diff --git a/Cargo.lock b/Cargo.lock
index bc93b63..642ad6a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1535,16 +1535,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "bincode2"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f49f6183038e081170ebbbadee6678966c7d54728938a3e7de7f4e780770318f"
-dependencies = [
- "byteorder",
- "serde",
-]
-
 [[package]]
 name = "bindgen"
 version = "0.69.5"
@@ -1718,7 +1708,7 @@ checksum = "4f8754ff7a709cf0643f82093fff582192a36afe3b075cde8e752ad9e39d35ed"
 dependencies = [
  "cargo_metadata",
  "fs2",
- "gadget-blueprint-proc-macro-core",
+ "gadget-blueprint-proc-macro-core 0.1.5",
  "rustdoc-types",
  "serde",
  "serde_json",
@@ -4174,11 +4164,11 @@ dependencies = [
 
 [[package]]
 name = "gadget-blueprint-proc-macro"
-version = "0.3.1"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9279fa5ac3579da5e1c5467c395aae4c910cc63a702fcae097d529687398a4b7"
+checksum = "6f6acfb3136e908bfa36a0e68d5556298aec5dd743a4fd6f2190fccf7125c5dd"
 dependencies = [
- "gadget-blueprint-proc-macro-core",
+ "gadget-blueprint-proc-macro-core 0.2.0",
  "indexmap 2.6.0",
  "itertools 0.13.0",
  "proc-macro2",
@@ -4199,10 +4189,32 @@ dependencies = [
 ]
 
 [[package]]
-name = "gadget-context-derive"
+name = "gadget-blueprint-proc-macro-core"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c2f15fa82798ae66fec9bea17791a5f37f200ed9803158b08180fd6ba85737c1"
+checksum = "926d5a5d8c7706be67b50fee8e57d9e9a9c8e4b5430e6ed464c9943128b006bc"
+dependencies = [
+ "cid",
+ "ethereum-types",
+ "serde",
+]
+
+[[package]]
+name = "gadget-blueprint-serde"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c70fbc91721439daf6b33678e83ebed8b2f48fe73a4ab20a050f91040de7764"
+dependencies = [
+ "paste",
+ "serde",
+ "tangle-subxt",
+]
+
+[[package]]
+name = "gadget-context-derive"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41828995faf594c8d7c2e1d825b542aa3500cbd6ad529055bd11c60603db0566"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4234,11 +4246,12 @@ dependencies = [
 
 [[package]]
 name = "gadget-sdk"
-version = "0.4.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "155e6e50f8d4651766c2d597132b421cc19f23fddcde752f8014363b98140de0"
+checksum = "31f104e44f6946ae10ae4c0b87c4a81d0d5c6cc2e59b50fecc5231a1f0c4ea3a"
 dependencies = [
  "alloy-contract",
+ "alloy-json-abi",
  "alloy-network",
  "alloy-primitives 0.7.7",
  "alloy-provider",
@@ -4256,9 +4269,9 @@ dependencies = [
  "auto_impl",
  "backon",
  "bincode",
- "bincode2",
  "bollard",
  "clap",
+ "color-eyre",
  "dashmap 6.1.0",
  "ed25519-zebra 4.0.3",
  "eigensdk",
@@ -4266,7 +4279,8 @@ dependencies = [
  "failure",
  "futures",
  "gadget-blueprint-proc-macro",
- "gadget-blueprint-proc-macro-core",
+ "gadget-blueprint-proc-macro-core 0.2.0",
+ "gadget-blueprint-serde",
  "gadget-context-derive",
  "gadget-io",
  "getrandom",
diff --git a/Cargo.toml b/Cargo.toml
index 9f6397c..ffce377 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ tokio = { version = "1.41", default-features = false, features = ["full"] }
 serde = { version = "1", features = ["derive"] }
 
 [dependencies.gadget-sdk]
-version = "0.4.0"
+version = "0.5.1"
 features = ["getrandom"]
 
 [dependencies.libp2p]