diff --git a/adapters/blue/params_test.go b/adapters/blue/params_test.go
new file mode 100644
index 0000000000..27b1e02ea8
--- /dev/null
+++ b/adapters/blue/params_test.go
@@ -0,0 +1,51 @@
+package blue
+
+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-schemas. %v", err)
+	}
+
+	for _, validParam := range validParams {
+		if err := validator.Validate(openrtb_ext.BidderBlue, json.RawMessage(validParam)); err != nil {
+			t.Errorf("Schema rejected blue params: %s", validParam)
+		}
+	}
+}
+
+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.BidderBlue, json.RawMessage(invalidParam)); err == nil {
+			t.Errorf("Schema allowed unexpected params: %s", invalidParam)
+		}
+	}
+}
+
+var validParams = []string{
+	`{"publisherId":"1234"}`,
+	`{"publisherId":"1234", "placementId":"12345"}`,
+	`{"publisherId":"", "placementId":""}`,
+}
+
+var invalidParams = []string{
+	``,
+	`null`,
+	`true`,
+	`5`,
+	`4.2`,
+	`[]`,
+	`{}`,
+	`{"placementId":"12345"}`,
+}
diff --git a/static/bidder-params/blue.json b/static/bidder-params/blue.json
index 6624defd4d..537fc44da7 100644
--- a/static/bidder-params/blue.json
+++ b/static/bidder-params/blue.json
@@ -4,6 +4,10 @@
     "description": "A schema which validates params accepted by the Blue adapter",
     "type": "object",
     "properties": {
+        "placementId": {
+            "type": "string",
+            "description": "Placement ID provided by Blue"
+        },
         "publisherId": {
             "type": "string",
             "description": "The publisher’s ID provided by Blue"
@@ -12,4 +16,4 @@
     "required": [
         "publisherId"
     ]
-}
\ No newline at end of file
+}