diff --git a/src/include/deepstate/Klee.h b/src/include/deepstate/Klee.h
new file mode 100644
index 0000000..6689266
--- /dev/null
+++ b/src/include/deepstate/Klee.h
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2018 Trail of Bits, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SRC_INCLUDE_DEEPSTATE_KLEE_H_
+#define SRC_INCLUDE_DEEPSTATE_KLEE_H_
+
+#include <deepstate/DeepState.h>
+
+#define KLEE_GET_VALUE(suffix, type) type klee_get_value ## suffix(type expr)
+
+DEEPSTATE_BEGIN_EXTERN_C
+
+/* TODO(joe): Implement */
+static void klee_define_fixed_object(void *addr, size_t nbytes);
+
+/* TODO(joe): Implement */
+static void klee_make_symbolic(void *addr, size_t nbytes, const char *name);
+
+/* TODO(joe): Implement */
+static int klee_range(int begin, int end, const char *name);
+
+/* TODO(joe): Implement */
+static int klee_int(const char *name);
+
+/* TODO(joe): Implement */
+DEEPSTATE_NORETURN static void klee_silent_exit(int status);
+
+/* TODO(joe): Implement */
+static size_t klee_get_obj_size(void *ptr);
+
+/* TODO(joe): Implement */
+static void klee_print_expr(const char *msg, ...);
+
+/* TODO(joe): Implement */
+static uintptr_t klee_choose(uintptr_t n);
+
+/* TODO(joe): Implement */
+static unsigned klee_is_symbolic(uintptr_t n);
+
+/* TODO(joe): Implement */
+static void klee_assume(uintptr_t condition);
+
+/* TODO(joe): Implement */
+static void klee_warning(const char *message);
+
+/* TODO(joe): Implement */
+static void klee_warning_once(const char *message);
+
+/* TODO(joe): Implement */
+static void klee_prefer_cex(void *object, uintptr_t condition);
+
+/* TODO(joe): Implement */
+static void klee_posix_prefer_cex(void *object, uintptr_t condition);
+
+/* TODO(joe): Implement */
+static void klee_mark_global(void *object);
+
+/* TODO(joe): Implement */
+static KLEE_GET_VALUE(f, float);
+
+/* TODO(joe): Implement */
+static KLEE_GET_VALUE(d, double);
+
+/* TODO(joe): Implement */
+static KLEE_GET_VALUE(l, long);
+
+/* TODO(joe): Implement */
+static KLEE_GET_VALUE(ll, long long);
+
+/* TODO(joe): Implement */
+static KLEE_GET_VALUE(_i32, int32_t);
+
+/* TODO(joe): Implement */
+static KLEE_GET_VALUE(_i64, int64_t);
+
+/* TODO(joe): Implement */
+static void klee_check_memory_access(const void *address, size_t size);
+
+/* TODO(joe): Implement */
+static void klee_set_forking(unsigned enable);
+
+/* TODO(joe): Implement */
+static void klee_alias_function(const char *fn_name, const char *new_fn_name);
+
+/* TODO(joe): Implement */
+static void klee_stack_trace(void);
+
+/* TODO(joe): Implement */
+static void klee_print_range(const char *name, int arg);
+
+/* TODO(joe): Implement */
+static void klee_open_merge(void);
+
+/* TODO(joe): Implement */
+static void klee_close_merge(void);
+
+DEEPSTATE_END_EXTERN_C
+
+#endif  /* SRC_INCLUDE_DEEPSTATE_KLEE_H_ */