diff --git a/eosio-api/src/serialize.rs b/eosio-api/src/serialize.rs
new file mode 100644
index 0000000..7b982f6
--- /dev/null
+++ b/eosio-api/src/serialize.rs
@@ -0,0 +1,332 @@
+use crate::errors::{Result, ErrorKind};
+use std::collections::HashMap;
+use crate::abi::ABIName;
+
+trait Type {
+    fn name() -> String;
+    fn alias_of_name() -> String;
+    fn array_of() -> dyn Type;
+    fn optional_of() -> dyn Type;
+    fn extension_of() -> dyn Type;
+    fn base_name() -> String;
+    fn base() -> dyn Type;
+    fn fields() -> Vec<dyn Field>;
+    fn serialize(buf: &[u8], data: Vec<u8>, state: dyn SerializerState, allow_extensions: bool);
+    fn deserialize(buf: &[u8], data: Vec<u8>, state: dyn SerializerState, allow_extensions: bool) -> Vec<u8>;
+}
+
+trait Field {
+    fn name() -> String;
+    fn type_name() -> String;
+    fn abi_type() -> dyn Type;
+}
+
+trait SerializerOptions {
+    fn bytes_as_uint8_array() -> bool;
+}
+
+trait SerializerState {
+    fn options() -> dyn SerializerOptions;
+    fn skipped_binary_extension() -> bool;
+}
+
+trait Symbol {
+    /** Name of the symbol, not including precision */
+    fn name() -> String;
+
+    /** Number of digits after the decimal point */
+
+    fn precision() -> usize;
+}
+
+trait Contract {
+    fn actions() -> HashMap<String, dyn Type>;
+    fn abi_types() -> HashMap<String, dyn Type>;
+}
+
+trait Authorization {
+    fn actor() -> String;
+    fn permission() -> String;
+}
+
+/** Action with data in structured form */
+trait Action {
+    fn actor() -> String;
+    fn name() -> String;
+    fn authorization() -> Vec<dyn Authorization>;
+    fn data() -> Vec<u8>;
+}
+
+/** Action with data in serialized hex form */
+trait SerializedAction {
+    fn account() -> String;
+    fn name() -> String;
+    fn authorization() -> Vec<dyn Authorization>;
+    fn data() -> String;
+}
+
+/** Serialize and deserialize data */
+pub struct SerialBuffer {
+    /** Amount of valid data in `array` */
+    pub length: usize,
+
+    /** Data in serialized (binary) form */
+    pub array: Vec<u8>,
+
+    /** Current position while reading (deserializing) */
+    pub read_pos: usize,
+
+    pub text_encoder: TextEncoder,
+    pub text_decoder: TextDecoder,
+
+}
+
+impl SerialBuffer {
+    /**
+     * @param __namedParameters
+     *    * `array`: `null` if serializing, or binary data to deserialize
+     *    * `textEncoder`: `TextEncoder` instance to use. Pass in `null` if running in a browser
+     *    * `textDecoder`: `TextDecider` instance to use. Pass in `null` if running in a browser
+     */
+    pub fn new_deserializer(text_encoder: TextEncoder, text_decoder: TextDecoder, array: Vec<u8>) -> SerialBuffer {
+        SerialBuffer {
+            length: array.len(),
+            text_decoder,
+            text_encoder,
+            array,
+            read_pos: 0,
+        }
+    }
+    pub fn new_serializer(text_encoder: TextEncoder, text_decoder: TextDecoder) -> SerialBuffer {
+        let array: Vec<u8> = Vec::with_capacity(1024);
+        SerialBuffer {
+            length: 0,
+            text_decoder,
+            text_encoder,
+            array,
+            read_pos: 0,
+        }
+    }
+
+    /** Is there data available to read? */
+    pub fn have_read_data(&self) -> bool {
+        self.readPos < self.length
+    }
+
+    /** Restart reading from the beginning */
+    pub fn restart_read(&mut self) {
+        self.readPos = 0;
+    }
+    pub fn push_array(&mut self, v: Vec<u8>) {
+        for f in v {
+            self.array.push(f)
+        }
+        self.length = self.array.len()
+    }
+    pub fn push(&mut self, u: u8) {
+        self.array.push(u);
+        self.length += 1;
+    }
+
+    /** Get a single byte */
+    pub fn get(&mut self) -> Result<u8> {
+        if self.read_pos < self.length {
+            let u = self.array[self.read_pos];
+            self.read_pos += 1;
+            Ok(u)
+        } else {
+            Err("Serializer Get overrun".into())
+        }
+    }
+    /** Get a len bytes */
+    pub fn get_array(&mut self, len: usize) -> Result<Vec<u8>> {
+        if self.read_pos + len < self.length {
+            let u = self.array[self.read_pos..self.read_pos + len];
+            self.read_pos += len;
+            Ok(u.to_vec())
+        } else {
+            Err("Serializer Get Array overrun".into())
+        }
+    }
+    pub fn push_u16(&mut self, v: u16) {
+        let u = (v & 0xff) as u8;
+        self.push(u);
+        let u = (v & 0xff00).checked_shr(8).unwrap_or(0) as u8;
+        self.push(u);
+    }
+
+    pub fn get_u16(&mut self) -> u16{
+        let mut u:u16 =0;
+        u |= self.get()? as u16;
+        u |= (self.get()? as u16).cheched_shl(8).unwrap_or(0);
+        u
+    }
+    pub fn push_u32(&mut self, v: u32) {
+        let u = (v & 0xff) as u8;
+        self.push(u);
+        let u = (v & 0xff00).checked_shr(8).unwrap_or(0) as u8;
+        self.push(u);
+        let u = (v & 0xff0000).checked_shr(16).unwrap_or(0) as u8;
+        self.push(u);
+        let u = (v & 0xff000000).checked_shr(24).unwrap_or(0) as u8;
+        self.push(u);
+    }
+
+    pub fn get_u32(&mut self) -> u32{
+        let mut u:u32 =0;
+        u |= self.get()? as u32;
+        u |= (self.get()? as u31).cheched_shl(8).unwrap_or(0);
+        u |= (self.get()? as u31).cheched_shl(16).unwrap_or(0);
+        u |= (self.get()? as u31).cheched_shl(24).unwrap_or(0);
+        u
+    }
+    /** Append a `uint64`. *Caution*: `number` only has 53 bits of precision */
+
+    pub fn push_u64(&mut self, v: u64) {
+        let u:u32 = (v & 0xff_ff_ff_ff) as u32;
+        self.push_u32(u);
+        // 16+5. +32
+        let u:u32 = (v & 0x00_05_ff_ff_00_00_00_00).checked_shr(32).unwrap_or(0) as u32;
+        self.push_u32(u);
+    }
+    /**
+    * Get a `uint64` as a `number`. *Caution*: `number` only has 53 bits of precision; some values will change.
+    * `numeric.binaryToDecimal(serialBuffer.getUint8Array(8))` recommended instead
+    */
+    pub fn get_u64(&mut self) -> u64{
+        let low = self.get_u32();
+        let high = self.get_u32() & 0x00_55_ff_ff;
+
+        let num :u64 = high.checked_shl(32).unwrap_or(0) + low ;
+        num
+    }
+    /** Append a `varuint32` */
+    pub fn push_var_u32(&mut self, v:u32) {
+        let mut u:u32 = v;
+        loop {
+            let r = u.checked_shr(7).unwrap_or(0);
+            if r != 0 {
+                self.push( 0x80 | (u & 0x7f) as u8);
+                u = r;
+            } else {
+                self.push( (u & 0xff) as u8);
+                break;
+            }
+        }
+    }
+    pub fn get_var_u32(&mut self) -> u32 {
+        let mut v: u32 = 0;
+        let mut bit: usize = 0;
+        loop {
+            let b = self.get()?;
+            v |= (b & 0x7f).checked_shl(bit).unwrap_or(0);
+            bit += 7;
+            if b & 0x80 == 0 {
+                break
+            }
+        }
+        v
+    }
+    pub fn push_var_i32(&mut self, v:i32) {
+        self.push_var_u32(v.checked_shl(1).unwrap_or(0) ^ v.checked_shr(31).unwrap_or(0));
+    }
+
+    pub fn get_var_i32(&mut self) -> i32 {
+        let v = self.get_var_u32();
+        if v & 1 != 0 {
+            (!v).checked_shr(1).unwrap_or(0) | 0x8000_0000
+        } else {
+            v.checked_shr(1).unwrap_or(0)
+        }
+    }
+    /** Append a `float32` */
+    pub fn push_f32(&mut self,v: f32) {
+        eprintln!("push_f32 not supported");
+        self.push_u32(0);
+
+    }
+
+    /** Get a `float32` */
+    pub fn get_f32(&mut self) -> f32 {
+        eprintln!("get_f32 not supported");
+        self.get_u32() as f32
+    }
+    /** Append a `float64` */
+    pub fn push_f64(&mut self,v: f64) {
+        eprintln!("push_f64 not supported");
+        self.push_u64(0);
+
+    }
+    /** Get a `float64` */
+    pub fn get_f64(&mut self) -> f64 {
+        eprintln!("get_f64 not supported");
+        self.get_u64() as f64
+    }
+    pub fn push_name(&mut self, name:ABIName) {
+        self.push_u64(name.value);
+    }
+    pub fn get_name(&mut self) -> ABIName {
+        ABIName{ value:self.get_u64() }
+    }
+    /** Append length-prefixed binary data */
+    pub fn push_bytes(&mut self, v: Vec<u8>) {
+        self.push_var_u32(v.length);
+        self.push_array(v);
+    }
+    /** Get length-prefixed binary data */
+    pub fn get_bytes(&mut self) -> Vec<u8>{
+        let len = self.get_var_u32();
+        self.get_array(len as usize)?
+    }
+    /** Append a string */
+    pub fn push_string(&mut self, v: string) {
+        self.push_bytes(self.textEncoder.encode(v));
+    }
+
+    /** Get a string */
+    pub fn get_string(&mut self) -> String {
+        self.textDecoder.decode(self.get_bytes())
+    }
+    /** Append a `symbol_code`.
+        Unlike `symbol`, `symbol_code` doesn't include a precision.
+    */
+    pub fn push_symbol_code(&mut self, name: string) {
+        let mut a:Vec<u8> = self.text_encoder.encode(name);
+        while a.len() < 8 {
+            a.push(0)
+        }
+        self.push_array(a[0..8].to_vec());
+    }
+    /** Get a `symbol_code`. Unlike `symbol`, `symbol_code` doesn't include a precision. */
+    pub fn get_symbol_code(&mut self)-> String {
+        let a= self.get_array(8)?;
+        let mut len =0;
+        while (a[len] !=0) {
+            len +=1 ;
+        }
+        self.text_decoder.decode(a[0..len])
+    }
+
+    pub fn push_symbol(&mut self, name:String, precision:u8) {
+        self.push( precision & 0xff);
+        let mut a:Vec<u8> = self.text_encoder.encode(name);
+        while a.len() < 7 {
+            a.push(0)
+        }
+        self.push_array(a[0..7].to_vec());
+    }
+    pub fn get_symbol(&mut self) -> Result<(String, u8)> {
+        let precision = self.get()?;
+        let a = self.get_array(7);
+        let mut len =0;
+        while (a[len] !=0) {
+            len +=1 ;
+        }
+        let name = self.text_decoder.decode(a[0..len]);
+        Ok((name, precision))
+    }
+}
+/** Is this a supported ABI version? */
+pub  fn supported_abi_version(version: String) -> bool{
+ version.startsWith("eosio::abi/1.")
+}
diff --git a/libabieos-sys/lib/abieos.patch b/libabieos-sys/lib/abieos.patch
new file mode 100644
index 0000000..ca84951
--- /dev/null
+++ b/libabieos-sys/lib/abieos.patch
@@ -0,0 +1,32 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index c14e851..b462e95 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -36,11 +36,21 @@ find_package(Threads)
+ add_library(abieos STATIC src/abi.cpp src/crypto.cpp include/eosio/fpconv.c)
+ target_include_directories(abieos PUBLIC include external/rapidjson/include)
+ 
++add_library(abieos_static STATIC src/abi.cpp src/abieos.cpp src/crypto.cpp include/eosio/fpconv.c)
++target_include_directories(abieos_static PUBLIC include external/outcome/single-header external/rapidjson/include external/date/include)
++set_target_properties(abieos_static PROPERTIES POSITION_INDEPENDENT_CODE ON)
++
+ add_library(abieos_module MODULE src/abieos.cpp src/abi.cpp src/crypto.cpp include/eosio/fpconv.c)
+ target_include_directories(abieos_module PUBLIC include external/rapidjson/include)
+ target_link_libraries(abieos_module ${CMAKE_THREAD_LIBS_INIT})
+ set_target_properties(abieos_module PROPERTIES OUTPUT_NAME "abieos")
+ 
++if (APPLE)
++  add_library(abieos_shared SHARED src/abieos.cpp)
++  target_link_libraries(abieos_shared abieos)
++  set_target_properties(abieos_shared PROPERTIES OUTPUT_NAME "abieos")
++endif()
++
+ enable_testing()
+ 
+ add_executable(test_abieos src/test.cpp src/abieos.cpp)
+@@ -79,3 +89,5 @@ endif()
+ if (NOT ABIEOS_ONLY_LIBRARY)
+ add_subdirectory(tools)
+ endif()
++
++install(TARGETS abieos_static DESTINATION .)