diff --git a/README.md b/README.md
index dc9da89..388a7a6 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # python-jsonrpc-server
 
+JSON RPC 2.0 server library.
+
diff --git a/python-jsonrpc-server.spec b/python-jsonrpc-server.spec
new file mode 100644
index 0000000..38807b1
--- /dev/null
+++ b/python-jsonrpc-server.spec
@@ -0,0 +1,49 @@
+Name:          python-jsonrpc-server
+Version:       0.4.0
+Release:       1mamba
+Summary:       JSON RPC 2.0 server library
+Group:         System/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/palantir/python-jsonrpc-server
+Source:        https://pypi.debian.net/python-jsonrpc-server/python-jsonrpc-server-%{version}.tar.gz
+License:       MIT
+## AUTOBUILDREQ-BEGIN
+BuildRequires: libpython3-devel
+BuildRequires: python3.7dist(ujson)
+## AUTOBUILDREQ-END
+
+%description
+%{summary}.
+
+%if 0%{?with_pyver}
+%pyver_package
+%endif
+
+%prep
+%setup -q
+
+%build
+CFLAGS="%{optflags}" %{__python} setup.py build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%{__python} setup.py install \
+   -O1 --skip-build \
+   --root="%{buildroot}" \
+   --install-headers=%{python_inc} \
+   --install-lib=%{python_sitearch} \
+   --record=%{name}.filelist
+
+sed -i "\,\.egg-info/,d;s,.*/man/.*,&.gz," %{name}.filelist
+
+%files %{?pyappend} -f %{name}.filelist
+%defattr(-,root,root)
+%dir %{python_sitearch}/python_jsonrpc_server-%{version}-py*.egg-info
+%{python_sitearch}/python_jsonrpc_server-%{version}-py*.egg-info/*
+%doc LICENSE
+
+%changelog
+* Mon Apr 12 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 0.4.0-1mamba
+- package created using the webbuild interface