diff --git a/Cargo.lock b/Cargo.lock
index 7f351a8..44f76d2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -510,6 +510,7 @@ dependencies = [
  "ethers",
  "eyre",
  "hex",
+ "openssl",
  "serde",
  "ssz-rs",
  "toml",
@@ -544,6 +545,7 @@ dependencies = [
  "hex",
  "jsonrpsee",
  "log",
+ "openssl",
  "reqwest",
  "revm",
  "serde",
@@ -1021,6 +1023,7 @@ dependencies = [
  "futures",
  "hex",
  "jsonrpsee",
+ "openssl",
  "reqwest",
  "revm",
  "serde",
diff --git a/cli/src/main.rs b/cli/src/main.rs
index e528e1a..49270df 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -21,6 +21,7 @@ async fn main() -> Result<()> {
 fn get_config() -> Result<Config> {
     let cli = Cli::parse();
     let mut config = match cli.network.as_str() {
+        "mainnet" => networks::mainnet(),
         "goerli" => networks::goerli(),
         _ => {
             let home = home_dir().unwrap();
@@ -50,7 +51,7 @@ fn get_config() -> Result<Config> {
 
 #[derive(Parser)]
 struct Cli {
-    #[clap(short, long, default_value = "goerli")]
+    #[clap(short, long, default_value = "mainnet")]
     network: String,
     #[clap(short, long)]
     port: Option<u16>,
diff --git a/config/configs/mainnet.toml b/config/configs/mainnet.toml
new file mode 100644
index 0000000..6efde10
--- /dev/null
+++ b/config/configs/mainnet.toml
@@ -0,0 +1,22 @@
+[general]
+chain_id = 1
+genesis_time = 1606824023
+genesis_root = "0x4b363db94e286120d76eb905340fdd4e54bfe9f06bf33ff6cf5ad27f511bfe95"
+checkpoint = "0x03e315e11b3f88cd63dfb62c74a313c4a65949ce9e37599e0ee66533ceceadfd"
+consensus_rpc = "http://testing.mainnet.beacon-api.nimbus.team"
+execution_rpc = "https://eth-mainnet.g.alchemy.com/v2/Q0BqQPbTQfSMzrCNl4x80XS_PLLB1RNf"
+rpc_port = 8545
+
+[forks]
+
+[forks.genesis]
+epoch = 0
+fork_version = "0x00000000"
+
+[forks.altair]
+epoch = 74240
+fork_version = "0x01000000"
+
+[forks.bellatrix]
+epoch = 144896
+fork_version = "0x02000000"
diff --git a/config/src/networks.rs b/config/src/networks.rs
index d836c3b..765fd30 100644
--- a/config/src/networks.rs
+++ b/config/src/networks.rs
@@ -2,6 +2,41 @@ use common::utils::hex_str_to_bytes;
 
 use crate::{Config, Fork, Forks, General};
 
+pub fn mainnet() -> Config {
+    Config {
+        general: General {
+            chain_id: 1,
+            genesis_time: 1606824023,
+            genesis_root: hex_str_to_bytes(
+                "0x4b363db94e286120d76eb905340fdd4e54bfe9f06bf33ff6cf5ad27f511bfe95",
+            )
+            .unwrap(),
+            checkpoint: hex_str_to_bytes(
+                "0x03e315e11b3f88cd63dfb62c74a313c4a65949ce9e37599e0ee66533ceceadfd",
+            )
+            .unwrap(),
+            consensus_rpc: "http://testing.mainnet.beacon-api.nimbus.team".to_string(),
+            execution_rpc: "https://eth-mainnet.g.alchemy.com/v2/Q0BqQPbTQfSMzrCNl4x80XS_PLLB1RNf"
+                .to_string(),
+            rpc_port: Some(8545),
+        },
+        forks: Forks {
+            genesis: Fork {
+                epoch: 0,
+                fork_version: hex_str_to_bytes("0x00000000").unwrap(),
+            },
+            altair: Fork {
+                epoch: 74240,
+                fork_version: hex_str_to_bytes("0x01000000").unwrap(),
+            },
+            bellatrix: Fork {
+                epoch: 144896,
+                fork_version: hex_str_to_bytes("0x02000000").unwrap(),
+            },
+        },
+    }
+}
+
 pub fn goerli() -> Config {
     Config {
         general: General {