diff --git a/Cargo.lock b/Cargo.lock
index a751665..c170fe0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1230,6 +1230,8 @@ version = "0.0.0"
 dependencies = [
  "anyhow",
  "bech32 0.11.0",
+ "cardano-connect",
+ "cardano-connect-blockfrost",
  "cardano-tx-builder",
  "clap",
  "cryptoxide 0.5.1",
diff --git a/crates/cardano-tx-builder/src/datum.rs b/crates/cardano-tx-builder/src/datum.rs
index dc6e355..6def012 100644
--- a/crates/cardano-tx-builder/src/datum.rs
+++ b/crates/cardano-tx-builder/src/datum.rs
@@ -5,6 +5,7 @@ use super::plutus_data::PlutusData;
 
 /// Datum
 /// As it may appear on a utxo
+#[derive(Debug)]
 pub enum Datum {
     None,
     Hash([u8; 32]), // Check this
diff --git a/crates/cardano-tx-builder/src/output.rs b/crates/cardano-tx-builder/src/output.rs
index c14b7a7..d38d161 100644
--- a/crates/cardano-tx-builder/src/output.rs
+++ b/crates/cardano-tx-builder/src/output.rs
@@ -6,6 +6,7 @@ use super::script::Script;
 use super::value::Value;
 
 /// Output
+#[derive(Debug)]
 pub struct Output {
     pub address: Address,
     pub value: Value,
diff --git a/crates/cardano-tx-builder/src/script.rs b/crates/cardano-tx-builder/src/script.rs
index f99fbf1..ec12ead 100644
--- a/crates/cardano-tx-builder/src/script.rs
+++ b/crates/cardano-tx-builder/src/script.rs
@@ -5,6 +5,7 @@ use pallas_primitives::PlutusScript;
 /// Script.
 /// There is no support for native scripts,
 /// and we only really care about V3.
+#[derive(Debug)]
 pub enum Script {
     V1(Vec<u8>),
     V2(Vec<u8>),
diff --git a/crates/cardano-tx-builder/src/utxo.rs b/crates/cardano-tx-builder/src/utxo.rs
index 7a6f6b5..0119e18 100644
--- a/crates/cardano-tx-builder/src/utxo.rs
+++ b/crates/cardano-tx-builder/src/utxo.rs
@@ -3,6 +3,7 @@ use super::output::Output;
 
 /// Utxo
 /// Aka resolved input.
+#[derive(Debug)]
 pub struct Utxo {
     pub input: Input,
     pub output: Output,
diff --git a/crates/konduit-cli/Cargo.toml b/crates/konduit-cli/Cargo.toml
index 0967bb1..bf8d0b6 100644
--- a/crates/konduit-cli/Cargo.toml
+++ b/crates/konduit-cli/Cargo.toml
@@ -27,4 +27,6 @@ serde = { version = "1.0.213", features = ["derive"] }
 serde_json = "1.0.138"
 tokio = { version = "1.47.1", features = ["full"] }
 cardano-tx-builder = { path = "../cardano-tx-builder" }
+cardano-connect = { path = "../cardano-connect" }
+cardano-connect-blockfrost = { path = "../cardano-connect-blockfrost" }
 minicbor = "2.1.1"
diff --git a/crates/konduit-cli/src/cardano_connect.rs b/crates/konduit-cli/src/cardano_connect.rs
new file mode 100644
index 0000000..8da0b90
--- /dev/null
+++ b/crates/konduit-cli/src/cardano_connect.rs
@@ -0,0 +1,21 @@
+use std::collections::HashMap;
+
+pub use cardano_connect::CardanoConnect;
+use cardano_connect_blockfrost::{Blockfrost, Config};
+
+const PREFIX: &str = "cardano_";
+
+pub fn from_env(env: &HashMap<String, String>) -> impl CardanoConnect {
+    let cardano_env: HashMap<String, String> = env
+        .iter()
+        .filter_map(|(k, v)| k.strip_prefix(PREFIX).map(|k| (k.to_string(), v.clone())))
+        .collect();
+    match env.get("cardano") {
+        None => panic!("Expect cardano connection details in env"),
+        Some(s) if s == "blockfrost" => {
+            let config = Config::from_env(&cardano_env);
+            Blockfrost::new(config.project_id)
+        }
+        Some(_s) => panic!("Unkown cardano connection"),
+    }
+}
diff --git a/crates/konduit-cli/src/cmd.rs b/crates/konduit-cli/src/cmd.rs
index 5e96e7f..322b962 100644
--- a/crates/konduit-cli/src/cmd.rs
+++ b/crates/konduit-cli/src/cmd.rs
@@ -1,7 +1,7 @@
 use clap::Subcommand;
 
 mod cardano;
-mod data;
+// mod data;
 // mod tx;
 mod wallet;
 
@@ -10,8 +10,8 @@ pub enum Cmd {
     /// Txs
     // #[command(subcommand)]
     // Tx(tx::Cmd),
-    #[command(subcommand)]
-    Data(data::Cmd),
+    // #[command(subcommand)]
+    // Data(data::Cmd),
     #[command(subcommand)]
     Cardano(cardano::Cmd),
     #[command(subcommand)]
@@ -21,7 +21,7 @@ pub enum Cmd {
 pub fn handle(cmd: Cmd) {
     match cmd {
         // Cmd::Tx(inner) => tx::handle(inner),
-        Cmd::Data(inner) => data::handle(inner),
+        // Cmd::Data(inner) => data::handle(inner),
         Cmd::Cardano(inner) => cardano::handle(inner),
         Cmd::Wallet(inner) => wallet::handle(inner),
     };
diff --git a/crates/konduit-cli/src/cmd/cardano.rs b/crates/konduit-cli/src/cmd/cardano.rs
index bcbece8..54e78e8 100644
--- a/crates/konduit-cli/src/cmd/cardano.rs
+++ b/crates/konduit-cli/src/cmd/cardano.rs
@@ -1,7 +1,8 @@
 use clap::Subcommand;
 use tokio::runtime::Runtime;
 
-use crate::cardano::{cardano::Cardano, from_env};
+use cardano_connect::CardanoConnect;
+use crate::cardano_connect;
 use crate::env::get_env;
 
 #[derive(Subcommand)]
@@ -15,7 +16,7 @@ pub fn handle(cmd: Cmd) {
     match cmd {
         Cmd::Health => {
             let env = get_env();
-            let conn = from_env(&env);
+            let conn = cardano_connect::from_env(&env);
             let rt = Runtime::new().expect("Failed to create Tokio runtime");
             rt.block_on(async {
                 println!("{:?}", conn.health().await);
diff --git a/crates/konduit-cli/src/cmd/wallet.rs b/crates/konduit-cli/src/cmd/wallet.rs
index 3d95419..9d33a47 100644
--- a/crates/konduit-cli/src/cmd/wallet.rs
+++ b/crates/konduit-cli/src/cmd/wallet.rs
@@ -1,13 +1,12 @@
 use clap::Subcommand;
-use pallas_addresses::{
-    Address, Network, ShelleyAddress, ShelleyDelegationPart, ShelleyPaymentPart,
-};
 use tokio::runtime::Runtime;
 
-use crate::cardano;
-use crate::cardano::cardano::Cardano;
+use cardano_connect::CardanoConnect;
+use cardano_tx_builder::{Address, Network};
+use crate::cardano_connect;
+
 use crate::env::get_env;
-use crate::wallet::{from_env, generate, Wallet};
+use crate::wallet::{from_env, generate};
 
 #[derive(Subcommand)]
 /// Wallet Api
@@ -23,36 +22,28 @@ pub enum Cmd {
 pub fn handle(cmd: Cmd) {
     match cmd {
         Cmd::Gen => {
-            println!("KONDUIT_WALLET_KEY={}", hex::encode(generate()));
+            println!("KONDUIT_WALLET_SKEY={}", hex::encode(generate()));
         }
         Cmd::Show => {
             let env = get_env();
             let w = from_env(&env);
-            let payment_cred = ShelleyPaymentPart::Key(w.key_hash());
-            let stake_cred = ShelleyDelegationPart::Null;
-            let addr_main =
-                ShelleyAddress::new(Network::Mainnet, payment_cred.clone(), stake_cred.clone());
-            let addr_test =
-                ShelleyAddress::new(Network::Testnet, payment_cred.clone(), stake_cred.clone());
-            println!("VKEY={}", hex::encode(w.vkey()));
-            println!("PAYMENT_CRED={:?}", payment_cred.to_bech32());
+            let cred = w.credential();
+            let addr_main = Address::new(Network::Mainnet, cred.clone(), None);
+            let addr_test = Address::new(Network::Testnet, cred.clone(), None);
+            println!("VKEY={}", hex::encode(w.skey.vkey().0));
+            // println!("PAYMENT_CRED={:?}", cred.into().to_bech32());
             println!("ADDRESS_MAINNET={:?}", addr_main.to_bech32());
             println!("ADDRESS_TESTNET={:?}", addr_test.to_bech32());
         }
         Cmd::Utxos => {
             let env = get_env();
             let w = from_env(&env);
-            let payment_cred = w.payment_credential();
-            let stake_cred = ShelleyDelegationPart::Null;
-            let conn = cardano::from_env(&env);
+            let w = from_env(&env);
+            let cred = w.credential();
+            let conn = cardano_connect::from_env(&env);
             let rt = Runtime::new().expect("Failed to create Tokio runtime");
             rt.block_on(async {
-                let addr = ShelleyAddress::new(
-                    conn.network_id(),
-                    payment_cred.clone(),
-                    stake_cred.clone(),
-                );
-                println!("{:?}", conn.utxos_at(&w.payment_credential()).await);
+                println!("{:?}", conn.utxos_at(&w.credential(), &None).await);
             })
         }
     };
diff --git a/crates/konduit-cli/src/env.rs b/crates/konduit-cli/src/env.rs
index 2cc355b..7899c19 100644
--- a/crates/konduit-cli/src/env.rs
+++ b/crates/konduit-cli/src/env.rs
@@ -14,4 +14,3 @@ pub fn get_env() -> HashMap<String, String> {
     }
     env
 }
-
diff --git a/crates/konduit-cli/src/lib.rs b/crates/konduit-cli/src/lib.rs
index d91429e..81b5634 100644
--- a/crates/konduit-cli/src/lib.rs
+++ b/crates/konduit-cli/src/lib.rs
@@ -1,8 +1,6 @@
-pub mod cardano;
+pub mod cardano_connect;
 pub mod cmd;
-pub mod data;
 pub mod env;
 pub mod tx;
 pub mod utils;
 pub mod wallet;
-pub mod cardano_types;
diff --git a/crates/konduit-cli/src/tx.rs b/crates/konduit-cli/src/tx.rs
index 294cb48..ef5f2d2 100644
--- a/crates/konduit-cli/src/tx.rs
+++ b/crates/konduit-cli/src/tx.rs
@@ -1,15 +1,16 @@
 use std::collections::HashMap;
 
-use crate::cardano;
-use crate::cardano::cardano::Cardano;
+use ::cardano_connect::CardanoConnect;
+
+use crate::cardano_connect;
 use crate::wallet;
 
 pub mod context;
-pub mod send;
+// pub mod send;
 
-pub fn from_env(env: &HashMap<String, String>) -> context::TxContext<impl Cardano> {
+pub fn from_env(env: &HashMap<String, String>) -> context::TxContext<impl CardanoConnect> {
     context::TxContext {
-        cardano: cardano::from_env(env),
+        cardano: cardano_connect::from_env(env),
         wallet: wallet::from_env(env),
     }
 }
diff --git a/crates/konduit-cli/src/tx/context.rs b/crates/konduit-cli/src/tx/context.rs
index 95add0b..d0d5a6c 100644
--- a/crates/konduit-cli/src/tx/context.rs
+++ b/crates/konduit-cli/src/tx/context.rs
@@ -1,31 +1,30 @@
-use crate::{cardano::cardano::Cardano, wallet::Wallet};
 use anyhow::Result;
-use pallas_addresses::{ShelleyAddress, ShelleyDelegationPart};
-use uplc::tx::ResolvedInput;
+use cardano_connect::CardanoConnect;
+use cardano_tx_builder::{Address, BuildParameters, Utxo};
 
-use super::plutus::BuildParams;
+use crate::wallet::Wallet;
 
 pub struct TxContext<CardanoT> {
     pub cardano: CardanoT,
     pub wallet: Wallet,
 }
 
-impl<T: Cardano> TxContext<T> {
-    pub async fn build_parameters(&self) -> BuildParams {
+impl<T: CardanoConnect> TxContext<T> {
+    pub async fn build_parameters(&self) -> BuildParameters {
         self.cardano.build_parameters().await
     }
 
-    pub async fn available_utxos(&self) -> Result<Vec<ResolvedInput>> {
+    pub async fn available_utxos(&self) -> Result<Vec<Utxo>> {
         self.cardano
-            .utxos_at(&self.wallet.payment_credential())
+            .utxos_at(&self.wallet.credential(), &None)
             .await
     }
 
-    pub fn wallet_address(&self) -> ShelleyAddress {
-        ShelleyAddress::new(
-            self.cardano.network_id(),
-            self.wallet.payment_credential(),
-            ShelleyDelegationPart::Null,
+    pub fn wallet_address(&self) -> Address {
+        Address::new(
+            self.cardano.network(),
+            self.wallet.credential(),
+            None,
         )
     }
 }
diff --git a/crates/konduit-cli/src/tx/send.rs b/crates/konduit-cli/src/tx/send.rs
index 8daa4eb..18c92ea 100644
--- a/crates/konduit-cli/src/tx/send.rs
+++ b/crates/konduit-cli/src/tx/send.rs
@@ -1,21 +1,13 @@
 use anyhow::Result;
 use minicbor::encode;
-use pallas_addresses::{Address, ShelleyAddress, ShelleyDelegationPart};
-use pallas_primitives::{
-    conway::{
-        PostAlonzoTransactionOutput, TransactionBody, TransactionInput, TransactionOutput, Tx,
-        Value, WitnessSet,
-    },
-    Coin, Nullable, Set,
-};
 
-use crate::{cardano::cardano::Cardano, wallet::Wallet};
+use crate::{
+    , wallet::Wallet
+};
 
 use super::{
     context::TxContext,
     plutus::{
-        build_transaction, default_transaction_body, default_witness_set, expect_post_alonzo,
-        from_network, into_outputs, value_subtract_lovelace, BuildParams,
     },
 };
 
diff --git a/crates/konduit-cli/src/utils.rs b/crates/konduit-cli/src/utils.rs
index 51a289b..e2946ef 100644
--- a/crates/konduit-cli/src/utils.rs
+++ b/crates/konduit-cli/src/utils.rs
@@ -1,7 +1,8 @@
-use anyhow::{anyhow, Result};
+use anyhow::{Result, anyhow};
 
 pub fn v2a<T, const N: usize>(v: Vec<T>) -> Result<[T; N]> {
-    <[T;N]>::try_from(v).map_err(|v: Vec<T>| anyhow!("Expected a Vec of length {}, but got {}", N, v.len()))
+    <[T; N]>::try_from(v)
+        .map_err(|v: Vec<T>| anyhow!("Expected a Vec of length {}, but got {}", N, v.len()))
 }
 
 pub fn concat<T: Clone>(l: &[T], r: &[T]) -> Vec<T> {
diff --git a/crates/konduit-cli/src/wallet.rs b/crates/konduit-cli/src/wallet.rs
index 9bd7ffd..d590265 100644
--- a/crates/konduit-cli/src/wallet.rs
+++ b/crates/konduit-cli/src/wallet.rs
@@ -2,16 +2,19 @@ use std::collections::HashMap;
 
 use crate::utils::v2a;
 
-use cardano_tx_builder::Skey;
-use rand::{rngs::OsRng, TryRngCore};
+use cardano_tx_builder::{Credential, Skey};
+use rand::{TryRngCore, rngs::OsRng};
 
 const PREFIX: &str = "wallet_";
 
 pub struct Wallet {
-    pub skey: Skey
+    pub skey: Skey,
 }
 
 impl Wallet {
+    pub fn credential(&self) -> Credential {
+        self.skey.vkey().credential()
+    }
     // pub fn sign(&self, tx: &mut Tx) {
     //     let mut msg = Vec::new();
     //     encode(&tx.transaction_body, &mut msg).unwrap();
@@ -29,8 +32,8 @@ pub fn from_env(env: &HashMap<String, String>) -> Wallet {
         .iter()
         .filter_map(|(k, v)| k.strip_prefix(PREFIX).map(|k| (k.to_string(), v.clone())))
         .collect();
-    let raw = wallet_env.get("key").expect("wallet key not found");
-    let skey = parse_raw_skey(raw);
+    let raw = wallet_env.get("skey").expect("wallet `skey` not found");
+    let skey = Skey(parse_raw_skey(raw));
     Wallet { skey }
 }