diff --git a/gate-core/src/main/groovy/com/netflix/spinnaker/gate/model/manageddelivery/RawDeliveryConfig.java b/gate-core/src/main/groovy/com/netflix/spinnaker/gate/model/manageddelivery/RawDeliveryConfig.java
new file mode 100644
index 0000000000..9f7a471f96
--- /dev/null
+++ b/gate-core/src/main/groovy/com/netflix/spinnaker/gate/model/manageddelivery/RawDeliveryConfig.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2019 Netflix, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.netflix.spinnaker.gate.model.manageddelivery;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import lombok.Data;
+import lombok.NonNull;
+
+@Data
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class RawDeliveryConfig {
+  @NonNull String content;
+}
diff --git a/gate-core/src/main/java/com/netflix/spinnaker/gate/services/internal/KeelService.java b/gate-core/src/main/java/com/netflix/spinnaker/gate/services/internal/KeelService.java
index 37b76efa4f..e2121cf036 100644
--- a/gate-core/src/main/java/com/netflix/spinnaker/gate/services/internal/KeelService.java
+++ b/gate-core/src/main/java/com/netflix/spinnaker/gate/services/internal/KeelService.java
@@ -24,6 +24,7 @@
 import com.netflix.spinnaker.gate.model.manageddelivery.EnvironmentArtifactVeto;
 import com.netflix.spinnaker.gate.model.manageddelivery.GraphQLRequest;
 import com.netflix.spinnaker.gate.model.manageddelivery.OverrideVerificationRequest;
+import com.netflix.spinnaker.gate.model.manageddelivery.RawDeliveryConfig;
 import com.netflix.spinnaker.gate.model.manageddelivery.Resource;
 import com.netflix.spinnaker.gate.model.manageddelivery.RetryVerificationRequest;
 import com.netflix.spinnaker.kork.plugins.SpinnakerPluginDescriptor;
@@ -79,9 +80,9 @@ List<Map<String, Object>> getResourceEvents(
   @GET("/delivery-configs/{name}/artifacts")
   List<Map<String, Object>> getManifestArtifacts(@Path("name") String name);
 
-  @POST("/delivery-configs")
+  @POST("/delivery-configs/upsertGate")
   @Headers("Accept: application/json")
-  DeliveryConfig upsertManifest(@Body DeliveryConfig manifest);
+  DeliveryConfig upsertManifest(@Body RawDeliveryConfig req);
 
   @DELETE("/delivery-configs/{name}")
   DeliveryConfig deleteManifest(@Path("name") String name);
diff --git a/gate-web/src/main/groovy/com/netflix/spinnaker/gate/controllers/ManagedController.java b/gate-web/src/main/groovy/com/netflix/spinnaker/gate/controllers/ManagedController.java
index bd43971857..ccf11e9ace 100644
--- a/gate-web/src/main/groovy/com/netflix/spinnaker/gate/controllers/ManagedController.java
+++ b/gate-web/src/main/groovy/com/netflix/spinnaker/gate/controllers/ManagedController.java
@@ -10,6 +10,7 @@
 import com.netflix.spinnaker.gate.model.manageddelivery.EnvironmentArtifactVeto;
 import com.netflix.spinnaker.gate.model.manageddelivery.GraphQLRequest;
 import com.netflix.spinnaker.gate.model.manageddelivery.OverrideVerificationRequest;
+import com.netflix.spinnaker.gate.model.manageddelivery.RawDeliveryConfig;
 import com.netflix.spinnaker.gate.model.manageddelivery.Resource;
 import com.netflix.spinnaker.gate.model.manageddelivery.RetryVerificationRequest;
 import com.netflix.spinnaker.gate.services.NotificationService;
@@ -20,13 +21,17 @@
 import io.github.resilience4j.retry.RetryRegistry;
 import io.swagger.annotations.ApiOperation;
 import java.io.IOException;
+import java.io.InputStream;
+import java.io.StringWriter;
 import java.nio.charset.StandardCharsets;
 import java.time.Duration;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+
 import lombok.SneakyThrows;
+import org.apache.commons.io.IOUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -194,16 +199,19 @@ List<Map<String, Object>> getManifestArtifacts(@PathVariable("name") String name
 
   @SneakyThrows
   @ApiOperation(
-      value = "Create or update a delivery config manifest",
-      response = DeliveryConfig.class)
+    value = "Create or update a delivery config manifest",
+    response = DeliveryConfig.class)
   @PostMapping(
-      path = "/delivery-configs",
-      consumes = {APPLICATION_JSON_VALUE, APPLICATION_YAML_VALUE},
-      produces = {APPLICATION_JSON_VALUE})
-  DeliveryConfig upsertManifest(@RequestBody DeliveryConfig manifest) {
+    path = "/delivery-configs",
+    consumes = {APPLICATION_JSON_VALUE, APPLICATION_YAML_VALUE},
+    produces = {APPLICATION_JSON_VALUE})
+  DeliveryConfig upsertManifestRaw(InputStream body) {
+    StringWriter writer = new StringWriter();
+    IOUtils.copy(body, writer, StandardCharsets.UTF_8);
+    RawDeliveryConfig config = new RawDeliveryConfig(writer.toString());
     return retryRegistry
-        .retry("managed-write")
-        .executeCallable(() -> keelService.upsertManifest(manifest));
+      .retry("managed-write")
+      .executeCallable(() -> keelService.upsertManifest(config));
   }
 
   @ApiOperation(value = "Delete a delivery config manifest", response = DeliveryConfig.class)