diff --git a/public/logos/okp4.svg b/public/logos/okp4.svg
new file mode 100644
index 00000000..e57e3e71
--- /dev/null
+++ b/public/logos/okp4.svg
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg id="uuid-7c4dac6b-fee9-4a31-84a7-3dedb7527f8e" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 313.61 231.9"><polygon points="114.88 231.9 0 115.49 116.11 .92 143.14 28.26 127.78 43.31 116.11 31.33 30.41 115.8 114.88 201.5 125.93 190.74 140.99 206.1 114.88 231.9" style="fill:#181c49;"/><polygon points="199.35 160.64 184.29 145.29 212.86 117.03 183.37 86.93 198.42 71.87 243.27 117.33 199.35 160.64" style="fill:#cecece;"/><path d="M197.5,230.68L82.93,114.57,170.17,28.57h0L199.04,0l114.57,116.41-116.11,114.26ZM113.34,114.88l84.47,85.7,85.39-84.47L198.73,30.41,113.34,114.88h0Z" style="fill:#181c49;"/></svg>
\ No newline at end of file
diff --git a/src/chains/testnet/okp4.json b/src/chains/testnet/okp4.json
new file mode 100644
index 00000000..a47ee55d
--- /dev/null
+++ b/src/chains/testnet/okp4.json
@@ -0,0 +1,19 @@
+{
+    "chain_name": "OKP4 testnet",
+    "api": ["https://api.testnet.okp4.network"],
+    "rpc": ["https://api.testnet.okp4.network:443/rpc"],
+    "snapshot_provider": "",
+    "sdk_version": "0.46.2",
+    "coin_type": "118",
+    "min_tx_fee": "800",
+    "addr_prefix": "okp4",
+    "logo": "/logos/okp4.png",
+    "assets": [
+      {
+        "base": "uknow",
+        "symbol": "KNOW",
+        "exponent": "6",
+        "logo": "/logos/okp4.png"
+      }
+    ]
+  }