diff --git a/interface/src/tfm_initial_attestation_api.c b/interface/src/tfm_initial_attestation_api.c
new file mode 100644
index 0000000..b935f34
--- /dev/null
+++ b/interface/src/tfm_initial_attestation_api.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2018, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include "psa_initial_attestation_api.h"
+#include "tfm_initial_attestation_veneers.h"
+#include "tfm_ns_lock.h"
+#include "psa_client.h"
+
+enum psa_attest_err_t
+psa_initial_attest_get_token(const uint8_t *challenge_obj,
+                             uint32_t       challenge_size,
+                             uint8_t       *token,
+                             uint32_t      *token_size)
+{
+    psa_invec  in_vec[1];
+    psa_outvec out_vec[1];
+
+    in_vec[0].base = challenge_obj;
+    in_vec[0].len  = challenge_size;
+
+    out_vec[0].base = token;
+    out_vec[0].len  = *token_size;
+
+    return tfm_ns_lock_dispatch((veneer_fn)tfm_attest_veneer_get_token,
+                                (uint32_t)in_vec,  1,
+                                (uint32_t)out_vec, 1);
+}