diff --git a/abis/ERC677BridgeToken.abi.json b/abis/ERC677BridgeToken.abi.json
new file mode 100644
index 0000000..8ba51f9
--- /dev/null
+++ b/abis/ERC677BridgeToken.abi.json
@@ -0,0 +1,597 @@
+[
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "mintingFinished",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "name",
+    "outputs": [
+      {
+        "name": "",
+        "type": "string"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_spender",
+        "type": "address"
+      },
+      {
+        "name": "_value",
+        "type": "uint256"
+      }
+    ],
+    "name": "approve",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "totalSupply",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_from",
+        "type": "address"
+      },
+      {
+        "name": "_to",
+        "type": "address"
+      },
+      {
+        "name": "_value",
+        "type": "uint256"
+      }
+    ],
+    "name": "transferFrom",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "decimals",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint8"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_to",
+        "type": "address"
+      },
+      {
+        "name": "_amount",
+        "type": "uint256"
+      }
+    ],
+    "name": "mint",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_value",
+        "type": "uint256"
+      }
+    ],
+    "name": "burn",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_spender",
+        "type": "address"
+      },
+      {
+        "name": "_subtractedValue",
+        "type": "uint256"
+      }
+    ],
+    "name": "decreaseApproval",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "_owner",
+        "type": "address"
+      }
+    ],
+    "name": "balanceOf",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "owner",
+    "outputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "symbol",
+    "outputs": [
+      {
+        "name": "",
+        "type": "string"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "bridgeContract",
+    "outputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_spender",
+        "type": "address"
+      },
+      {
+        "name": "_addedValue",
+        "type": "uint256"
+      }
+    ],
+    "name": "increaseApproval",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "_owner",
+        "type": "address"
+      },
+      {
+        "name": "_spender",
+        "type": "address"
+      }
+    ],
+    "name": "allowance",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_newOwner",
+        "type": "address"
+      }
+    ],
+    "name": "transferOwnership",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "inputs": [
+      {
+        "name": "_name",
+        "type": "string"
+      },
+      {
+        "name": "_symbol",
+        "type": "string"
+      },
+      {
+        "name": "_decimals",
+        "type": "uint8"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "constructor"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "name": "from",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "to",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "value",
+        "type": "uint256"
+      }
+    ],
+    "name": "ContractFallbackCallFailed",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "name": "to",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "amount",
+        "type": "uint256"
+      }
+    ],
+    "name": "Mint",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [],
+    "name": "MintFinished",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "name": "previousOwner",
+        "type": "address"
+      }
+    ],
+    "name": "OwnershipRenounced",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "name": "previousOwner",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "name": "newOwner",
+        "type": "address"
+      }
+    ],
+    "name": "OwnershipTransferred",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "name": "burner",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "value",
+        "type": "uint256"
+      }
+    ],
+    "name": "Burn",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "name": "from",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "name": "to",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "value",
+        "type": "uint256"
+      },
+      {
+        "indexed": false,
+        "name": "data",
+        "type": "bytes"
+      }
+    ],
+    "name": "Transfer",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "name": "owner",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "name": "spender",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "value",
+        "type": "uint256"
+      }
+    ],
+    "name": "Approval",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": true,
+        "name": "from",
+        "type": "address"
+      },
+      {
+        "indexed": true,
+        "name": "to",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "value",
+        "type": "uint256"
+      }
+    ],
+    "name": "Transfer",
+    "type": "event"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_bridgeContract",
+        "type": "address"
+      }
+    ],
+    "name": "setBridgeContract",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_to",
+        "type": "address"
+      },
+      {
+        "name": "_value",
+        "type": "uint256"
+      },
+      {
+        "name": "_data",
+        "type": "bytes"
+      }
+    ],
+    "name": "transferAndCall",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getTokenInterfacesVersion",
+    "outputs": [
+      {
+        "name": "major",
+        "type": "uint64"
+      },
+      {
+        "name": "minor",
+        "type": "uint64"
+      },
+      {
+        "name": "patch",
+        "type": "uint64"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "pure",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_to",
+        "type": "address"
+      },
+      {
+        "name": "_value",
+        "type": "uint256"
+      }
+    ],
+    "name": "transfer",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [],
+    "name": "finishMinting",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [],
+    "name": "renounceOwnership",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_token",
+        "type": "address"
+      },
+      {
+        "name": "_to",
+        "type": "address"
+      }
+    ],
+    "name": "claimTokens",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  }
+]
diff --git a/abis/ForeignBridgeErc677ToErc677.abi.json b/abis/ForeignBridgeErc677ToErc677.abi.json
new file mode 100644
index 0000000..43735ae
--- /dev/null
+++ b/abis/ForeignBridgeErc677ToErc677.abi.json
@@ -0,0 +1,699 @@
+[
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "erc677token",
+    "outputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "_txHash",
+        "type": "bytes32"
+      }
+    ],
+    "name": "relayedMessages",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "vs",
+        "type": "uint8[]"
+      },
+      {
+        "name": "rs",
+        "type": "bytes32[]"
+      },
+      {
+        "name": "ss",
+        "type": "bytes32[]"
+      },
+      {
+        "name": "message",
+        "type": "bytes"
+      }
+    ],
+    "name": "executeSignatures",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "_day",
+        "type": "uint256"
+      }
+    ],
+    "name": "totalSpentPerDay",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "isInitialized",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_dailyLimit",
+        "type": "uint256"
+      }
+    ],
+    "name": "setExecutionDailyLimit",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getCurrentDay",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "requiredBlockConfirmations",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getBridgeMode",
+    "outputs": [
+      {
+        "name": "_data",
+        "type": "bytes4"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "pure",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "executionDailyLimit",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "_day",
+        "type": "uint256"
+      }
+    ],
+    "name": "totalExecutedPerDay",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "dailyLimit",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_token",
+        "type": "address"
+      },
+      {
+        "name": "_to",
+        "type": "address"
+      }
+    ],
+    "name": "claimTokens",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "_amount",
+        "type": "uint256"
+      }
+    ],
+    "name": "withinExecutionLimit",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "executionMaxPerTx",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "requiredSignatures",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "owner",
+    "outputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "validatorContract",
+    "outputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "deployedAtBlock",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "getBridgeInterfacesVersion",
+    "outputs": [
+      {
+        "name": "major",
+        "type": "uint64"
+      },
+      {
+        "name": "minor",
+        "type": "uint64"
+      },
+      {
+        "name": "patch",
+        "type": "uint64"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "pure",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_minPerTx",
+        "type": "uint256"
+      }
+    ],
+    "name": "setMinPerTx",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_from",
+        "type": "address"
+      },
+      {
+        "name": "_value",
+        "type": "uint256"
+      },
+      {
+        "name": "",
+        "type": "bytes"
+      }
+    ],
+    "name": "onTokenTransfer",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_blockConfirmations",
+        "type": "uint256"
+      }
+    ],
+    "name": "setRequiredBlockConfirmations",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_dailyLimit",
+        "type": "uint256"
+      }
+    ],
+    "name": "setDailyLimit",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_gasPrice",
+        "type": "uint256"
+      }
+    ],
+    "name": "setGasPrice",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_maxPerTx",
+        "type": "uint256"
+      }
+    ],
+    "name": "setMaxPerTx",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "upgradeabilityAdmin",
+    "outputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "minPerTx",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      {
+        "name": "_amount",
+        "type": "uint256"
+      }
+    ],
+    "name": "withinLimit",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_maxPerTx",
+        "type": "uint256"
+      }
+    ],
+    "name": "setExecutionMaxPerTx",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "newOwner",
+        "type": "address"
+      }
+    ],
+    "name": "transferOwnership",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "maxPerTx",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "gasPrice",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "name": "recipient",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "value",
+        "type": "uint256"
+      }
+    ],
+    "name": "UserRequestForAffirmation",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "name": "recipient",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "value",
+        "type": "uint256"
+      },
+      {
+        "indexed": false,
+        "name": "transactionHash",
+        "type": "bytes32"
+      }
+    ],
+    "name": "RelayedMessage",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "name": "gasPrice",
+        "type": "uint256"
+      }
+    ],
+    "name": "GasPriceChanged",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "name": "requiredBlockConfirmations",
+        "type": "uint256"
+      }
+    ],
+    "name": "RequiredBlockConfirmationChanged",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "name": "newLimit",
+        "type": "uint256"
+      }
+    ],
+    "name": "DailyLimitChanged",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "name": "newLimit",
+        "type": "uint256"
+      }
+    ],
+    "name": "ExecutionDailyLimitChanged",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      {
+        "indexed": false,
+        "name": "previousOwner",
+        "type": "address"
+      },
+      {
+        "indexed": false,
+        "name": "newOwner",
+        "type": "address"
+      }
+    ],
+    "name": "OwnershipTransferred",
+    "type": "event"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      {
+        "name": "_validatorContract",
+        "type": "address"
+      },
+      {
+        "name": "_erc20token",
+        "type": "address"
+      },
+      {
+        "name": "_requiredBlockConfirmations",
+        "type": "uint256"
+      },
+      {
+        "name": "_gasPrice",
+        "type": "uint256"
+      },
+      {
+        "name": "_dailyLimit",
+        "type": "uint256"
+      },
+      {
+        "name": "_maxPerTx",
+        "type": "uint256"
+      },
+      {
+        "name": "_minPerTx",
+        "type": "uint256"
+      },
+      {
+        "name": "_homeDailyLimit",
+        "type": "uint256"
+      },
+      {
+        "name": "_homeMaxPerTx",
+        "type": "uint256"
+      },
+      {
+        "name": "_owner",
+        "type": "address"
+      }
+    ],
+    "name": "initialize",
+    "outputs": [
+      {
+        "name": "",
+        "type": "bool"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "erc20token",
+    "outputs": [
+      {
+        "name": "",
+        "type": "address"
+      }
+    ],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  }
+]
diff --git a/config/affirmation-request-watcher.config.js b/config/affirmation-request-watcher.config.js
index 24e770d..967ba53 100644
--- a/config/affirmation-request-watcher.config.js
+++ b/config/affirmation-request-watcher.config.js
@@ -1,11 +1,30 @@
 require('dotenv').config()
 const baseConfig = require('./base.config')
 const erc20Abi = require('../abis/ERC20.abi')
+const { ERC_TYPES } = require('../src/utils/constants')
+
+const initialChecksJson = process.argv[3]
+
+if (!initialChecksJson) {
+  throw new Error('initial check parameter was not provided.')
+}
+
+let initialChecks
+try {
+  initialChecks = JSON.parse(initialChecksJson)
+} catch (e) {
+  throw new Error('Error on decoding values from initial checks.')
+}
+
+if (baseConfig.id === 'erc-erc' && initialChecks.foreignERC === ERC_TYPES.ERC677) {
+  baseConfig.id = 'erc677-erc677'
+}
 
 const id = `${baseConfig.id}-affirmation-request`
 
 module.exports =
-  baseConfig.id === 'erc-erc' || baseConfig.id === 'erc-native'
+  (baseConfig.id === 'erc-erc' && initialChecks.foreignERC === ERC_TYPES.ERC20) ||
+  baseConfig.id === 'erc-native'
     ? {
         ...baseConfig.bridgeConfig,
         ...baseConfig.foreignConfig,
diff --git a/config/base.config.js b/config/base.config.js
index ed3799d..27b0537 100644
--- a/config/base.config.js
+++ b/config/base.config.js
@@ -8,7 +8,7 @@ const homeNativeErcAbi = require('../abis/HomeBridgeNativeToErc.abi')
 const foreignNativeErcAbi = require('../abis/ForeignBridgeNativeToErc.abi')
 
 const homeErcErcAbi = require('../abis/HomeBridgeErcToErc.abi')
-const foreignErcErcAbi = require('../abis/ForeignBridgeErcToErc.abi')
+const foreignErc677Erc677Abi = require('../abis/ForeignBridgeErc677ToErc677.abi')
 
 const homeErcNativeAbi = require('../abis/HomeBridgeErcToNative.abi')
 const foreignErcNativeAbi = require('../abis/ForeignBridgeErcToNative.abi')
@@ -27,7 +27,7 @@ switch (process.env.BRIDGE_MODE) {
     break
   case 'ERC_TO_ERC':
     homeAbi = homeErcErcAbi
-    foreignAbi = foreignErcErcAbi
+    foreignAbi = foreignErc677Erc677Abi
     id = 'erc-erc'
     break
   case 'ERC_TO_NATIVE':
diff --git a/e2e/parity/Dockerfile b/e2e/parity/Dockerfile
index c8589f8..2a61df9 100644
--- a/e2e/parity/Dockerfile
+++ b/e2e/parity/Dockerfile
@@ -1,4 +1,4 @@
-FROM parity/parity:v2.2.11
+FROM parity/parity:v2.3.3
 
 WORKDIR /stuff
 
diff --git a/scripts/initialChecks.js b/scripts/initialChecks.js
new file mode 100644
index 0000000..0f9940d
--- /dev/null
+++ b/scripts/initialChecks.js
@@ -0,0 +1,33 @@
+const path = require('path')
+require('dotenv').config({
+  path: path.join(__dirname, '../.env')
+})
+const Web3 = require('web3')
+const ERC677BridgeTokenABI = require('../abis/ERC677BridgeToken.abi')
+const { ERC_TYPES } = require('../src/utils/constants')
+
+async function initialChecks() {
+  const { ERC20_TOKEN_ADDRESS, BRIDGE_MODE, FOREIGN_RPC_URL, FOREIGN_BRIDGE_ADDRESS } = process.env
+  const result = {}
+
+  if (BRIDGE_MODE === 'ERC_TO_ERC') {
+    const foreignWeb3 = new Web3(new Web3.providers.HttpProvider(FOREIGN_RPC_URL))
+    const tokenContract = new foreignWeb3.eth.Contract(ERC677BridgeTokenABI, ERC20_TOKEN_ADDRESS)
+    try {
+      const bridgeContract = await tokenContract.methods.bridgeContract().call()
+      if (bridgeContract === FOREIGN_BRIDGE_ADDRESS) {
+        result.foreignERC = ERC_TYPES.ERC677
+      } else {
+        result.foreignERC = ERC_TYPES.ERC20
+      }
+    } catch (e) {
+      result.foreignERC = ERC_TYPES.ERC20
+    }
+  }
+  console.log(JSON.stringify(result))
+  return result
+}
+
+initialChecks()
+
+module.exports = initialChecks
diff --git a/scripts/start-worker.sh b/scripts/start-worker.sh
index d0c7dec..374e040 100755
--- a/scripts/start-worker.sh
+++ b/scripts/start-worker.sh
@@ -9,8 +9,10 @@ WORKER="${WORKERS_DIR}${1}.js"
 CONFIG="${2}.config.js"
 LOG="${LOGS_DIR}${2}.txt"
 
+CHECKS=$(node scripts/initialChecks.js)
+
 if [ "${NODE_ENV}" = "production" ]; then
-  exec node "${WORKER}" "${CONFIG}"
+  exec node "${WORKER}" "${CONFIG}" "$CHECKS"
 else
-  node "${WORKER}" "${CONFIG}" | tee -a "${LOG}" | pino-pretty
+  node "${WORKER}" "${CONFIG}" "$CHECKS" | tee -a "${LOG}" | pino-pretty
 fi
diff --git a/src/utils/constants.js b/src/utils/constants.js
index 5351781..55a2861 100644
--- a/src/utils/constants.js
+++ b/src/utils/constants.js
@@ -16,5 +16,9 @@ module.exports = {
   GAS_PRICE_BOUNDARIES: {
     MIN: 1,
     MAX: 250
+  },
+  ERC_TYPES: {
+    ERC20: 'ERC20',
+    ERC677: 'ERC677'
   }
 }
diff --git a/src/watcher.js b/src/watcher.js
index dbdfb17..e566c5b 100644
--- a/src/watcher.js
+++ b/src/watcher.js
@@ -95,6 +95,7 @@ function processEvents(events) {
     case 'erc-native-collected-signatures':
       return processCollectedSignatures(events)
     case 'native-erc-affirmation-request':
+    case 'erc677-erc677-affirmation-request':
       return processAffirmationRequests(events)
     case 'erc-erc-affirmation-request':
     case 'erc-native-affirmation-request':