diff --git a/src/api/api_numeral.cpp b/src/api/api_numeral.cpp
index 60d663638..7d8c00fbe 100644
--- a/src/api/api_numeral.cpp
+++ b/src/api/api_numeral.cpp
@@ -459,4 +459,33 @@ extern "C" {
         Z3_CATCH_RETURN(nullptr);
     }
 
+#if 0
+    Z3_ast Z3_API Z3_mk_mpz_numeral(Z3_context c, bool sign, unsigned n, unsigned const nums[], Z3_sort* srt) {
+        LOG_TRY;
+        LOG_Z3_mk_mpz_numeral(c, sign, n, nums, srt);
+        RESET_ERROR_CODE();
+        rational z;
+
+        // todo fill in z
+        if (!z.size())
+            z.neg();
+        arith_util & a = mk_c(c)->autil();
+        auto* a = mk_c(c)->mk_numeral_core(r, a.mk_int_sort());
+        Z3_CATCH_RETURN(nullptr);
+            
+    }
+
+    Z3_ast Z3_API Z3_mk_mpq_numeral1(Z3_context c, bool sign, unsigned n, unsigned const nums[], unsigned d, unsigned const dens[]) {
+        LOG_TRY;
+        LOG_Z3_mk_mpq_numeral(c, sign, n, nums, d, dens);
+        RESET_ERROR_CODE();
+        rational q;
+
+        if (!sign)
+            q.neg();
+
+        Z3_CATCH_RETURN(nullptr);
+    }
+#endif
+
 };
diff --git a/src/api/z3_api.h b/src/api/z3_api.h
index e2e7deefb..099d3d829 100644
--- a/src/api/z3_api.h
+++ b/src/api/z3_api.h
@@ -3387,6 +3387,37 @@ extern "C" {
     */
     Z3_ast Z3_API Z3_mk_numeral(Z3_context c, Z3_string numeral, Z3_sort ty);
 
+    /**
+       \brief Create an integer numeral from a vector of unsigned numerals.
+
+       \param c - context
+       \param sign - true if positive, false if negative
+       \param n - length of array of numerals
+       \param nums - array of numerals
+       \param srt - sort of numeral (int, real, bit-vector).
+
+       future_('Z3_mk_mpz_numeral', AST, (_in(CONTEXT), _in(BOOL), _in(UINT), _in_array(2, UINT), _in(SORT)))
+     */
+
+    //Z3_ast Z3_mk_mpz_numeral(Z3_context c, bool sign, unsigned n, unsigned const nums[], Z3_sort s);
+
+    /**
+       \brief Create a rational numeral from a vector of unsigned numerals.
+
+       \param c - context
+       \param sign - true if positive, false if negative
+       \param n - length of array of nominator numerals
+       \param nums - array of numerator numerals
+       \param d - length of array of denominator numerals
+       \param dens - array of denominator numerals      
+
+       The sort of returned numeral is Real.
+
+       future_('Z3_mk_mpq_numeral', AST, (_in(CONTEXT), _in(BOOL), _in(UINT), _in_array(2, UINT), _in(UINT), _in_array(4, UINT)))
+     */
+
+    // Z3_ast Z3_mk_mpq_numeral(Z3_context c, bool sign, unsigned n, unsigned const nums[], unsigned d, unsigned const dens[]);
+
     /**
        \brief Create a real from a fraction.