Add Coinranking

Cryptocurrency/CoinMarketCap.md

@@ -68,7 +68,7 @@ X-CMC_PRO_API_KEY: {{token}}
 ```
 ## __Regex__
 ```
-[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}
+[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}
 ```
 
 ## __Example API key__

Cryptocurrency/Coinranking.md

@@ -0,0 +1,75 @@
+# [Coinranking](https://developers.coinranking.com/api/documentation)
+
+## __Description__
+Live Cryptocurrency data
+
+## __Example Request__
+* Curl
+```
+curl "https://api.coinranking.com/v2/exchanges" -H "x-access-token: {{token}}"
+```
+
+* Raw
+```
+GET /v2/exchanges HTTP/1.1
+Host: api.coinranking.com
+x-access-token: {{token}}
+```
+
+## __Response__
+* Success
+```
+{
+    "status": "success",
+    "data": {
+        "stats": {
+            "24hVolume": "6554685985.623574",
+            "total": 198
+        },
+        "exchanges": [
+            {
+                "coinrankingUrl": "https://coinranking.com/exchange/-zdvbieRdZ+binance",
+                "uuid": "-zdvbieRdZ",
+                "name": "Binance",
+                "iconUrl": "https://cdn.coinranking.com/mDTK5qrmq/binance.svg",
+                "numberOfMarkets": 3,
+                "24hVolume": "776337030.2052088",
+                "rank": 1,
+                "marketShare": "12.22",
+                "verified": true,
+                "recommended": true
+            },
+            {
+                "coinrankingUrl": "https://coinranking.com/exchange/XHp8eCjIDc+zb",
+                "uuid": "XHp8eCjIDc",
+                "name": "ZB",
+                "iconUrl": null,
+                "lastTickerCreatedAt": 1546960123000,
+                "numberOfMarkets": 128,
+                "24hVolume": "693976176.906341",
+                "rank": 2,
+                "marketShare": "10.92",
+                "verified": false,
+                "recommended": false
+            }
+        ]
+    }
+}
+```
+* Error
+```
+{
+    "status":"fail",
+    "code":"UNAUTHORIZED",
+    "message":"To use this endpoint please generate a free API key: https://developers.coinranking.com/create-account and upgrade to the right subscription plan: https://developers.coinranking.com/api/pricing"
+}
+```
+## __Regex__
+```
+coinranking[a-z0-9]{48}
+```
+
+## __Example API key__
+```
+coinrankingabcdefghij12345abcw94d869bf2608a5aa76ba8aa7ede
+```