diff --git a/Cargo.lock b/Cargo.lock
index b93ce32..da4b307 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1086,6 +1086,19 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "blockchain_api"
+version = "0.1.0"
+source = "git+https://github.com/WalletConnect/WalletConnectRust.git?tag=v0.29.2#593029f0f94c500fdd0390492cf0e00f11a67fd2"
+dependencies = [
+ "relay_rpc",
+ "reqwest",
+ "serde",
+ "tokio",
+ "tracing",
+ "url",
+]
+
 [[package]]
 name = "brotli"
 version = "3.4.0"
@@ -2531,6 +2544,7 @@ dependencies = [
  "aws-sdk-s3",
  "axum",
  "axum-macros",
+ "blockchain_api",
  "bs58",
  "build-info",
  "build-info-build",
@@ -3488,7 +3502,7 @@ checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 [[package]]
 name = "relay_rpc"
 version = "0.1.0"
-source = "git+https://github.com/WalletConnect/WalletConnectRust.git?tag=v0.28.0#f7ff25cae3dec381e5c391a98532dabffd5299d8"
+source = "git+https://github.com/WalletConnect/WalletConnectRust.git?tag=v0.29.2#593029f0f94c500fdd0390492cf0e00f11a67fd2"
 dependencies = [
  "alloy-json-abi",
  "alloy-json-rpc",
diff --git a/Cargo.toml b/Cargo.toml
index 5c16a72..8c60295 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,13 +6,19 @@ authors = [
     "Derek Rein <derek@walletconnect.com>",
     "Szymon Rząd <szymon@walletconnect.com>",
     "Xavier Basty-Kjellberg <xavier@walletconnect.com>",
-    "Maciej Rak <raku@walletconnect.com>"
+    "Maciej Rak <raku@walletconnect.com>",
 ]
 build = "build.rs"
 
 [dependencies]
-wc = { git = "https://github.com/WalletConnect/utils-rs.git", tag = "v0.7.0", features = ["geoip", "geoblock"] }
-relay_rpc = { git = "https://github.com/WalletConnect/WalletConnectRust.git", tag = "v0.28.0", features = ["cacao"] }
+wc = { git = "https://github.com/WalletConnect/utils-rs.git", tag = "v0.7.0", features = [
+    "geoip",
+    "geoblock",
+] }
+relay_rpc = { git = "https://github.com/WalletConnect/WalletConnectRust.git", tag = "v0.29.2", features = [
+    "cacao",
+] }
+blockchain_api = { git = "https://github.com/WalletConnect/WalletConnectRust.git", tag = "v0.29.2" }
 
 aws-config = "0.56"
 aws-sdk-s3 = "0.31"
@@ -20,13 +26,28 @@ aws-sdk-s3 = "0.31"
 axum = "0.6.1"
 axum-macros = "0.3.0"
 tokio = { version = "1.0", features = ["full"] }
-tower = { version = "0.4", features = ["util", "timeout", "load-shed", "limit"] }
-tower-http = { version = "0.3.0", features = ["add-extension", "auth", "compression-full", "trace", "cors", "request-id", "util"] }
+tower = { version = "0.4", features = [
+    "util",
+    "timeout",
+    "load-shed",
+    "limit",
+] }
+tower-http = { version = "0.3.0", features = [
+    "add-extension",
+    "auth",
+    "compression-full",
+    "trace",
+    "cors",
+    "request-id",
+    "util",
+] }
 hyper = "0.14"
 http = "0.2.8"
 
 # Database
-wither = { git = "https://github.com/WalletConnect/wither.git", rev = "6a70e74", features = ["bson-chrono-0_4"] }
+wither = { git = "https://github.com/WalletConnect/wither.git", rev = "6a70e74", features = [
+    "bson-chrono-0_4",
+] }
 wither_derive = { git = "https://github.com/WalletConnect/wither.git", rev = "6a70e74" }
 
 # Seralisation
@@ -48,7 +69,10 @@ opentelemetry-otlp = "0.11"
 
 # Logging
 tracing = "0.1"
-tracing-subscriber = { version = "0.3", features = ["env-filter", "parking_lot"] }
+tracing-subscriber = { version = "0.3", features = [
+    "env-filter",
+    "parking_lot",
+] }
 tracing-appender = "0.2"
 tracing-opentelemetry = "0.18"
 atty = "0.2"
@@ -71,3 +95,8 @@ hex = "0.4.3"
 
 [build-dependencies]
 build-info-build = "0.0.29"
+
+# [patch.'https://github.com/WalletConnect/WalletConnectRust.git']
+# relay_rpc = { path = "../WalletConnectRust/relay_rpc" }
+# relay_client = { path = "../WalletConnectRust/relay_client" }
+# blockchain_api = { path = "../WalletConnectRust/blockchain_api" }
diff --git a/src/config.rs b/src/config.rs
index 168f893..b1d0820 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -9,6 +9,9 @@ pub struct Configuration {
     pub database_url: String,
     pub project_id: ProjectId,
 
+    #[serde(default = "default_blockchain_api_endpoint")]
+    pub blockchain_api_endpoint: Option<String>,
+
     // Telemetry
     pub telemetry_enabled: Option<bool>,
     pub telemetry_grpc_url: Option<String>,
@@ -43,3 +46,7 @@ fn default_port() -> u16 {
 fn default_log_level() -> String {
     "WARN".to_string()
 }
+
+fn default_blockchain_api_endpoint() -> Option<String> {
+    Some("https://rpc.walletconnect.com".to_string())
+}
diff --git a/src/error.rs b/src/error.rs
index 87499e0..7cb8bc3 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -42,6 +42,9 @@ pub enum Error {
 
     #[error(transparent)]
     Cacao(#[from] CacaoError),
+
+    #[error("Blockchain API error: {0}")]
+    BlockchainApi(blockchain_api::Error),
 }
 
 impl IntoResponse for Error {
diff --git a/src/handlers/identity/register.rs b/src/handlers/identity/register.rs
index 2e97c9a..e146789 100644
--- a/src/handlers/identity/register.rs
+++ b/src/handlers/identity/register.rs
@@ -38,14 +38,17 @@ pub async fn handler(
         payload.cacao
     );
 
-    cacao.verify(&state.provider).await.map_err(|error| {
-        increment_counter!(state.metrics, invalid_identity_register_cacao);
-        info!(
-            "Failure - Register identity with cacao: {:?}, error: {:?}",
-            payload.cacao, error
-        );
-        error
-    })?;
+    cacao
+        .verify(state.provider.as_ref())
+        .await
+        .map_err(|error| {
+            increment_counter!(state.metrics, invalid_identity_register_cacao);
+            info!(
+                "Failure - Register identity with cacao: {:?}, error: {:?}",
+                payload.cacao, error
+            );
+            error
+        })?;
 
     let identity_key = cacao.p.identity_key()?;
     let account = cacao.p.caip_10_address()?;
diff --git a/src/lib.rs b/src/lib.rs
index ca1617b..b3872b0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,14 +1,14 @@
 use {
-    crate::{config::Configuration, log::prelude::*, state::AppState},
+    crate::{config::Configuration, error::Error, log::prelude::*, state::AppState},
     aws_config::meta::region::RegionProviderChain,
     aws_sdk_s3::{config::Region, Client as S3Client},
     axum::{
         routing::{get, post},
         Router,
     },
+    blockchain_api::BlockchainApiProvider,
     http::{HeaderValue, Method},
     opentelemetry::{sdk::Resource, KeyValue},
-    relay_rpc::auth::cacao::signature::eip1271::blockchain_api::BlockchainApiProvider,
     std::{net::SocketAddr, sync::Arc},
     stores::keys::MongoPersistentStorage,
     tokio::{select, sync::broadcast},
@@ -46,7 +46,20 @@ pub async fn bootstrap(
     let s3_client = get_s3_client(&config).await;
     let geoip_resolver = get_geoip_resolver(&config, &s3_client).await;
 
-    let provider = BlockchainApiProvider::new(config.project_id.clone());
+    let provider = if let Some(blockchain_api_endpoint) = &config.blockchain_api_endpoint {
+        Some(
+            BlockchainApiProvider::new(
+                config.project_id.clone(),
+                blockchain_api_endpoint
+                    .parse()
+                    .expect("Error parsing blockchain_api_endpoint"),
+            )
+            .await
+            .map_err(Error::BlockchainApi)?,
+        )
+    } else {
+        None
+    };
     let mut state = AppState::new(config, keys_persistent_storage, provider)?;
 
     if let Some(prometheus_port) = state.config.telemetry_prometheus_port {
diff --git a/src/state.rs b/src/state.rs
index ab33a9a..23faf50 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -1,7 +1,7 @@
 use {
     crate::{config::Configuration, metrics::Metrics, stores::keys::KeysPersistentStorageArc},
+    blockchain_api::BlockchainApiProvider,
     build_info::BuildInfo,
-    relay_rpc::auth::cacao::signature::eip1271::blockchain_api::BlockchainApiProvider,
 };
 
 #[derive(Clone)]
@@ -10,7 +10,7 @@ pub struct AppState {
     pub build_info: BuildInfo,
     pub metrics: Option<Metrics>,
     pub keys_persitent_storage: KeysPersistentStorageArc,
-    pub provider: BlockchainApiProvider,
+    pub provider: Option<BlockchainApiProvider>,
 }
 
 build_info::build_info!(fn build_info);
@@ -19,7 +19,7 @@ impl AppState {
     pub fn new(
         config: Configuration,
         keys_persitent_storage: KeysPersistentStorageArc,
-        provider: BlockchainApiProvider,
+        provider: Option<BlockchainApiProvider>,
     ) -> crate::error::Result<AppState> {
         let build_info: &BuildInfo = build_info();