diff --git a/Cargo.lock b/Cargo.lock
index 9acd166d20..4736c261e7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3552,6 +3552,7 @@ name = "kdf_walletconnect"
 version = "0.1.0"
 dependencies = [
  "async-trait",
+ "base64 0.21.7",
  "chrono",
  "common",
  "derive_more",
diff --git a/mm2src/coins_activation/src/tendermint_with_assets_activation.rs b/mm2src/coins_activation/src/tendermint_with_assets_activation.rs
index 554b7bc877..c15e6cad0d 100644
--- a/mm2src/coins_activation/src/tendermint_with_assets_activation.rs
+++ b/mm2src/coins_activation/src/tendermint_with_assets_activation.rs
@@ -251,7 +251,7 @@ async fn get_walletconnect_pubkey(
         })?;
 
     let pubkey = match account.algo {
-        CosmosAccountAlgo::Secp256k1 => {
+        CosmosAccountAlgo::Secp256k1 | CosmosAccountAlgo::TendermintSecp256k1 => {
             TendermintPublicKey::from_raw_secp256k1(&account.pubkey).ok_or("Invalid secp256k1 pubkey".to_owned())
         },
     }
diff --git a/mm2src/kdf_walletconnect/Cargo.toml b/mm2src/kdf_walletconnect/Cargo.toml
index d83ce583ed..b8f5bd9a29 100644
--- a/mm2src/kdf_walletconnect/Cargo.toml
+++ b/mm2src/kdf_walletconnect/Cargo.toml
@@ -5,6 +5,7 @@ edition = "2021"
 
 [dependencies]
 async-trait = "0.1.52"
+base64 = "0.21.2"
 chrono = { version = "0.4.23", "features" = ["serde"] }
 common = { path = "../common" }
 derive_more = "0.99"
diff --git a/mm2src/kdf_walletconnect/src/chain/cosmos.rs b/mm2src/kdf_walletconnect/src/chain/cosmos.rs
index 27c742e06f..9bd944c941 100644
--- a/mm2src/kdf_walletconnect/src/chain/cosmos.rs
+++ b/mm2src/kdf_walletconnect/src/chain/cosmos.rs
@@ -1,4 +1,5 @@
 use crate::{error::WalletConnectCtxError, WalletConnectCtx};
+use base64::{engine::general_purpose, Engine};
 use chrono::Utc;
 use common::log::info;
 use futures::StreamExt;
@@ -11,9 +12,11 @@ use serde_json::Value;
 use super::WcRequestMethods;
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
-#[serde(rename_all = "lowercase")]
 pub enum CosmosAccountAlgo {
+    #[serde(rename = "lowercase")]
     Secp256k1,
+    #[serde(rename = "tendermint/PubKeySecp256k1")]
+    TendermintSecp256k1,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -54,7 +57,13 @@ where
                     .map(|n| n as u8)
             })
             .collect(),
-        _ => Err(serde::de::Error::custom("Pubkey must be an object or array")),
+        Value::String(data) => {
+            let data = general_purpose::STANDARD
+                .decode(data)
+                .map_err(|err| serde::de::Error::custom(err.to_string()))?;
+            Ok(data)
+        },
+        _ => Err(serde::de::Error::custom("Pubkey must be an string, object or array")),
     }
 }
 
diff --git a/mm2src/kdf_walletconnect/src/lib.rs b/mm2src/kdf_walletconnect/src/lib.rs
index d7f1291fa9..0ddb8900ea 100644
--- a/mm2src/kdf_walletconnect/src/lib.rs
+++ b/mm2src/kdf_walletconnect/src/lib.rs
@@ -6,7 +6,6 @@ mod metadata;
 #[allow(unused)] mod pairing;
 mod session;
 
-use async_trait::async_trait;
 use chain::{build_required_namespaces,
             cosmos::{cosmos_get_accounts_impl, CosmosAccount},
             SUPPORTED_CHAINS};