diff --git a/scripts/project_detection.sh b/scripts/project_detection.sh
new file mode 100755
index 000000000..34716f8b6
--- /dev/null
+++ b/scripts/project_detection.sh
@@ -0,0 +1,29 @@
+# project-detection.sh
+#
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+#
+# Purpose
+#
+# This script contains functions for shell scripts to
+# help detect which project (Mbed TLS, TF-PSA-Crypto)
+# or which Mbed TLS branch they are in.
+
+# Project detection
+read_project_name_file () {
+    PROJECT_NAME_FILE='../../scripts/project_name.txt'
+    if read -r PROJECT_NAME < "$PROJECT_NAME_FILE"; then :; else
+        echo "$PROJECT_NAME_FILE does not exist... Exiting..." >&2
+        exit 1
+    fi
+}
+
+in_mbedtls_repo () {
+    read_project_name_file
+    test "$PROJECT_NAME" = "Mbed TLS"
+}
+
+in_tf_psa_crypto_repo () {
+    read_project_name_file
+    test "$PROJECT_NAME" = "TF-PSA-Crypto"
+}