diff --git a/.github/workflows/integration-test-callable-from-server-repo.yml b/.github/workflows/integration-test-callable-from-server-repo.yml
new file mode 100644
index 00000000..c6179c1c
--- /dev/null
+++ b/.github/workflows/integration-test-callable-from-server-repo.yml
@@ -0,0 +1,61 @@
+name: Integration Test
+
+on:
+  workflow_call:
+    inputs:
+      speckle-sharp-sdk-ref:
+        required: true
+        type: string
+
+jobs:
+  integration-test:
+    env:
+      CLIENT_DIR: "./client"
+      CLIENT_REPO: "specklesystems/speckle-sharp-sdk"
+      SERVER_DIR: "./server"
+      SERVER_REPO: "specklesystems/speckle-server-internal"
+      SOLUTION: "Speckle.Sdk.sln"
+      SPECKLE_SERVER_IMAGE: "speckle-server:local"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout ${{ env.CLIENT_REPO }}
+        uses: actions/checkout@v6
+        with:
+          path: ${{ env.CLIENT_DIR }}
+          repository: ${{ env.CLIENT_REPO }}
+          ref: ${{ inputs.speckle-sharp-sdk-ref }}
+
+      - name: Checkout ${{ env.SERVER_REPO }}
+        uses: actions/checkout@v6
+        with:
+          repository: ${{ env.SERVER_REPO }}
+          path: ${{ env.SERVER_DIR }}
+
+      - name: Setup .NET SDK
+        uses: actions/setup-dotnet@v5
+        with:
+          dotnet-version: 8.x.x
+      #          cache: true
+      #          cache-dependency-path: "**/packages.lock.json"
+
+      - name: 🏗️ Build Server
+        run: docker build --file "./packages/server/Dockerfile" --tag ${{ env.SPECKLE_SERVER_IMAGE }} .
+        working-directory: ${{ env.SERVER_DIR }}
+          
+      - name: ⚙️ Spin up Server
+        run: docker compose --file "../${{ env.CLIENT_DIR }}/docker-compose-internal.yml" up --wait
+        working-directory: ${{ env.SERVER_DIR }}
+        env:
+          SPECKLE_SERVER_IMAGE: ${{ env.SPECKLE_SERVER_IMAGE }}
+
+      - name: 📦 Restore .NET Solution
+        run: dotnet restore ${{ env.SOLUTION }} --locked-mode
+        working-directory: ${{ env.CLIENT_DIR }}
+        
+      - name: 🏗️ Build .NET Solution
+        run: dotnet build ${{ env.SOLUTION }} --configuration Release --no-restore -warnaserror
+        working-directory: ${{ env.CLIENT_DIR }}
+        
+      - name: 🔨 Run .NET Integration Tests 
+        run: dotnet test ${{ env.SOLUTION }} --filter "(Category=Integration)&(Server!=Public)" --configuration Release --no-build --no-restore --verbosity=normal
+        working-directory: ${{ env.CLIENT_DIR }}
diff --git a/.github/workflows/integration-test.yml b/.github/workflows/integration-test.yml
index ec74abd5..3ed1c7b8 100644
--- a/.github/workflows/integration-test.yml
+++ b/.github/workflows/integration-test.yml
@@ -37,7 +37,7 @@ jobs:
           password: ${{ github.token }}
 
       - name: ⚙️ Spin up Server
-        run: docker compose -f ${{ inputs.docker-compose-file }} up --wait
+        run: docker compose --file ${{ inputs.docker-compose-file }} up --wait
 
       - name: 📦 Restore
         run: dotnet restore ${{ env.Solution }} --locked-mode
diff --git a/Speckle.Sdk.slnx b/Speckle.Sdk.slnx
index 3f7ded3f..2461b2a0 100644
--- a/Speckle.Sdk.slnx
+++ b/Speckle.Sdk.slnx
@@ -18,6 +18,7 @@
     <File Path=".github\git-commit-instructions.md" />
   </Folder>
   <Folder Name="/config/workflows/">
+    <File Path=".github/workflows/integration-test-callable-from-server-repo.yml" />
     <File Path=".github/workflows/integration-test.yml" />
     <File Path=".github/workflows/pr.yml" />
     <File Path=".github/workflows/release.yml" />
diff --git a/docker-compose-internal.yml b/docker-compose-internal.yml
index a4eee0df..11d2d9b6 100644
--- a/docker-compose-internal.yml
+++ b/docker-compose-internal.yml
@@ -52,7 +52,7 @@ services:
       start_period: 10s
 
   speckle-server:
-    image: ghcr.io/specklesystems/speckle-server:latest
+    image: ${SPECKLE_SERVER_IMAGE:-ghcr.io/specklesystems/speckle-server:latest}
     restart: always
     healthcheck:
       test:
diff --git a/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ProjectResourceExceptionalTests.cs b/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ProjectResourceExceptionalTests.cs
index 94034402..ab14c650 100644
--- a/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ProjectResourceExceptionalTests.cs
+++ b/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/ProjectResourceExceptionalTests.cs
@@ -106,7 +106,7 @@ public class ProjectResourceExceptionalTests : IAsyncLifetime
     ProjectUpdateRoleInput input = new(_secondUser.Account.id.NotNull(), "NonExistentProject", newRole);
 
     var ex = await Assert.ThrowsAsync<AggregateException>(async () => _ = await Sut.UpdateRole(input));
-    ex.InnerExceptions.Single().Should().BeOfType<SpeckleGraphQLForbiddenException>();
+    ex.InnerExceptions.Single().Should().BeAssignableTo<SpeckleGraphQLException>(); //v3 server responds with SpeckleGraphQLStreamNotFoundException exception, v2 reponds with SpeckleGraphQLForbiddenException
   }
 
   [Theory]
diff --git a/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/SubscriptionResourceTests.cs b/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/SubscriptionResourceTests.cs
index 3ef89104..dff86650 100644
--- a/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/SubscriptionResourceTests.cs
+++ b/tests/Speckle.Sdk.Tests.Integration/Api/GraphQL/Resources/SubscriptionResourceTests.cs
@@ -15,7 +15,7 @@ public class SubscriptionResourceTests : IAsyncLifetime
 #else
   private const int WAIT_PERIOD = 400; // For CI runs, a much smaller wait time is acceptable
 #endif
-  private const int TIMEOUT = WAIT_PERIOD + 1000;
+  private const int TIMEOUT = WAIT_PERIOD + WAIT_PERIOD + 600;
   private IClient _testUser;
   private Project _testProject;
   private Model _testModel;