diff --git a/packages/generator-spectral/package.json b/packages/generator-spectral/package.json
index 15372e86..0e367140 100644
--- a/packages/generator-spectral/package.json
+++ b/packages/generator-spectral/package.json
@@ -40,7 +40,7 @@
   ],
   "dependencies": {
     "@apidevtools/swagger-parser": "10.1.0",
-    "@prismatic-io/spectral": "8.0.3",
+    "@prismatic-io/spectral": "8.0.4",
     "lodash": "4.17.21",
     "number-to-words": "1.2.4",
     "openapi-types": "11.0.1",
diff --git a/packages/spectral/package.json b/packages/spectral/package.json
index d6a62589..bf71e7e0 100644
--- a/packages/spectral/package.json
+++ b/packages/spectral/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@prismatic-io/spectral",
-  "version": "8.0.3",
+  "version": "8.0.4",
   "description": "Utility library for building Prismatic components",
   "keywords": [
     "prismatic"
diff --git a/packages/spectral/src/index.ts b/packages/spectral/src/index.ts
index aac570d2..79089e05 100644
--- a/packages/spectral/src/index.ts
+++ b/packages/spectral/src/index.ts
@@ -25,6 +25,7 @@ import {
   TriggerPayload,
   DataSourceConfigVar,
   ConfigPages,
+  OnPremiseConnectionDefinition,
 } from "./types";
 import { convertComponent } from "./serverTypes/convert";
 import { convertIntegration } from "./serverTypes/convertIntegration";
@@ -184,6 +185,16 @@ export const connection = <T extends DefaultConnectionDefinition>(
   definition: T
 ): T => definition;
 
+/**
+ * For information on writing custom component connections using on-premise resources, see
+ * https://prismatic.io/docs/custom-components/writing-custom-components/#adding-connections.
+ * @param definition An OnPremiseConnectionDefinition object that describes the type of a connection for a custom component action or trigger, and information on how it should be displayed in the Prismatic WebApp.
+ * @returns This function validates the shape of the `definition` object provided and returns the same connection object.
+ */
+export const onPremiseConnection = <T extends OnPremiseConnectionDefinition>(
+  definition: T
+): T => definition;
+
 /**
  * For information on writing custom component connections, see
  * https://prismatic.io/docs/custom-components/writing-custom-components/#adding-connections.
diff --git a/packages/spectral/src/serverTypes/index.ts b/packages/spectral/src/serverTypes/index.ts
index 4a74821c..42825ff9 100644
--- a/packages/spectral/src/serverTypes/index.ts
+++ b/packages/spectral/src/serverTypes/index.ts
@@ -206,7 +206,7 @@ export interface Connection {
   comments?: string;
   oauth2Type?: OAuth2Type;
   iconPath?: string;
-  inputs: (Input & { shown?: boolean })[];
+  inputs: (Input & { shown?: boolean; onPremiseControlled?: boolean })[];
 }
 
 export interface ConnectionValue {
diff --git a/packages/spectral/src/types-tests/ConnectionDefinition.test-d.ts b/packages/spectral/src/types-tests/ConnectionDefinition.test-d.ts
new file mode 100644
index 00000000..b7dc13ee
--- /dev/null
+++ b/packages/spectral/src/types-tests/ConnectionDefinition.test-d.ts
@@ -0,0 +1,64 @@
+import { expectAssignable, expectNotAssignable } from "tsd";
+import { onPremiseConnection, OnPremiseConnectionDefinition } from "..";
+
+const valid = onPremiseConnection({
+  key: "basic",
+  label: "Basic Connection",
+  inputs: {
+    host: {
+      label: "Host",
+      placeholder: "Host",
+      type: "string",
+      required: true,
+      shown: true,
+      onPremiseControlled: true,
+      example: "192.168.0.1",
+    },
+    port: {
+      label: "Port",
+      placeholder: "Port",
+      type: "string",
+      required: true,
+      shown: true,
+      onPremiseControlled: true,
+      default: "1433",
+    },
+    username: {
+      label: "Username",
+      placeholder: "Username",
+      type: "string",
+      required: false,
+      shown: true,
+    },
+    password: {
+      label: "Password",
+      placeholder: "Password",
+      type: "password",
+      required: false,
+      shown: true,
+    },
+  },
+});
+expectAssignable<OnPremiseConnectionDefinition>(valid);
+
+const invalid = {
+  key: "basic",
+  label: "Basic Connection",
+  inputs: {
+    username: {
+      label: "Username",
+      placeholder: "Username",
+      type: "string",
+      required: false,
+      shown: true,
+    },
+    password: {
+      label: "Password",
+      placeholder: "Password",
+      type: "password",
+      required: false,
+      shown: true,
+    },
+  },
+};
+expectNotAssignable<OnPremiseConnectionDefinition>(invalid);
diff --git a/packages/spectral/src/types/ConnectionDefinition.ts b/packages/spectral/src/types/ConnectionDefinition.ts
index 083e9592..5dc16dac 100644
--- a/packages/spectral/src/types/ConnectionDefinition.ts
+++ b/packages/spectral/src/types/ConnectionDefinition.ts
@@ -24,6 +24,17 @@ export interface DefaultConnectionDefinition extends BaseConnectionDefinition {
   };
 }
 
+type OnPremiseConnectionInput = ConnectionInput & { onPremiseControlled: true };
+
+export interface OnPremiseConnectionDefinition
+  extends BaseConnectionDefinition {
+  inputs: {
+    host: OnPremiseConnectionInput;
+    port: OnPremiseConnectionInput;
+    [key: string]: ConnectionInput;
+  };
+}
+
 interface OAuth2AuthorizationCodeConnectionDefinition
   extends BaseConnectionDefinition {
   oauth2Type: OAuth2Type.AuthorizationCode;
@@ -57,5 +68,5 @@ export type OAuth2ConnectionDefinition =
 
 export type ConnectionDefinition =
   | DefaultConnectionDefinition
-  | OAuth2AuthorizationCodeConnectionDefinition
-  | OAuth2ClientCredentialConnectionDefinition;
+  | OnPremiseConnectionDefinition
+  | OAuth2ConnectionDefinition;