diff --git a/chains/README.md b/chains/README.md
new file mode 100644
index 00000000..fece76f4
--- /dev/null
+++ b/chains/README.md
@@ -0,0 +1,61 @@
+# Directory Layout
+
+**We accept all blockchains which have 10+ independent validators.**
+
+- Submit configs for mainnet, go to https://github.com/ping-pub/explorer/tree/master/chains/mainnet
+
+- Submit configs for testnet, go to https://github.com/ping-pub/explorer/tree/master/chains/testnet
+
+# Sample of Config
+
+```json
+{
+    "chain_name": "cosmos",
+    "api": [
+        {
+            "address": "https://cosmos.api.ping.pub", 
+            "provider": "Ping"
+        }
+    ], 
+    "rpc": [
+        {
+            "address": "https://cosmos.api.ping.pub", 
+            "provider": "Ping"
+        }
+    ],
+    "sdk_version": "0.42.6",
+    "coin_type": "118",
+    "min_tx_fee": "800",
+    "assets": [{
+        "base": "uatom",
+        "symbol": "ATOM",
+        "exponent": "6",
+        "coingecko_id": "cosmos", 
+        "logo": "https://dl.airtable.com/.attachments/e54f814bba8c0f9af8a3056020210de0/2d1155fb/cosmos-hub.svg"
+    }],
+    "addr_prefix": "cosmos",
+    "theme_color": "#ce4747",
+    "logo": "https://dl.airtable.com/.attachments/e54f814bba8c0f9af8a3056020210de0/2d1155fb/cosmos-hub.svg"
+}
+```
+- **chain_name** the name to identify the chain on ping.pub, would be better to use the same one as regitstry
+- **api** the rest api endpoint.(make sure that CORS is enabled: `Allow-Control-Allow-Origin: *`)
+- **rpc** the rpc endpoint, make sure that the port is added. rpc endpoint is only used for state sync. it's optional.
+- **assets** Native Assets on blockchain. 
+
+Endpoint providers will be listed in the "Popular" tab of the staking.
+
+# Test 
+
+please add these check points in comments with your PR, and adding your test result by clicking the checkbox of each line
+```
+Test Result:
+- [ ] Connect wallet, check if address is correct? 
+- [ ] Transfer
+- [ ] Delegate
+- [ ] Redelegate
+- [ ] Unbond
+- [ ] withdraw Validator's Commission
+- [ ] withdraw Rewards
+```
+Test is very important for us and our users. 
diff --git a/chains/mainnet/cosmos.json b/chains/mainnet/cosmos.json
index 7376c77f..2bd61064 100644
--- a/chains/mainnet/cosmos.json
+++ b/chains/mainnet/cosmos.json
@@ -2,16 +2,20 @@
     "chain_name": "cosmos",
     "registry_name": "cosmoshub",
     "api": [
-        "https://api-cosmoshub-ia.cosmosia.notional.ventures",
-        "https://lcd-cosmoshub.blockapsis.com:443",
-        "https://lcd-cosmoshub.whispernode.com:443",
-        "https://api-cosmoshub.pupmos.network",
-        "https://cosmos-rest.publicnode.com",
-        "https://cosmos-rest.staketab.org",
-        "https://api.cosmos.nodestake.top",
-        "https://rest-cosmoshub.goldenratiostaking.net"
+        {"provider": "notional", "address": "https://api-cosmoshub-ia.cosmosia.notional.ventures"},
+        {"provider": "blockapsis", "address": "https://lcd-cosmoshub.blockapsis.com:443"},
+        {"provider": "WhisperNode🤐", "address": "https://lcd-cosmoshub.whispernode.com:443"},
+        {"provider": "pupmos", "address": "https://api-cosmoshub.pupmos.network"},
+        {"provider": "publicnode", "address": "https://cosmos-rest.publicnode.com"},
+        {"provider": "staketab", "address": "https://cosmos-rest.staketab.org"},
+        {"provider": "nodestake", "address": "https://api.cosmos.nodestake.top"},
+        {"provider": "Golden Ratio Staking", "address": "https://rest-cosmoshub.goldenratiostaking.net"}
+    ],
+    "rpc": [
+        {"provider": "icycro", "address": "https://cosmos-rpc.icycro.org"}, 
+        {"provider": "dragonstake", "address": "https://rpc.cosmos.dragonstake.io"}, 
+        {"provider": "Golden Ratio Staking", "address": "https://rpc-cosmoshub.goldenratiostaking.net"}
     ],
-    "rpc": ["https://rpc.cosmos.network:443", "https://cosmos-rpc.icycro.org", "https://rpc.cosmos.dragonstake.io", "https://rpc-cosmoshub.goldenratiostaking.net"],
     "sdk_version": "0.45.1",
     "coin_type": "118",
     "min_tx_fee": "800",
diff --git a/src/modules/[chain]/staking/index.vue b/src/modules/[chain]/staking/index.vue
index 279ea5fb..a3ea7e96 100644
--- a/src/modules/[chain]/staking/index.vue
+++ b/src/modules/[chain]/staking/index.vue
@@ -120,7 +120,7 @@ const calculateRank = function (position: number) {
 
 function isFeatured(endpoints: string[], who?: {website?: string, moniker: string }) {
     if(!endpoints || !who) return false
-    return endpoints.findIndex(x => who.website && who.website?.substring(0, who.website?.lastIndexOf('.')).endsWith(x) || who?.moniker?.toLowerCase().search(x) > -1) > -1
+    return endpoints.findIndex(x => who.website && who.website?.substring(0, who.website?.lastIndexOf('.')).endsWith(x) || who?.moniker?.toLowerCase().search(x.toLowerCase()) > -1) > -1
 }
 
 const list = computed(() => {
@@ -128,6 +128,7 @@ const list = computed(() => {
         return staking.validators.map((x, i) => ({v: x, rank: calculateRank(i), logo: logo(x.description.identity)}));
     } else if (tab.value === 'featured') {
         const endpoint = chainStore.current?.endpoints?.rest?.map(x => x.provider)
+        console.log(endpoint)
         if(endpoint) {
             endpoint.push('ping')
             return staking.validators