diff --git a/extensions/sql-database-projects/src/dialogs/publishDatabaseQuickpick.ts b/extensions/sql-database-projects/src/dialogs/publishDatabaseQuickpick.ts
index 5c55bca81f..d4334e7c66 100644
--- a/extensions/sql-database-projects/src/dialogs/publishDatabaseQuickpick.ts
+++ b/extensions/sql-database-projects/src/dialogs/publishDatabaseQuickpick.ts
@@ -9,6 +9,7 @@ import { Project } from '../models/project';
 import { PublishProfile, readPublishProfile } from '../models/publishProfile/publishProfile';
 import { promptForPublishProfile } from './publishDatabaseDialog';
 import { getVscodeMssqlApi } from '../common/utils';
+import { IConnectionInfo } from 'vscode-mssql';
 
 /**
  * Create flow for Publishing a database using only VS Code-native APIs such as QuickPick
@@ -72,15 +73,19 @@ export async function launchPublishDatabaseQuickpick(project: Project): Promise<
 
 	// 2. Select connection
 	const vscodeMssqlApi = await getVscodeMssqlApi();
+	let connectionProfile: IConnectionInfo | undefined = undefined;
+	let connectionUri: string = '';
 	let dbs: string[] | undefined = undefined;
 	while (!dbs) {
-		const connectionProfile = await vscodeMssqlApi.promptForConnection(true);
+		connectionProfile = await vscodeMssqlApi.promptForConnection(true);
 		if (!connectionProfile) {
+			// User cancelled
 			return;
 		}
 		// Get the list of databases now to validate that the connection is valid and re-prompt them if it isn't
 		try {
-			dbs = await vscodeMssqlApi.listDatabases(connectionProfile);
+			connectionUri = await vscodeMssqlApi.connect(connectionProfile);
+			dbs = await vscodeMssqlApi.listDatabases(connectionUri);
 		} catch (err) {
 			// no-op, the mssql extension handles showing the error to the user. We'll just go
 			// back and prompt the user for a connection again
diff --git a/extensions/sql-database-projects/src/typings/vscode-mssql.d.ts b/extensions/sql-database-projects/src/typings/vscode-mssql.d.ts
index 94ec4fe523..66349feb05 100644
--- a/extensions/sql-database-projects/src/typings/vscode-mssql.d.ts
+++ b/extensions/sql-database-projects/src/typings/vscode-mssql.d.ts
@@ -26,6 +26,11 @@ declare module 'vscode-mssql' {
          */
         readonly dacFx: IDacFxService;
 
+        /**
+         * Service for accessing SchemaCompare functionality
+         */
+        readonly schemaCompare: ISchemaCompareService;
+
         /**
          * Prompts the user to select an existing connection or create a new one, and then returns the result
          * @param ignoreFocusOut Whether the quickpick prompt ignores focus out (default false)
@@ -33,11 +38,19 @@ declare module 'vscode-mssql' {
         promptForConnection(ignoreFocusOut?: boolean): Promise<IConnectionInfo | undefined>;
 
         /**
-         * Lists the databases for a given connection. An error is thrown and displayed to the user if an
-         * error occurs while connecting
-         * @param connection The connection to list the databases for
+         * Attempts to create a new connection for the given connection info. An error is thrown and displayed
+         * to the user if an error occurs while connecting.
+         * @param connectionInfo The connection info
+         * @returns The URI associated with this connection
          */
-        listDatabases(connection: IConnectionInfo): Promise<string[]>;
+        connect(connectionInfo: IConnectionInfo): Promise<string>;
+
+        /**
+         * Lists the databases for a given connection. Must be given an already-opened connection to succeed.
+         * @param connectionUri The URI of the connection to list the databases for.
+         * @returns The list of database names
+         */
+        listDatabases(connectionUri: string): Promise<string[]>;
     }
 
     /**
@@ -212,6 +225,10 @@ declare module 'vscode-mssql' {
         schemaObjectType = 5
     }
 
+    export interface ISchemaCompareService {
+        schemaCompareGetDefaultOptions(): Thenable<SchemaCompareOptionsResult>;
+    }
+
     export interface IDacFxService {
         exportBacpac(databaseName: string, packageFilePath: string, ownerUri: string, taskExecutionMode: TaskExecutionMode): Thenable<DacFxResult>;
         importBacpac(packageFilePath: string, databaseName: string, ownerUri: string, taskExecutionMode: TaskExecutionMode): Thenable<DacFxResult>;
@@ -467,4 +484,10 @@ declare module 'vscode-mssql' {
         createStreamingJobTsql: string;
     }
 
+    export interface SchemaCompareGetOptionsParams { }
+
+    export interface SchemaCompareOptionsResult extends ResultStatus {
+        defaultDeploymentOptions: DeploymentOptions;
+    }
+
 }