+                "ndc": "my-ndc"
+              }
+            }
+          }
+        ]
+      },
+        "impIDs": ["imp-id"]
+    },
+    "mockResponse": {
+      "status": 400        
+    }
+  }],
+  "expectedBidResponses": [],
+  "expectedMakeBidsErrors": [
+        {
+            "value": "Unexpected status code: 400. Run with request.debug = 1 for more info",
+            "comparison": "literal"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/adapters/oprx/oprxtest/supplemental/no-bid.json b/adapters/oprx/oprxtest/supplemental/no-bid.json
new file mode 100644
index 00000000000..1e049f63f72
--- /dev/null
+++ b/adapters/oprx/oprxtest/supplemental/no-bid.json
@@ -0,0 +1,62 @@
+{
+  "mockBidRequest": {
+    "id": "request-id",
+    "imp": [
+      {
+        "id": "imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "key": "p123",
+            "placement_id": "my-placement-id",
+            "bid-floor": 0.5,
+            "npi": "my-npi",
+            "ndc": "my-ndc"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [{
+    "expectedRequest": {
+      "uri": "http://localhost:8080",      
+      "body": {
+        "id": "request-id",
+        "imp": [
+          {
+            "id": "imp-id",
+            "banner": {
+              "format": [
+                {
+                  "w": 300,
+                  "h": 250
+                }
+              ]
+            },
+            "ext": {
+              "bidder": {
+                "key": "p123",
+                "placement_id": "my-placement-id",
+                "bid-floor": 0.5,
+                "npi": "my-npi",
+                "ndc": "my-ndc"
+              }
+            }
+          }
+        ]
+      },
+        "impIDs": ["imp-id"]
+    },
+    "mockResponse": {
+      "status": 204        
+    }
+  }],
+  "expectedBidResponses": []
+}
\ No newline at end of file
diff --git a/adapters/oprx/params_test.go b/adapters/oprx/params_test.go
new file mode 100644
index 00000000000..b5afdf864c4
--- /dev/null
+++ b/adapters/oprx/params_test.go
@@ -0,0 +1,56 @@
+package oprx
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/prebid/prebid-server/v3/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 schema. %v", err)
+	}
+
+	for _, p := range validParams {
+		if err := validator.Validate(openrtb_ext.BidderOprx, json.RawMessage(p)); err != nil {
+			t.Errorf("Schema rejected valid params: %s", p)
+		}
+	}
+}
+
+func TestInvalidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch the json schema. %v", err)
+	}
+
+	for _, p := range invalidParams {
+		if err := validator.Validate(openrtb_ext.BidderOprx, json.RawMessage(p)); err == nil {
+			t.Errorf("Schema allowed invalid params: %s", p)
+		}
+	}
+}
+
+var validParams = []string{
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner"}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "width": 1234}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "height": 5678}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "bid_floor": 1.23}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "npi": "some npi"}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "ndc": "some ndc"}`,
+}
+
+var invalidParams = []string{
+	`{"key": 1234567, "placement_id": 1234567890, "type": "banner"}`,
+	`{"placement_id": "1234567890", "key": "some key", "type": "banner"}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": 12}`,
+	`{"key": "some key"}`,
+	`{"placement_id": 1234567890, "type": 12}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "width": "1234"}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "height": "5678"}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "bid_floor": "1.23"}`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "npi": 1223456`,
+	`{"key": "some key", "placement_id": 1234567890, "type": "banner", "ndc": 876543}`,
+}
diff --git a/exchange/adapter_builders.go b/exchange/adapter_builders.go
index 751934ac9bb..04247c67872 100755
--- a/exchange/adapter_builders.go
+++ b/exchange/adapter_builders.go
@@ -169,6 +169,7 @@ import (
 	"github.com/prebid/prebid-server/v3/adapters/openweb"
 	"github.com/prebid/prebid-server/v3/adapters/openx"
 	"github.com/prebid/prebid-server/v3/adapters/operaads"
+	"github.com/prebid/prebid-server/v3/adapters/oprx"
 	"github.com/prebid/prebid-server/v3/adapters/optidigital"
 	"github.com/prebid/prebid-server/v3/adapters/oraki"
 	"github.com/prebid/prebid-server/v3/adapters/orbidder"
@@ -427,6 +428,7 @@ func newAdapterBuilders() map[openrtb_ext.BidderName]adapters.Builder {
 		openrtb_ext.BidderOpenWeb:           openweb.Builder,
 		openrtb_ext.BidderOpenx:             openx.Builder,
 		openrtb_ext.BidderOperaads:          operaads.Builder,
+		openrtb_ext.BidderOprx:              oprx.Builder,
 		openrtb_ext.BidderOptidigital:       optidigital.Builder,
 		openrtb_ext.BidderOraki:             oraki.Builder,
 		openrtb_ext.BidderOrbidder:          orbidder.Builder,
diff --git a/openrtb_ext/bidders.go b/openrtb_ext/bidders.go
index 102c9094c32..47004b3abb8 100644
--- a/openrtb_ext/bidders.go
+++ b/openrtb_ext/bidders.go
@@ -187,6 +187,7 @@ var coreBidderNames []BidderName = []BidderName{
 	BidderOpenWeb,
 	BidderOpenx,
 	BidderOperaads,
+	BidderOprx,
 	BidderOptidigital,
 	BidderOraki,
 	BidderOrbidder,
@@ -549,6 +550,7 @@ const (
 	BidderOpenWeb           BidderName = "openweb"
 	BidderOpenx             BidderName = "openx"
 	BidderOperaads          BidderName = "operaads"
+	BidderOprx              BidderName = "oprx"
 	BidderOptidigital       BidderName = "optidigital"
 	BidderOraki             BidderName = "oraki"
 	BidderOrbidder          BidderName = "orbidder"
diff --git a/openrtb_ext/imp_oprx.go b/openrtb_ext/imp_oprx.go
new file mode 100644
index 00000000000..96ce59c0b2e
--- /dev/null
+++ b/openrtb_ext/imp_oprx.go
@@ -0,0 +1,12 @@
+package openrtb_ext
+
+type ImpExtOprx struct {
+	Key         string  `json:"key"`
+	PlacementID int     `json:"placement_id"`
+	Width       int     `json:"width"`
+	Height      int     `json:"height"`
+	BidFloor    float64 `json:"bid_floor"`
+	Npi         string  `json:"npi"`
+	Ndc         string  `json:"ndc"`
+	Type        string  `json:"type"`
+}
diff --git a/static/bidder-info/oprx.yaml b/static/bidder-info/oprx.yaml
new file mode 100644
index 00000000000..346fca8b5c1
--- /dev/null
+++ b/static/bidder-info/oprx.yaml
@@ -0,0 +1,20 @@
+endpoint: "https://pb.optimizerx.com/pb"
+endpointCompression: gzip
+geoscope:
+  - USA
+  - CAN
+maintainer:
+  email: adsupport@optimizerx.com
+modifyingVastXmlAllowed: true
+openrtb:
+  version: 2.6
+capabilities:
+  app:
+    mediaTypes:
+      - banner
+  site:
+    mediaTypes:
+      - banner      
+  dooh:
+    mediaTypes:
+      - banner
\ No newline at end of file
diff --git a/static/bidder-params/oprx.json b/static/bidder-params/oprx.json
new file mode 100644
index 00000000000..1b59efc5f38
--- /dev/null
+++ b/static/bidder-params/oprx.json
@@ -0,0 +1,43 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "OptimizeRx Adapter Params",
+  "description": "A schema which validates params accepted by the OptimizeRx adapter",
+  "type": "object",
+
+  "properties": {
+    "key": {
+      "type": "string",
+      "description": "Key"
+    },
+    "placement_id": {
+      "type": "integer",
+      "description": "Placement ID"
+    },
+    "width": {
+      "type": "integer",
+      "description": "Banner Width"
+    },
+    "height": {
+      "type": "integer",
+      "description": "Banner Height"
+    },
+    "bid_floor": {
+      "type": "number",
+      "description": "Bidding Price Floor"
+    },
+    "npi": {
+      "type": "string",
+      "description": "NPI"
+    },
+    "ndc": {
+      "type": "string",
+      "description": "NDC"
+    },
+    "type": {
+      "type": "string",
+      "description": "Type of Bid/Impression"
+    }
+  },
+
+  "required": ["key", "placement_id", "type"]
+}
\ No newline at end of file