diff --git a/defs/bitcoin/nix.json b/defs/bitcoin/nix.json
new file mode 100644
index 000000000..28c1a18fa
--- /dev/null
+++ b/defs/bitcoin/nix.json
@@ -0,0 +1,41 @@
+{
+  "coin_name": "Nix",
+  "coin_shortcut": "NIX",
+  "coin_label": "Nix",
+  "website": "https://nixplatform.io",
+  "github": "https://github.com/nixplatform/nixcore",
+  "maintainer": "mattt21 <matt@nixplatform.io>",
+  "curve_name": "secp256k1",
+  "address_type": 38,
+  "address_type_p2sh": 53,
+  "maxfee_kb": 40000000,
+  "minfee_kb": 0,
+  "signed_message_header": "NIX Signed Message:\n",
+  "hash_genesis_block": "dd28ad86def767c3cfc34267a950d871fc7462bc57ea4a929fc3596d9b598e41",
+  "xprv_magic": 76066276,
+  "xpub_magic": 76067358,
+  "xpub_magic_segwit_p2sh": 77429938,
+  "xpub_magic_segwit_native": null,
+  "bech32_prefix": "nix",
+  "cashaddr_prefix": null,
+  "slip44": 400,
+  "segwit": true,
+  "decred": false,
+  "fork_id": null,
+  "force_bip143": false,
+  "bip115": false,
+  "default_fee_b": {
+    "Normal": 1000
+  },
+  "dust_limit": 54600,
+  "blocktime_seconds": 120,
+  "uri_prefix": "nix",
+  "min_address_length": 27,
+  "max_address_length": 34,
+  "bitcore": [
+    "https://blockchain.nixplatform.io"
+  ],
+  "blockbook": [
+  ],
+  "cooldown": 100
+}
diff --git a/defs/bitcoin/nix.png b/defs/bitcoin/nix.png
new file mode 100644
index 000000000..132c4062b
Binary files /dev/null and b/defs/bitcoin/nix.png differ