diff --git a/Cargo.lock b/Cargo.lock
index 4e871ffa4..bf6503eb1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2659,6 +2659,7 @@ dependencies = [
  "serde",
  "tangle-subxt",
  "tempfile",
+ "thiserror 2.0.11",
  "tokio",
 ]
 
diff --git a/crates/sdk/Cargo.toml b/crates/sdk/Cargo.toml
index 8a95c85ce..de7ddb274 100644
--- a/crates/sdk/Cargo.toml
+++ b/crates/sdk/Cargo.toml
@@ -25,10 +25,13 @@ gadget-stores = { workspace = true, optional = true }
 tangle-subxt = { workspace = true, optional = true }
 
 # EigenLayer and EVM
-alloy = { workspace = true, optional = true }
+alloy = { workspace = true, optional = true, features = ["full"] }
 alloy-json-abi = { workspace = true, optional = true, features = ["serde_json"] }
 eigensdk = { workspace = true, optional = true, features = ["full"] }
 
+# Error Handling
+thiserror = { workspace = true }
+
 # Serialization
 serde = { workspace = true, features = ["derive"] }
 
@@ -89,6 +92,7 @@ tangle = [
 	"gadget-macros?/tangle",
 	"gadget-testing-utils?/tangle",
 	"gadget-utils/tangle",
+	"gadget-event-listeners/tangle"
 ]
 
 evm = [
@@ -97,6 +101,7 @@ evm = [
 	"alloy",
 	"alloy-json-abi",
 	"gadget-macros?/evm",
+	"gadget-event-listeners/evm"
 ]
 
 eigenlayer = [
@@ -107,6 +112,7 @@ eigenlayer = [
 	"alloy",
 	"alloy-json-abi",
 	"eigensdk",
+	"gadget-event-listeners/evm"
 ]
 
 testing = [
diff --git a/crates/sdk/src/error.rs b/crates/sdk/src/error.rs
new file mode 100644
index 000000000..7be092c97
--- /dev/null
+++ b/crates/sdk/src/error.rs
@@ -0,0 +1,75 @@
+use super::{config, keystore};
+
+#[cfg(any(feature = "evm", feature = "eigenlayer", feature = "tangle"))]
+use super::event_listeners;
+
+#[derive(thiserror::Error, Debug)]
+pub enum Error {
+    // General Errors
+    #[error("Config error: {0}")]
+    Config(#[from] config::Error),
+    #[error("Keystore error: {0}")]
+    Keystore(#[from] keystore::Error),
+    #[error("Other Error: {0}")]
+    Other(String),
+
+    // Specific to Tangle
+    #[cfg(feature = "tangle")]
+    #[error("Event listener error: {0}")]
+    TangleEvent(
+        #[from]
+        event_listeners::core::Error<event_listeners::tangle::error::TangleEventListenerError>,
+    ),
+    #[cfg(feature = "tangle")]
+    #[error("Tangle Subxt error: {0}")]
+    TangleSubxt(#[from] tangle_subxt::subxt::Error),
+
+    // EVM and EigenLayer
+    #[cfg(any(feature = "evm", feature = "eigenlayer"))]
+    #[error("Event listener error: {0}")]
+    EvmEvent(#[from] event_listeners::core::Error<event_listeners::evm::error::Error>),
+    #[cfg(any(feature = "evm", feature = "eigenlayer"))]
+    #[error("EVM error: {0}")]
+    Alloy(#[from] AlloyError),
+    #[cfg(feature = "eigenlayer")]
+    #[error("Eigenlayer error: {0}")]
+    Eigenlayer(#[from] eigensdk::types::avs::SignatureVerificationError),
+
+    // Specific to Networking
+    #[cfg(feature = "networking")]
+    #[error("Networking error: {0}")]
+    Networking(#[from] gadget_networking::Error),
+}
+
+#[cfg(any(feature = "evm", feature = "eigenlayer"))]
+#[derive(thiserror::Error, Debug)]
+pub enum AlloyError {
+    #[error("Alloy signer error: {0}")]
+    Signer(#[from] alloy::signers::Error),
+    #[error("Alloy contract error: {0}")]
+    Contract(#[from] alloy::contract::Error),
+    #[error("Alloy transaction error: {0}")]
+    Conversion(#[from] alloy::rpc::types::transaction::ConversionError),
+    #[error("Alloy local signer error: {0}")]
+    LocalSigner(#[from] alloy::signers::local::LocalSignerError),
+}
+
+#[cfg(any(feature = "evm", feature = "eigenlayer"))]
+macro_rules! implement_from_alloy_error {
+    ($($path:ident)::+, $variant:ident) => {
+        impl From<alloy::$($path)::+> for Error {
+            fn from(value: alloy::$($path)::+) -> Self {
+                Error::Alloy(AlloyError::$variant(value))
+            }
+        }
+    };
+}
+
+#[cfg(any(feature = "evm", feature = "eigenlayer"))]
+implement_from_alloy_error!(signers::Error, Signer);
+#[cfg(any(feature = "evm", feature = "eigenlayer"))]
+implement_from_alloy_error!(contract::Error, Contract);
+#[cfg(any(feature = "evm", feature = "eigenlayer"))]
+implement_from_alloy_error!(rpc::types::transaction::ConversionError, Conversion);
+#[cfg(any(feature = "evm", feature = "eigenlayer"))]
+implement_from_alloy_error!(signers::local::LocalSignerError, LocalSigner);
diff --git a/crates/sdk/src/lib.rs b/crates/sdk/src/lib.rs
index 6c5ae24e0..914f95186 100644
--- a/crates/sdk/src/lib.rs
+++ b/crates/sdk/src/lib.rs
@@ -66,5 +66,9 @@ pub use gadget_std as std;
 pub use serde;
 pub use tokio;
 
+/// Error
+pub mod error;
+pub use error::Error;
+
 #[cfg(feature = "local-store")]
 pub use gadget_stores as stores;