diff --git a/.evergreen/connect.sh b/.evergreen/connect.sh
new file mode 100755
index 0000000000..8d4bbbc442
--- /dev/null
+++ b/.evergreen/connect.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+set -o errexit
+set -o pipefail
+
+LIB_DIR=${LIB_DIR:-"lib"}
+BUILD_TYPE=${BUILD_TYPE:-"Debug"}
+
+print_usage_and_exit () {
+    echo "Error: $1"
+    cat << EOF
+    connect.sh runs the connect example with a MongoDB URI.
+
+    Example usage:
+    MONGOC_INSTALL_PREFIX=/Users/kevin.albertson/install/mongo-c-driver-1.18.0 \\
+    MONGOCXX_INSTALL_PREFIX=/Users/kevin.albertson/install/mongo-cxx-driver-dev \\
+    LIB_DIR="lib" \\
+    BUILD_TYPE="Debug" \\
+    BUILD_DIR=$(pwd)/cmake-build \\
+    URI="mongodb://localhost:27017/?" \\
+        ./.evergreen/connect.sh
+EOF
+    exit 1;
+}
+
+if [ -z "$URI" ]; then
+    print_usage_and_exit "URI is a required environment variable."
+fi
+if [ -z "$MONGOC_INSTALL_PREFIX" ]; then
+    print_usage_and_exit "MONGOC_INSTALL_PREFIX is a required environment variable."
+fi
+if [ -z "$MONGOCXX_INSTALL_PREFIX" ]; then
+    print_usage_and_exit "MONGOCXX_INSTALL_PREFIX is a required environment variable."
+fi
+if [ -z "$BUILD_DIR" ]; then
+    print_usage_and_exit "BUILD_DIR is a required environment variable."
+fi
+
+# Use PATH / LD_LIBRARY_PATH / DYLD_LIBRARY_PATH to inform the tests where to find
+# mongoc library dependencies on Windows / Linux / Mac OS, respectively.
+export PATH=$PATH:$MONGOC_INSTALL_PREFIX/bin
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$MONGOC_INSTALL_PREFIX/$LIB_DIR/
+export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$MONGOC_INSTALL_PREFIX/$LIB_DIR/
+
+# Windows also needs to be informed where to find mongocxx library dependencies.
+export PATH=$PATH:$BUILD_DIR/src/bsoncxx/$BUILD_TYPE
+export PATH=$PATH:$BUILD_DIR/src/mongocxx/$BUILD_TYPE
+export PATH=$PATH:$MONGOCXX_INSTALL_PREFIX/bin
+
+if [ "Windows_NT" == "$OS" ]; then
+    $BUILD_DIR/examples/mongocxx/$BUILD_TYPE/connect.exe "$URI"
+else
+    $BUILD_DIR/examples/mongocxx/connect "$URI"
+fi
diff --git a/.mci.yml b/.mci.yml
index e9698d5a28..8da7379e48 100644
--- a/.mci.yml
+++ b/.mci.yml
@@ -471,32 +471,35 @@ functions:
               shell: bash
               working_dir: "mongo-cxx-driver"
               script: |
-                  set -o errexit
-                  set -o pipefail
-                  export PATH="${extra_path}:$PATH"
-                  cd build
-                  export PREFIX=$(pwd)/../../mongoc
+                  set -o xtrace
 
-                  # Use PATH / LD_LIBRARY_PATH / DYLD_LIBRARY_PATH to inform the tests where to find
-                  # mongoc library dependencies on Windows / Linux / Mac OS, respectively.
-                  # Additionally, on Windows, we also need to inform the tests where to find
-                  # mongocxx library dependencies.
-                  if [ -n "${lib_dir}" ]; then
-                     export LD_LIBRARY_PATH=.:$PREFIX/${lib_dir}/
-                     export DYLD_LIBRARY_PATH=.:$PREFIX/${lib_dir}/
-                  else
-                     export LD_LIBRARY_PATH=.:$PREFIX/lib/
-                     export DYLD_LIBRARY_PATH=.:$PREFIX/lib/
-                  fi
-                  export PATH=$(pwd)/src/bsoncxx/${build_type}:$(pwd)/src/mongocxx/${build_type}:$PREFIX/bin:$(pwd)/install/bin:$PATH
+                  export MONGOC_INSTALL_PREFIX=$(pwd)/../mongoc
+                  export MONGOCXX_INSTALL_PREFIX=$(pwd)/build/install
+                  export LIB_DIR=${lib_dir}
+                  export BUILD_TYPE=${build_type}
+                  export BUILD_DIR=$(pwd)/build
+                  export URI="mongodb://bob:pwd123@localhost"
+                  ./.evergreen/connect.sh
+
+    "test atlas connectivity":
+        - command: shell.exec
+          params:
+              shell: bash
+              working_dir: "mongo-cxx-driver"
+              silent: true
+              script: |
+                  set -o xtrace
 
-                  URI="mongodb://bob:pwd123@localhost"
+                  export MONGOC_INSTALL_PREFIX=$(pwd)/../mongoc
+                  export MONGOCXX_INSTALL_PREFIX=$(pwd)/build/install
+                  export LIB_DIR=${lib_dir}
+                  export BUILD_TYPE=${build_type}
+                  export BUILD_DIR=$(pwd)/build
 
-                  if [ "Windows_NT" == "$OS" ]; then
-                      ./examples/mongocxx/${build_type}/connect.exe "$URI"
-                  else
-                      ./examples/mongocxx/connect "$URI"
-                  fi
+                  # The atlas_serverless_uri expansion is set in the Evergreen project settings.
+                  export URI="${atlas_serverless_uri}"
+
+                  ./.evergreen/connect.sh
 
     "backtrace":
         - command: shell.exec
@@ -626,6 +629,7 @@ tasks:
         - func: "install_c_driver"
         - func: "compile"
         - func: "test auth"
+        - func: "test atlas connectivity"
 
     - name: compile_and_test_with_static_libs
       commands: