diff --git a/node/cli/src/chain_spec/mod.rs b/node/cli/src/chain_spec/mod.rs
index a4fbc6bcc..1a6fab785 100644
--- a/node/cli/src/chain_spec/mod.rs
+++ b/node/cli/src/chain_spec/mod.rs
@@ -33,6 +33,7 @@
 
 pub mod dev;
 pub mod integration_tests;
+pub mod tdx_testnet;
 pub mod testnet;
 
 pub use entropy_runtime::{AccountId, RuntimeGenesisConfig, Signature};
diff --git a/node/cli/src/chain_spec/tdx_testnet.rs b/node/cli/src/chain_spec/tdx_testnet.rs
new file mode 100644
index 000000000..9b1c8feeb
--- /dev/null
+++ b/node/cli/src/chain_spec/tdx_testnet.rs
@@ -0,0 +1,88 @@
+// Copyright (C) 2023 Entropy Cryptography Inc.
+//
+// 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 <https://www.gnu.org/licenses/>.
+
+use crate::chain_spec::{dev::development_genesis_config, get_account_id_from_seed, ChainSpec};
+
+use entropy_runtime::wasm_binary_unwrap;
+use entropy_shared::{BoundedVecEncodedVerifyingKey, X25519PublicKey as TssX25519PublicKey};
+use sc_service::ChainType;
+use sp_core::sr25519;
+
+lazy_static::lazy_static! {
+    pub static ref PCK: BoundedVecEncodedVerifyingKey = vec![
+    2, 166, 103, 136, 58, 157, 155, 124, 186, 75, 81, 133, 87, 255, 233, 182, 192, 125, 235, 230,
+    121, 173, 147, 108, 47, 190, 240, 181, 75, 181, 31, 148, 128,
+    ].try_into().unwrap();
+}
+
+fn tdx_devnet_four_node_initial_tss_servers(
+) -> Vec<(sp_runtime::AccountId32, TssX25519PublicKey, String, BoundedVecEncodedVerifyingKey)> {
+    let tss_ip = std::env::var("ENTROPY_TESTNET_TSS_IP")
+        .expect("ENTROPY_TESTNET_TSS_IP environment variable to be set");
+
+    let alice = (
+        crate::chain_spec::tss_account_id::ALICE.clone(),
+        crate::chain_spec::tss_x25519_public_key::ALICE,
+        format!("{tss_ip}:3001"),
+        PCK.clone(),
+    );
+
+    let bob = (
+        crate::chain_spec::tss_account_id::BOB.clone(),
+        crate::chain_spec::tss_x25519_public_key::BOB,
+        format!("{tss_ip}:3002"),
+        PCK.clone(),
+    );
+
+    let charlie = (
+        crate::chain_spec::tss_account_id::CHARLIE.clone(),
+        crate::chain_spec::tss_x25519_public_key::CHARLIE,
+        format!("{tss_ip}:3003"),
+        PCK.clone(),
+    );
+
+    let dave = (
+        crate::chain_spec::tss_account_id::DAVE.clone(),
+        crate::chain_spec::tss_x25519_public_key::DAVE,
+        format!("{tss_ip}:3004"),
+        PCK.clone(),
+    );
+
+    vec![alice, bob, charlie, dave]
+}
+
+/// The configuration used for development.
+///
+/// Since Entropy requires at two-of-three threshold setup, and requires an additional relayer node,
+/// we spin up four validators: Alice, Bob, Charlie and Dave.
+pub fn development_config() -> ChainSpec {
+    ChainSpec::builder(wasm_binary_unwrap(), Default::default())
+        .with_name("Development")
+        .with_id("dev")
+        .with_chain_type(ChainType::Development)
+        .with_properties(crate::chain_spec::entropy_properties())
+        .with_genesis_config_patch(development_genesis_config(
+            vec![
+                crate::chain_spec::authority_keys_from_seed("Alice"),
+                crate::chain_spec::authority_keys_from_seed("Bob"),
+                crate::chain_spec::authority_keys_from_seed("Charlie"),
+                crate::chain_spec::authority_keys_from_seed("Dave"),
+            ],
+            vec![],
+            get_account_id_from_seed::<sr25519::Public>("Alice"),
+            tdx_devnet_four_node_initial_tss_servers(),
+        ))
+        .build()
+}
diff --git a/node/cli/src/command.rs b/node/cli/src/command.rs
index b206b5ee5..49ef5fd28 100644
--- a/node/cli/src/command.rs
+++ b/node/cli/src/command.rs
@@ -74,6 +74,7 @@ impl SubstrateCli for Cli {
     // | integration-tests | Two nodes, Four threshold servers, Alice and Bob, Development Configuration |
     // | testnet-local     | Two Nodes, Two threshold servers, Alice and Bob, Testnet Configuration, Docker Compatible |
     // | testnet           | Four nodes, Two threshold servers, Own Seed, Testnet Configuration |
+    // | tdx-testnet       | Four nodes, Four threshold servers, Alice Bob Chalie and Dave, Development Configuration |
     fn load_spec(&self, id: &str) -> Result<Box<dyn sc_service::ChainSpec>, String> {
         Ok(match id {
             "" | "dev" => Box::new(chain_spec::dev::development_config()),
@@ -88,6 +89,7 @@ impl SubstrateCli for Cli {
             },
             "testnet-local" => Box::new(chain_spec::testnet::testnet_local_config()),
             "testnet" => Box::new(chain_spec::testnet::testnet_config()),
+            "tdx-testnet" => Box::new(chain_spec::tdx_testnet::development_config()),
             path => {
                 Box::new(chain_spec::ChainSpec::from_json_file(std::path::PathBuf::from(path))?)
             },