diff --git a/coins/21coin.json b/coins/21coin.json
new file mode 100644
index 0000000..8aa9ea5
--- /dev/null
+++ b/coins/21coin.json
@@ -0,0 +1,5 @@
+{
+    "name": "21coin",
+    "symbol": "21",
+    "algorithm": "sha256"
+}