diff --git a/ts/wasm/lib/detailed/chain_api.ts b/ts/wasm/lib/detailed/chain_api.ts
index 7f0a4450787191cb0d788da46bce7c5d97a4ceaa..3ba31799f3f6b8acaae9a2cb730c5442c641a92e 100644
--- a/ts/wasm/lib/detailed/chain_api.ts
+++ b/ts/wasm/lib/detailed/chain_api.ts
@@ -2,7 +2,7 @@ import type { IHiveChainInterface, IManabarData, ITransaction, IOnlineTransactio
 import type { MainModule, MapStringUInt16, wax_authority, wax_authorities } from "../build_wasm/wax.common";
 import { ApiAuthority, ApiWitness, type ApiAccount, type ApiManabar, type ApiTransaction, type RcAccount } from "./api";
 
-import { WaxError } from "./errors.js";
+import { WaxError, WaxChainApiError } from "./errors.js";
 import { safeWasmCall } from './util/wasm_errors.js';
 import { ONE_HUNDRED_PERCENT, WaxBaseApi } from "./base_api.js";
 import { HiveApiTypes, HiveRestApiTypes } from "./chain_api_data.js";
@@ -76,7 +76,7 @@ export class HiveChainApi extends WaxBaseApi implements IHiveChainInterface {
       if (typeof data.response === "object" && "result" in data.response)
         data.response = data.response.result;
       else
-        throw new WaxError(`Invalid response from API: ${JSON.stringify(data.response)}`);
+        throw new WaxChainApiError(`Invalid response from API: ${JSON.stringify(data.response)}`, data.response);
 
       return data;
     });
diff --git a/ts/wasm/lib/detailed/util/wasm_errors.ts b/ts/wasm/lib/detailed/util/wasm_errors.ts
index 43ae0421cba85d5be0f4e43f191770af61bfffe0..dad8ceb1c203eb9a4c306620ed3fbe50b37f3733 100644
--- a/ts/wasm/lib/detailed/util/wasm_errors.ts
+++ b/ts/wasm/lib/detailed/util/wasm_errors.ts
@@ -54,7 +54,9 @@ export const safeWasmCall = <T extends () => any>(fn: T, customExceptionHandler?
     handleWaxStdException(e, customExceptionHandler);
     //console.log("Non-typed Error during Wasm call...", e);
 
-    const error = new WaxError(`Non-typed Error during Wasm call: ${e}`);
+    const errorMsg = e && typeof e === "object" && "message" in e ? e.message : String(e);
+
+    const error = new WaxError(`Non-typed Error during Wasm call: ${errorMsg}`);
 
     if (typeof e === "object" && e && "stack" in e)
       throw Object.assign(error, { stack: e.stack });
@@ -70,7 +72,9 @@ export const safeAsyncWasmCall = async <T extends () => any>(fn: T, customExcept
     handleWaxStdException(e, customExceptionHandler);
     //console.log("Non-typed Error during Wasm call...", e); 
 
-    const error = new WaxError(`Non-typed Error during Wasm call: ${e}`);
+    const errorMsg = e && typeof e === "object" && "message" in e ? e.message : String(e);
+
+    const error = new WaxError(`Non-typed Error during Wasm call: ${errorMsg}`);
 
     if (typeof e === "object" && e && "stack" in e)
       throw Object.assign(error, { stack: e.stack });