diff --git a/chainlib/eth/eip165.py b/chainlib/eth/eip165.py
deleted file mode 100644
index 5d9bfaf..0000000
--- a/chainlib/eth/eip165.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# standard imports
-from chainlib.eth.constant import ZERO_ADDRESS
-
-# external imports
-from chainlib.jsonrpc import (
-        jsonrpc_template,
-        )
-from hexathon import (
-        add_0x,
-        )
-from chainlib.eth.contract import (
-        ABIContractEncoder,
-        ABIContractDecoder,
-        ABIContractType,
-        abi_decode_single,
-        )
-from chainlib.eth.tx import TxFactory
-
-
-class EIP165(TxFactory):
-
-    def supports_interface(self, contract_address, interface_sum, sender_address=ZERO_ADDRESS):
-        o = jsonrpc_template()
-        o['method'] = 'eth_call'
-        enc = ABIContractEncoder()
-        enc.method('supportsInterface')
-        enc.typ(ABIContractType.BYTES4)
-        enc.bytes4(interface_sum)
-        data = add_0x(enc.get())
-        tx = self.template(sender_address, contract_address)
-        tx = self.set_code(tx, data)
-        o['params'].append(self.normalize(tx))
-        return o
-
-
-    @classmethod
-    def parse_supports_interface(self, v):
-        return abi_decode_single(ABIContractType.BOOLEAN, v)
diff --git a/tests/test_eip165.py b/tests/test_eip165.py
deleted file mode 100644
index ca4955b..0000000
--- a/tests/test_eip165.py
+++ /dev/null
@@ -1,61 +0,0 @@
-# standard imports
-import unittest
-import os
-import logging
-
-# local imports
-from chainlib.eth.unittest.ethtester import EthTesterCase
-from chainlib.eth.nonce import RPCNonceOracle
-from chainlib.eth.gas import OverrideGasOracle
-from chainlib.connection import RPCConnection
-from chainlib.eth.tx import (
-        TxFactory,
-        receipt,
-        )
-from chainlib.eth.eip165 import EIP165
-
-logging.basicConfig(level=logging.DEBUG)
-logg = logging.getLogger()
-
-script_dir = os.path.realpath(os.path.dirname(__file__))
-
-
-class TestSupports(EthTesterCase):
-
-    def setUp(self):
-        super(TestSupports, self).setUp()
-        self.conn = RPCConnection.connect(self.chain_spec, 'default')
-        nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
-
-        f = open(os.path.join(script_dir, 'testdata', 'Supports.bin'))
-        code = f.read()
-        f.close()
-
-        txf = TxFactory(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
-        tx = txf.template(self.accounts[0], None, use_nonce=True)
-        tx = txf.set_code(tx, code)
-        (tx_hash_hex, o) = txf.build(tx)
-
-        r = self.conn.do(o)
-        logg.debug('deployed with hash {}'.format(r))
-
-        o = receipt(tx_hash_hex)
-        r = self.conn.do(o)
-        self.address = r['contract_address']
-
-
-    def test_supports(self):
-        gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn)
-        c = EIP165(self.chain_spec, gas_oracle=gas_oracle)
-        o = c.supports_interface(self.address, '0xdeadbeef', sender_address=self.accounts[0])
-        r = self.conn.do(o)
-        v = c.parse_supports_interface(r)
-        self.assertEqual(v, 1)
-        
-        o = c.supports_interface(self.address, '0xbeeffeed', sender_address=self.accounts[0])
-        r = self.conn.do(o)
-        v = c.parse_supports_interface(r)
-        self.assertEqual(v, 0)
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/tests/testdata/Supports.bin b/tests/testdata/Supports.bin
deleted file mode 100644
index 5ef8144..0000000
--- a/tests/testdata/Supports.bin
+++ /dev/null
@@ -1 +0,0 @@
-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
\ No newline at end of file
diff --git a/tests/testdata/Supports.sol b/tests/testdata/Supports.sol
deleted file mode 100644
index 3e27538..0000000
--- a/tests/testdata/Supports.sol
+++ /dev/null
@@ -1,10 +0,0 @@
-pragma solidity ^0.8.0;
-
-contract Supports {
-	function supportsInterface(bytes4 _sum) public pure returns (bool) {
-		if (_sum == 0xdeadbeef) {
-			return true;
-		}
-		return false;
-	}
-}