diff --git a/Cargo.lock b/Cargo.lock
index c52e0c3e..0db1501f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1926,6 +1926,15 @@ dependencies = [
  "tracing-subscriber 0.3.22",
 ]
 
+[[package]]
+name = "base-client-cli"
+version = "0.2.1"
+dependencies = [
+ "alloy-rpc-types-engine",
+ "clap",
+ "url",
+]
+
 [[package]]
 name = "base-client-node"
 version = "0.2.1"
diff --git a/Cargo.toml b/Cargo.toml
index e727a771..e626e08b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -60,6 +60,7 @@ base-flashtypes = { path = "crates/shared/flashtypes" }
 base-primitives = { path = "crates/shared/primitives" }
 base-reth-rpc-types = { path = "crates/shared/reth-rpc-types" }
 # Client
+base-client-cli = { path = "crates/client/cli" }
 base-client-node = { path = "crates/client/node" }
 base-metering = { path = "crates/client/metering" }
 base-txpool = { path = "crates/client/txpool" }
diff --git a/crates/client/cli/Cargo.toml b/crates/client/cli/Cargo.toml
new file mode 100644
index 00000000..463d0954
--- /dev/null
+++ b/crates/client/cli/Cargo.toml
@@ -0,0 +1,18 @@
+[package]
+name = "base-client-cli"
+description = "CLI argument types for Base node consensus clients"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+homepage.workspace = true
+repository.workspace = true
+
+[lints]
+workspace = true
+
+[dependencies]
+# General
+url.workspace = true
+clap.workspace = true
+alloy-rpc-types-engine.workspace = true
diff --git a/crates/client/cli/README.md b/crates/client/cli/README.md
new file mode 100644
index 00000000..6c318034
--- /dev/null
+++ b/crates/client/cli/README.md
@@ -0,0 +1,34 @@
+# `base-client-cli`
+
+CLI argument types for Base node consensus clients.
+
+## Overview
+
+This crate provides reusable CLI argument types for configuring Base node consensus clients:
+
+- **`L1ClientArgs`**: L1 execution client RPC configuration
+- **`L2ClientArgs`**: L2 engine API configuration with JWT handling
+
+## Usage
+
+```toml
+[dependencies]
+base-client-cli = { workspace = true }
+```
+
+```rust
+use base_client_cli::{L1ClientArgs, L2ClientArgs};
+use clap::Parser;
+
+#[derive(Parser)]
+struct Cli {
+    #[clap(flatten)]
+    l1_args: L1ClientArgs,
+    #[clap(flatten)]
+    l2_args: L2ClientArgs,
+}
+```
+
+## License
+
+Licensed under the MIT License.
diff --git a/crates/client/cli/src/l1.rs b/crates/client/cli/src/l1.rs
new file mode 100644
index 00000000..b4a36d27
--- /dev/null
+++ b/crates/client/cli/src/l1.rs
@@ -0,0 +1,47 @@
+//! L1 Client CLI arguments.
+
+use url::Url;
+
+const DEFAULT_L1_TRUST_RPC: bool = true;
+
+/// L1 client arguments.
+#[derive(Clone, Debug, clap::Args)]
+pub struct L1ClientArgs {
+    /// URL of the L1 execution client RPC API.
+    #[arg(long, visible_alias = "l1", env = "KONA_NODE_L1_ETH_RPC")]
+    pub l1_eth_rpc: Url,
+    /// Whether to trust the L1 RPC.
+    /// If false, block hash verification is performed for all retrieved blocks.
+    #[arg(
+        long,
+        visible_alias = "l1.trust-rpc",
+        env = "KONA_NODE_L1_TRUST_RPC",
+        default_value_t = DEFAULT_L1_TRUST_RPC
+    )]
+    pub l1_trust_rpc: bool,
+    /// URL of the L1 beacon API.
+    #[arg(long, visible_alias = "l1.beacon", env = "KONA_NODE_L1_BEACON")]
+    pub l1_beacon: Url,
+    /// Duration in seconds of an L1 slot.
+    ///
+    /// This is an optional argument that can be used to use a fixed slot duration for l1 blocks
+    /// and bypass the initial beacon spec fetch. This is useful for testing purposes when the
+    /// l1-beacon spec endpoint is not available (with anvil for example).
+    #[arg(
+        long,
+        visible_alias = "l1.slot-duration-override",
+        env = "KONA_NODE_L1_SLOT_DURATION_OVERRIDE"
+    )]
+    pub l1_slot_duration_override: Option<u64>,
+}
+
+impl Default for L1ClientArgs {
+    fn default() -> Self {
+        Self {
+            l1_eth_rpc: Url::parse("http://localhost:8545").unwrap(),
+            l1_trust_rpc: DEFAULT_L1_TRUST_RPC,
+            l1_beacon: Url::parse("http://localhost:5052").unwrap(),
+            l1_slot_duration_override: None,
+        }
+    }
+}
diff --git a/crates/client/cli/src/l2.rs b/crates/client/cli/src/l2.rs
new file mode 100644
index 00000000..ed0198d8
--- /dev/null
+++ b/crates/client/cli/src/l2.rs
@@ -0,0 +1,53 @@
+//! L2 Client CLI arguments with JWT handling.
+
+use std::path::PathBuf;
+
+use alloy_rpc_types_engine::JwtSecret;
+use url::Url;
+
+const DEFAULT_L2_ENGINE_TIMEOUT: u64 = 30_000;
+const DEFAULT_L2_TRUST_RPC: bool = true;
+
+/// L2 client arguments.
+#[derive(Clone, Debug, clap::Args)]
+pub struct L2ClientArgs {
+    /// URI of the engine API endpoint of an L2 execution client.
+    #[arg(long, visible_alias = "l2", env = "KONA_NODE_L2_ENGINE_RPC")]
+    pub l2_engine_rpc: Url,
+    /// JWT secret for the auth-rpc endpoint of the execution client.
+    /// This MUST be a valid path to a file containing the hex-encoded JWT secret.
+    #[arg(long, visible_alias = "l2.jwt-secret", env = "KONA_NODE_L2_ENGINE_AUTH")]
+    pub l2_engine_jwt_secret: Option<PathBuf>,
+    /// Hex encoded JWT secret to use for the authenticated engine-API RPC server.
+    /// This MUST be a valid hex-encoded JWT secret of 64 digits.
+    #[arg(long, visible_alias = "l2.jwt-secret-encoded", env = "KONA_NODE_L2_ENGINE_AUTH_ENCODED")]
+    pub l2_engine_jwt_encoded: Option<JwtSecret>,
+    /// Timeout for http calls in milliseconds.
+    #[arg(
+        long,
+        visible_alias = "l2.timeout",
+        env = "KONA_NODE_L2_ENGINE_TIMEOUT",
+        default_value_t = DEFAULT_L2_ENGINE_TIMEOUT
+    )]
+    pub l2_engine_timeout: u64,
+    /// If false, block hash verification is performed for all retrieved blocks.
+    #[arg(
+        long,
+        visible_alias = "l2.trust-rpc",
+        env = "KONA_NODE_L2_TRUST_RPC",
+        default_value_t = DEFAULT_L2_TRUST_RPC
+    )]
+    pub l2_trust_rpc: bool,
+}
+
+impl Default for L2ClientArgs {
+    fn default() -> Self {
+        Self {
+            l2_engine_rpc: Url::parse("http://localhost:8551").unwrap(),
+            l2_engine_jwt_secret: None,
+            l2_engine_jwt_encoded: None,
+            l2_engine_timeout: DEFAULT_L2_ENGINE_TIMEOUT,
+            l2_trust_rpc: DEFAULT_L2_TRUST_RPC,
+        }
+    }
+}
diff --git a/crates/client/cli/src/lib.rs b/crates/client/cli/src/lib.rs
new file mode 100644
index 00000000..ad91a070
--- /dev/null
+++ b/crates/client/cli/src/lib.rs
@@ -0,0 +1,10 @@
+#![doc = include_str!("../README.md")]
+#![doc(issue_tracker_base_url = "https://github.com/base/node-reth/issues/")]
+#![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
+#![cfg_attr(not(test), warn(unused_crate_dependencies))]
+
+mod l1;
+pub use l1::L1ClientArgs;
+
+mod l2;
+pub use l2::L2ClientArgs;