diff --git a/environments/gen.toml b/environments/gen.toml
new file mode 100644
index 0000000..79b5485
--- /dev/null
+++ b/environments/gen.toml
@@ -0,0 +1,39 @@
+[eth]
+    keyDirPath = "" # path to the directory with all of the key pairs to use - env: $ETH_KEY_DIR_PATH
+    addrFilePath = "" # path to a file with a newline seperated list of addresses we want to send value transfers to - env: $ETH_ADDR_DIR_PATH
+    httpPath = "" # http url for the node we wish to send all our transactions to - env: $ETH_HTTP_PATH
+    chainID = 421 # chain id - env: $ETH_CHAIN_ID
+    type = "L2" # tx type (EIP1559, Standard, or L2) - env: $ETH_TX_TYPE
+
+[deployment]
+    number = 1 # number of contracts we will deploy for each key at keyPath - env: $ETH_DEPLOYMENT_NUMBER
+    hexData = "" # hex data for the contracts we will deploy - env: $ETH_DEPLOYMENT_HEX_DATA
+    gasLimit = 0 # gasLimit to use for the deployment txs - env: $ETH_DEPLOYMENT_GAS_LIMIT
+    gasPrice = "0" # gasPrice to use for the deployment txs - env: $ETH_DEPLOYMENT_GAS_PRICE
+
+[optimism]
+    l1Sender = "" # l1 sender address hex to use for all txs - env: $ETH_OPTIMISM_L1_SENDER
+    l1RollupTxId = 0 # rollup tx id to use for all txs - env: $ETH_OPTIMISM_ROLLUP_TX_ID
+    sigHashType = 0 # sig hash type to use for all txs - env: $ETH_OPTIMISM_SIG_HASH_TYPE
+    queueOrigin = 0 # queue origin id to use for all txs - env: $ETH_OPTIMISM_QUEUE_ORIGIN
+
+[contractSpammer]
+    frequency = 30 # how often to send a transaction (in seconds) - env: $ETH_CALL_FREQ
+    totalNumber = 10000 # total number of transactions to send (across all senders) - env: $ETH_CALL_TOTAL_NUMBER
+    abiPath = "" # path to the abi file for the contract we are calling - env: $ETH_CALL_ABI_PATH
+    # NOTE: we expect to be calling a method such as Put(uint256 pos, uint256 val) where the first argument is an
+    # integer than we can increment to store values at new locations in the contract trie (to grow it) and
+    # the second argument is an integer value that we store at these positions
+    methodName = "Put" # the method name we are calling - env: $ETH_CALL_METHOD_NAME
+    positionStart = 0 # the starting value for the first argument - env: $ETH_CALL_POSITION_START
+    positionEnd = 1000 # the maximum value for the first argument - env: $ETH_CALL_POSITION_END
+    storageValue =  1337 # the value we store at each position - env: $ETH_CALL_STORAGE_VALUE
+    gasLimit = 0 # gasLimit to use for the eth call txs - env: $ETH_CALL_GAS_LIMIT
+    gasPrice = "0" # gasPrice to use for the eth call txs - env: $ETH_CALL_GAS_PRICE
+
+[sendSpammer]
+    frequency = 30 # how often to send a transaction (in seconds) - env: $ETH_SEND_FREQ
+    totalNumber = 10000 # total number of transactions to send (across all senders) - env: $ETH_SEND_TOTAL_NUMBER
+    amount = "1" # amount of wei (1x10^-18 ETH) to send in each tx (be mindful of the genesis allocations) - env: $ETH_SEND_AMOUNT
+    gasLimit = 0 # gasLimit to use for the eth transfer txs - env: $ETH_SEND_GAS_LIMIT
+    gasPrice = "0" # gasPrice to use for the eth transfer txs - env: $ETH_SEND_GAS_PRICE
diff --git a/pkg/auto/config.go b/pkg/auto/config.go
new file mode 100644
index 0000000..fae2dd3
--- /dev/null
+++ b/pkg/auto/config.go
@@ -0,0 +1,394 @@
+// VulcanizeDB
+// Copyright © 2020 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package auto
+
+import (
+	"bufio"
+	"bytes"
+	"crypto/ecdsa"
+	"fmt"
+	"io/ioutil"
+	"math/big"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/spf13/viper"
+	"github.com/vulcanize/tx_spammer/pkg/shared"
+)
+
+const (
+	// toml bindings
+	ethKeyDirPath   = "eth.keyDirPath"
+	ethAddrFilePath = "eth.addrFilePath"
+	ethHttpPath     = "eth.httpPath"
+	ethChainID      = "eth.chainID"
+	ethType         = "eth.type"
+
+	ethDeploymentNumber   = "deployment.number"
+	ethDeploymentData     = "deployment.hexData"
+	ethDeploymentGasPrice = "deployment.gasPrice"
+	ethDeploymentGasLimit = "deployment.gasLimit"
+
+	ethOptimismL1Sender    = "optimism.l1Sender"
+	ethOptimismRollupTxID  = "optimism.l1RollupTxId"
+	ethOptimismSigHashType = "optimism.sigHashType"
+	ethOptimismQueueOrigin = "optimism.queueOrigin"
+
+	ethCallFrequency     = "contractSpammer.frequency"
+	ethCallTotalNumber   = "contractSpammer.totalNumber"
+	ethCallABIPath       = "contractSpammer.abiPath"
+	ethCallMethodName    = "contractSpammer.methodName"
+	ethCallPositionStart = "contractSpammer.positionStart"
+	ethCallPositionEnd   = "contractSpammer.positionEnd"
+	ethCallStorageValue  = "contractSpammer.storageValue"
+	ethCallGasLimit      = "contractSpammer.gasLimit"
+	ethCallGasPrice      = "contractSpammer.gasPrice"
+
+	ethSendFrequency   = "sendSpammer.frequency"
+	ethSendTotalNumber = "sendSpammer.totalNumber"
+	ethSendAmount      = "sendSpammer.amount"
+	ethSendGasLimit    = "sendSpammer.gasLimit"
+	ethSendGasPrice    = "sendSpammer.gasPrice"
+
+	// env variables
+	ETH_KEY_DIR_PATH  = "ETH_KEY_DIR_PATH"
+	ETH_ADDR_DIR_PATH = "ETH_ADDR_DIR_PATH"
+	ETH_HTTP_PATH     = "ETH_HTTP_PATH"
+	ETH_CHAIN_ID      = "ETH_CHAIN_ID"
+	ETH_TX_TYPE       = "ETH_TX_TYPE"
+
+	ETH_DEPLOYMENT_NUMBER    = "ETH_DEPLOYMENT_NUMBER"
+	ETH_DEPLOYMENT_HEX_DATA  = "ETH_DEPLOYMENT_HEX_DATA"
+	ETH_DEPLOYMENT_GAS_LIMIT = "ETH_DEPLOYMENT_GAS_LIMIT"
+	ETH_DEPLOYMENT_GAS_PRICE = "ETH_DEPLOYMENT_GAS_PRICE"
+
+	ETH_OPTIMISM_L1_SENDER     = "ETH_OPTIMISM_L1_SENDER"
+	ETH_OPTIMISM_ROLLUP_TX_ID  = "ETH_OPTIMISM_ROLLUP_TX_ID"
+	ETH_OPTIMISM_SIG_HASH_TYPE = "ETH_OPTIMISM_SIG_HASH_TYPE"
+	ETH_OPTIMISM_QUEUE_ORIGIN  = "ETH_OPTIMISM_QUEUE_ORIGIN"
+
+	ETH_CALL_FREQ           = "ETH_CALL_FREQ"
+	ETH_CALL_TOTAL_NUMBER   = "ETH_CALL_TOTAL_NUMBER"
+	ETH_CALL_ABI_PATH       = "ETH_CALL_ABI_PATH"
+	ETH_CALL_METHOD_NAME    = "ETH_CALL_METHOD_NAME"
+	ETH_CALL_POSITION_START = "ETH_CALL_POSITION_START"
+	ETH_CALL_POSITION_END   = "ETH_CALL_POSITION_END"
+	ETH_CALL_STORAGE_VALUE  = "ETH_CALL_STORAGE_VALUE"
+	ETH_CALL_GAS_LIMIT      = "ETH_CALL_GAS_LIMIT"
+	ETH_CALL_GAS_PRICE      = "ETH_CALL_GAS_PRICE"
+
+	ETH_SEND_FREQ         = "ETH_SEND_FREQ"
+	ETH_SEND_TOTAL_NUMBER = "ETH_SEND_TOTAL_NUMBER"
+	ETH_SEND_AMOUNT       = "ETH_SEND_AMOUNT"
+	ETH_SEND_GAS_LIMIT    = "ETH_SEND_GAS_LIMIT"
+	ETH_SEND_GAS_PRICE    = "ETH_SEND_GAS_PRICE"
+)
+
+// Config holds all the parameters for the auto tx spammer
+type Config struct {
+	// HTTP client for sending transactions
+	Client *rpc.Client
+
+	// Key pairs for the accounts we will use to deploy contracts and send txs
+	SenderKeys []*ecdsa.PrivateKey
+
+	// Addresses to send eth transfer txs to
+	DestinationAddrs []common.Address
+
+	// Type of the txs we are working with
+	Type shared.TxType
+
+	// Chain ID for the chain we are working with
+	ChainID uint64
+
+	// Optimism-specific metadata fields (optional)
+	L1SenderAddr *common.Address
+	L1RollupTxId *hexutil.Uint64
+	SigHashType  types.SignatureHashType
+	QueueOrigin  types.QueueOrigin
+
+	// Configuration for the initial contract deployment
+	DeploymentConfig *DeploymentConfig
+
+	// Configuration for the contract calling txs
+	CallConfig *CallConfig
+
+	// Configuration for the eth transfer txs
+	SendConfig *SendConfig
+}
+
+// DeploymentConfig holds the parameters for the contract deployment contracts
+type DeploymentConfig struct {
+	GasLimit uint64
+	GasPrice *big.Int
+	Data     []byte
+
+	Number uint64
+}
+
+// CallConfig holds the parameters for the contract calling txs
+type CallConfig struct {
+	GasLimit      uint64
+	GasPrice      *big.Int
+	MethodName    string
+	ABI           abi.ABI
+	PositionStart uint64
+	PositionEnd   uint64
+	StorageValue  uint64
+
+	Frequency time.Duration
+	Number    uint64
+}
+
+// SendConfig holds the parameters for the eth transfer txs
+type SendConfig struct {
+	GasLimit uint64
+	GasPrice *big.Int
+	Amount   *big.Int
+
+	Frequency time.Duration
+	Number    uint64
+}
+
+func NewConfig() (*Config, error) {
+	viper.BindEnv(ethKeyDirPath, ETH_KEY_DIR_PATH)
+	viper.BindEnv(ethAddrFilePath, ETH_ADDR_DIR_PATH)
+	viper.BindEnv(ethHttpPath, ETH_HTTP_PATH)
+	viper.BindEnv(ethType, ETH_TX_TYPE)
+	viper.BindEnv(ethChainID, ETH_CHAIN_ID)
+
+	viper.BindEnv(ethOptimismL1Sender, ETH_OPTIMISM_L1_SENDER)
+	viper.BindEnv(ethOptimismQueueOrigin, ETH_OPTIMISM_QUEUE_ORIGIN)
+	viper.BindEnv(ethOptimismRollupTxID, ETH_OPTIMISM_ROLLUP_TX_ID)
+	viper.BindEnv(ethOptimismSigHashType, ETH_OPTIMISM_SIG_HASH_TYPE)
+
+	// Initialize rpc client
+	httpPathStr := viper.GetString(ethHttpPath)
+	if httpPathStr == "" {
+		return nil, fmt.Errorf("missing %s", ethHttpPath)
+	}
+	if !strings.HasPrefix(httpPathStr, "http://") {
+		httpPathStr = "http://" + httpPathStr
+	}
+	rpcClient, err := rpc.Dial(httpPathStr)
+	if err != nil {
+		return nil, err
+	}
+
+	// Load keys
+	keyDirPath := viper.GetString(ethKeyDirPath)
+	if keyDirPath == "" {
+		return nil, fmt.Errorf("missing %s", ethKeyDirPath)
+	}
+	keyFiles, err := ioutil.ReadDir(keyDirPath)
+	if err != nil {
+		return nil, err
+	}
+	keys := make([]*ecdsa.PrivateKey, 0)
+	for _, keyFile := range keyFiles {
+		if keyFile.IsDir() {
+			continue
+		}
+		filePath := filepath.Join(keyDirPath, keyFile.Name())
+		key, err := crypto.LoadECDSA(filePath)
+		if err != nil {
+			return nil, fmt.Errorf("unable to load ecdsa key file at %s", filePath)
+		}
+		keys = append(keys, key)
+	}
+
+	// Load eth transfer destination addresses
+	addrs := make([]common.Address, 0)
+	addrFilePath := viper.GetString(ethAddrFilePath)
+	if addrFilePath == "" {
+		return nil, fmt.Errorf("missing %s", ethAddrFilePath)
+	}
+	addrFile, err := os.Open(addrFilePath)
+	if err != nil {
+		return nil, err
+	}
+	defer addrFile.Close()
+	scanner := bufio.NewScanner(addrFile)
+	for scanner.Scan() {
+		addrBytes := scanner.Bytes()
+		addr := common.BytesToAddress(addrBytes)
+		addrs = append(addrs, addr)
+	}
+	if err := scanner.Err(); err != nil {
+		return nil, err
+	}
+
+	// Load tx type
+	txType, err := shared.TxTypeFromString(viper.GetString(ethType))
+	if err != nil {
+		return nil, err
+	}
+
+	// Load optimism params
+	l1SenderStr := viper.GetString(ethOptimismL1Sender)
+	var l1Sender *common.Address
+	if l1SenderStr != "" {
+		sender := common.HexToAddress(l1SenderStr)
+		l1Sender = &sender
+	}
+	l1RollupTxId := viper.GetUint64(ethOptimismRollupTxID)
+	l1rtid := (hexutil.Uint64)(l1RollupTxId)
+	sigHashType := viper.GetUint(ethOptimismSigHashType)
+	queueOrigin := viper.GetInt64(ethOptimismQueueOrigin)
+
+	// Load deployment config
+	deploymentConfig, err := NewDeploymentConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	// Load call config
+	callConfig, err := NewCallConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	// Load send config
+	sendConfig, err := NewSendConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	// Assemble and return
+	return &Config{
+		Client:           rpcClient,
+		SenderKeys:       keys,
+		DestinationAddrs: addrs,
+		Type:             txType,
+		ChainID:          viper.GetUint64(ethChainID),
+
+		L1SenderAddr: l1Sender,
+		L1RollupTxId: &l1rtid,
+		SigHashType:  (types.SignatureHashType)(uint8(sigHashType)),
+		QueueOrigin:  (types.QueueOrigin)(queueOrigin),
+
+		DeploymentConfig: deploymentConfig,
+		CallConfig:       callConfig,
+		SendConfig:       sendConfig,
+	}, nil
+}
+
+// NewDeploymentConfig constructs and returns a new DeploymentConfig
+func NewDeploymentConfig() (*DeploymentConfig, error) {
+	viper.BindEnv(ethDeploymentNumber, ETH_DEPLOYMENT_NUMBER)
+	viper.BindEnv(ethDeploymentData, ETH_DEPLOYMENT_HEX_DATA)
+	viper.BindEnv(ethDeploymentGasLimit, ETH_DEPLOYMENT_GAS_LIMIT)
+	viper.BindEnv(ethDeploymentGasPrice, ETH_DEPLOYMENT_GAS_PRICE)
+
+	hexData := viper.GetString(ethDeploymentData)
+	data := common.Hex2Bytes(hexData)
+	gasPriceStr := viper.GetString(ethDeploymentGasPrice)
+	gasPrice, ok := new(big.Int).SetString(gasPriceStr, 10)
+	if !ok {
+		return nil, fmt.Errorf("unable to convert gasPrice string (%s) into big.Int", gasPriceStr)
+	}
+
+	return &DeploymentConfig{
+		Number:   viper.GetUint64(ethDeploymentNumber),
+		Data:     data,
+		GasPrice: gasPrice,
+		GasLimit: viper.GetUint64(ethDeploymentGasLimit),
+	}, nil
+}
+
+// NewCallConfig constructs and returns a new CallConfig
+func NewCallConfig() (*CallConfig, error) {
+	viper.BindEnv(ethCallABIPath, ETH_CALL_ABI_PATH)
+	viper.BindEnv(ethCallFrequency, ETH_CALL_FREQ)
+	viper.BindEnv(ethCallGasLimit, ETH_CALL_GAS_LIMIT)
+	viper.BindEnv(ethCallGasPrice, ETH_CALL_GAS_PRICE)
+	viper.BindEnv(ethCallMethodName, ETH_CALL_METHOD_NAME)
+	viper.BindEnv(ethCallPositionEnd, ETH_CALL_POSITION_END)
+	viper.BindEnv(ethCallPositionStart, ETH_CALL_POSITION_START)
+	viper.BindEnv(ethCallStorageValue, ETH_CALL_STORAGE_VALUE)
+	viper.BindEnv(ethCallTotalNumber, ETH_CALL_TOTAL_NUMBER)
+
+	gasPriceStr := viper.GetString(ethCallGasPrice)
+	gasPrice, ok := new(big.Int).SetString(gasPriceStr, 10)
+	if !ok {
+		return nil, fmt.Errorf("unable to convert gasPrice string (%s) into big.Int", gasPriceStr)
+	}
+	abiPath := viper.GetString(ethCallABIPath)
+	if abiPath == "" {
+		return nil, fmt.Errorf("missing contractSpammer.abiPath")
+	}
+	abiBytes, err := ioutil.ReadFile(abiPath)
+	if err != nil {
+		return nil, err
+	}
+	parsedABI, err := abi.JSON(bytes.NewReader(abiBytes))
+	if err != nil {
+		return nil, err
+	}
+	methodName := viper.GetString(ethCallMethodName)
+	_, exist := parsedABI.Methods[methodName]
+	if !exist {
+		return nil, fmt.Errorf("method '%s' not found in provided abi", methodName)
+	}
+
+	return &CallConfig{
+		Number:        viper.GetUint64(ethCallTotalNumber),
+		GasPrice:      gasPrice,
+		GasLimit:      viper.GetUint64(ethCallGasLimit),
+		MethodName:    methodName,
+		ABI:           parsedABI,
+		PositionEnd:   viper.GetUint64(ethCallPositionEnd),
+		PositionStart: viper.GetUint64(ethCallPositionStart),
+		StorageValue:  viper.GetUint64(ethCallStorageValue),
+		Frequency:     viper.GetDuration(ethCallFrequency),
+	}, nil
+}
+
+// NewSendConfig constructs and returns a new SendConfig
+func NewSendConfig() (*SendConfig, error) {
+	viper.BindEnv(ethSendFrequency, ETH_SEND_FREQ)
+	viper.BindEnv(ethSendTotalNumber, ETH_SEND_TOTAL_NUMBER)
+	viper.BindEnv(ethSendAmount, ETH_SEND_AMOUNT)
+	viper.BindEnv(ethSendGasLimit, ETH_SEND_GAS_LIMIT)
+	viper.BindEnv(ethSendGasPrice, ETH_SEND_GAS_PRICE)
+
+	amountStr := viper.GetString(ethSendAmount)
+	amount, ok := new(big.Int).SetString(amountStr, 10)
+	if !ok {
+		return nil, fmt.Errorf("unable to convert amount string (%s) into big.Int", amountStr)
+	}
+	gasPriceStr := viper.GetString(ethSendGasPrice)
+	gasPrice, ok := new(big.Int).SetString(gasPriceStr, 10)
+	if !ok {
+		return nil, fmt.Errorf("unable to convert gasPrice string (%s) into big.Int", gasPriceStr)
+	}
+	return &SendConfig{
+		Frequency: viper.GetDuration(ethSendFrequency),
+		Number:    viper.GetUint64(ethSendTotalNumber),
+		Amount:    amount,
+		GasPrice:  gasPrice,
+		GasLimit:  viper.GetUint64(ethSendGasLimit),
+	}, nil
+}