diff --git a/scripts/mk_project.py b/scripts/mk_project.py
index e6e7d5dc8..e2bbd20ca 100644
--- a/scripts/mk_project.py
+++ b/scripts/mk_project.py
@@ -59,7 +59,7 @@ def init_project_def():
     add_lib('ufbv_tactic', ['normal_forms', 'core_tactics', 'macros', 'smt_tactic', 'rewriter'], 'tactic/ufbv')
     add_lib('portfolio', ['smtlogic_tactics', 'ufbv_tactic', 'fpa', 'aig_tactic', 'muz_qe', 'sls_tactic', 'subpaving_tactic'], 'tactic/portfolio')
     add_lib('smtparser', ['portfolio'], 'parsers/smt')
-    API_files = ['z3_api.h', 'z3_algebraic.h', 'z3_polynomial.h', 'z3_rcf.h']
+    API_files = ['z3_api.h', 'z3_algebraic.h', 'z3_polynomial.h', 'z3_rcf.h', 'z3_fpa.h']
     add_lib('api', ['portfolio', 'user_plugin', 'smtparser', 'realclosure'],
             includes2install=['z3.h', 'z3_v1.h', 'z3_macros.h'] + API_files)
     add_exe('shell', ['api', 'sat', 'extra_cmds'], exe_name='z3')
diff --git a/src/api/api_fpa.cpp b/src/api/api_fpa.cpp
new file mode 100644
index 000000000..8e8493d63
--- /dev/null
+++ b/src/api/api_fpa.cpp
@@ -0,0 +1,107 @@
+/*++
+Copyright (c) 2013 Microsoft Corporation
+
+Module Name:
+
+    api_fpa.cpp
+
+Abstract:
+
+
+Author:
+
+    Christoph M. Wintersteiger (cwinter) 2013-06-05
+
+Notes:
+    
+--*/
+#include<iostream>
+#include"z3.h"
+#include"api_log_macros.h"
+#include"api_context.h"
+#include"float_decl_plugin.h"
+
+extern "C" {
+
+    Z3_sort Z3_API Z3_mk_fpa_rounding_mode_sort(Z3_context c) {
+        Z3_TRY;
+        LOG_Z3_mk_fpa_rounding_mode_sort(c);
+        RESET_ERROR_CODE(); 
+        api::context * ctx = mk_c(c);        
+        Z3_sort r = of_sort(float_util(ctx->m()).mk_rm_sort());
+        RETURN_Z3(r);
+        Z3_CATCH_RETURN(0);
+    }   
+
+    Z3_ast Z3_API Z3_mk_fpa_round_nearest_ties_to_even(__in Z3_context c)
+    {
+        Z3_TRY;
+        LOG_Z3_mk_fpa_round_nearest_ties_to_even(c);
+        RESET_ERROR_CODE(); 
+        api::context * ctx = mk_c(c);
+        Z3_ast r = of_ast(float_util(ctx->m()).mk_round_nearest_ties_to_even());
+        RETURN_Z3(r);
+        Z3_CATCH_RETURN(0);
+    }
+
+    Z3_ast Z3_API Z3_mk_fpa_round_nearest_ties_to_away(__in Z3_context c)
+    {
+        Z3_TRY;
+        LOG_Z3_mk_fpa_round_nearest_ties_to_even(c);
+        RESET_ERROR_CODE(); 
+        api::context * ctx = mk_c(c);
+        Z3_ast r = of_ast(float_util(ctx->m()).mk_round_nearest_ties_to_away());
+        RETURN_Z3(r);
+        Z3_CATCH_RETURN(0);
+    }
+
+    Z3_ast Z3_API Z3_mk_fpa_round_toward_positive(__in Z3_context c)
+    {
+        Z3_TRY;
+        LOG_Z3_mk_fpa_round_nearest_ties_to_even(c);
+        RESET_ERROR_CODE(); 
+        api::context * ctx = mk_c(c);
+        Z3_ast r = of_ast(float_util(ctx->m()).mk_round_toward_positive());
+        RETURN_Z3(r);
+        Z3_CATCH_RETURN(0);
+    }
+
+    Z3_ast Z3_API Z3_mk_fpa_round_toward_negative(__in Z3_context c)
+    {
+        Z3_TRY;
+        LOG_Z3_mk_fpa_round_nearest_ties_to_even(c);
+        RESET_ERROR_CODE(); 
+        api::context * ctx = mk_c(c);
+        Z3_ast r = of_ast(float_util(ctx->m()).mk_round_toward_negative());
+        RETURN_Z3(r);
+        Z3_CATCH_RETURN(0);
+    }
+
+    Z3_ast Z3_API Z3_mk_fpa_round_toward_zero(__in Z3_context c)
+    {
+        Z3_TRY;
+        LOG_Z3_mk_fpa_round_nearest_ties_to_even(c);
+        RESET_ERROR_CODE(); 
+        api::context * ctx = mk_c(c);
+        Z3_ast r = of_ast(float_util(ctx->m()).mk_round_toward_zero());
+        RETURN_Z3(r);
+        Z3_CATCH_RETURN(0);
+    }
+
+    Z3_sort Z3_API Z3_mk_fpa_sort(Z3_context c, unsigned ebits, unsigned sbits) {
+        Z3_TRY;
+        LOG_Z3_mk_fpa_sort(c, ebits, sbits);
+        RESET_ERROR_CODE(); 
+        if (ebits < 2 || sbits < 3) {
+            SET_ERROR_CODE(Z3_INVALID_ARG);
+        }        
+        api::context * ctx = mk_c(c);
+        float_util fu(ctx->m());
+        Z3_sort r = of_sort(fu.mk_float_sort(ebits, sbits));
+        RETURN_Z3(r);
+        Z3_CATCH_RETURN(0);
+    }   
+
+
+
+};
diff --git a/src/api/z3.h b/src/api/z3.h
index db8becafd..2a56fa9a7 100644
--- a/src/api/z3.h
+++ b/src/api/z3.h
@@ -27,6 +27,7 @@ Notes:
 #include"z3_algebraic.h"
 #include"z3_polynomial.h"
 #include"z3_rcf.h"
+#include"z3_fpa.h"
 
 #undef __in
 #undef __out
diff --git a/src/api/z3_fpa.h b/src/api/z3_fpa.h
new file mode 100644
index 000000000..a3e61931b
--- /dev/null
+++ b/src/api/z3_fpa.h
@@ -0,0 +1,82 @@
+/*++
+Copyright (c) 2013 Microsoft Corporation
+
+Module Name:
+
+    z3_fpa.h
+
+Abstract:
+
+    Additional APIs for floating-point arithmetic (FPA).
+
+Author:
+
+    Christoph M. Wintersteiger (cwinter) 2013-06-05
+
+Notes:
+    
+--*/
+#ifndef _Z3_FPA_H_
+#define _Z3_FPA_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+    /**
+        \brief Create a rounding mode sort.
+     
+        def_API('Z3_mk_fpa_rounding_mode_sort', SORT, (_in(CONTEXT),))
+    */
+    Z3_sort Z3_API Z3_mk_fpa_rounding_mode_sort(__in Z3_context c);
+
+    /**
+        \brief Create a numeral of rounding mode sort which represents the NearestTiesToEven rounding mode.
+     
+        def_API('Z3_mk_fpa_round_nearest_ties_to_even', AST, (_in(CONTEXT),))
+    */
+    Z3_ast Z3_API Z3_mk_fpa_round_nearest_ties_to_even(__in Z3_context c);
+
+    /**
+        \brief Create a numeral of rounding mode sort which represents the NearestTiesToAway rounding mode.
+     
+        def_API('Z3_mk_fpa_round_nearest_ties_to_away', AST, (_in(CONTEXT),))
+    */
+    Z3_ast Z3_API Z3_mk_fpa_round_nearest_ties_to_away(__in Z3_context c);
+
+    /**
+        \brief Create a numeral of rounding mode sort which represents the TowardPositive rounding mode.
+     
+        def_API('Z3_mk_fpa_round_toward_positive', AST, (_in(CONTEXT),))
+    */
+    Z3_ast Z3_API Z3_mk_fpa_round_toward_positive(__in Z3_context c);    
+
+    /**
+        \brief Create a numeral of rounding mode sort which represents the TowardNegative rounding mode.
+     
+        def_API('Z3_mk_fpa_round_toward_negative', AST, (_in(CONTEXT),))
+    */
+    Z3_ast Z3_API Z3_mk_fpa_round_toward_negative(__in Z3_context c);    
+
+    /**
+        \brief Create a numeral of rounding mode sort which represents the TowardZero rounding mode.
+     
+        def_API('Z3_mk_fpa_round_toward_zero', AST, (_in(CONTEXT),))
+    */
+    Z3_ast Z3_API Z3_mk_fpa_round_toward_zero(__in Z3_context c);
+
+
+    /**
+        \brief Create a floating point sort.
+     
+        def_API('Z3_mk_fpa_sort', SORT, (_in(CONTEXT), _in(UINT), _in(UINT)))
+
+        \remark ebits must be larger than 1 and sbits must be larger than 2.
+    */
+    Z3_sort Z3_API Z3_mk_fpa_sort(__in Z3_context c, __in unsigned ebits, __in unsigned sbits);
+  
+#ifdef __cplusplus
+};
+#endif // __cplusplus
+
+#endif