diff --git a/x/bank/spec/06_client.md b/x/bank/spec/06_client.md
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@@ -0,0 +1,390 @@
+<!--
+order: 6
+-->
+
+# Client
+
+## CLI
+
+A user can query and interact with the `bank` module using the CLI.
+
+### Query
+
+The `query` commands allow users to query `bank` state.
+
+```
+simd query bank --help
+```
+
+#### balances
+
+The `balances` command allows users to query account balances by address.
+
+```
+simd query bank balances [address] [flags]
+```
+
+Example:
+
+```
+simd query bank balances cosmos1..
+```
+
+Example Output:
+
+```
+balances:
+- amount: "1000000000"
+  denom: stake
+pagination:
+  next_key: null
+  total: "0"
+```
+
+#### denom-metadata
+
+The `denom-metadata` command allows users to query metadata for coin denominations. A user can query metadata for a single denomination using the `--denom` flag or all denominations without it.
+
+```
+simd query bank denom-metadata [flags]
+```
+
+Example:
+
+```
+simd query bank denom-metadata --denom stake
+```
+
+Example Output:
+
+```
+metadata:
+  base: stake
+  denom_units:
+  - aliases:
+    - STAKE
+    denom: stake
+  description: native staking token of simulation app
+  display: stake
+  name: SimApp Token
+  symbol: STK
+```
+
+#### total
+
+The `total` command allows users to query the total supply of coins. A user can query the total supply for a single coin using the `--denom` flag or all coins without it.
+
+```
+simd query bank total [flags]
+```
+
+Example:
+
+```
+simd query bank total --denom stake
+```
+
+Example Output:
+
+```
+amount: "10000000000"
+denom: stake
+```
+
+### Transactions
+
+The `tx` commands allow users to interact with the `bank` module.
+
+```
+simd tx bank --help
+```
+
+#### send
+
+The `send` command allows users to send funds from one account to another.
+
+```
+simd tx bank send [from_key_or_address] [to_address] [amount] [flags]
+```
+
+Example:
+
+```
+simd tx bank send cosmos1.. cosmos1.. 100stake
+```
+
+## gRPC
+
+A user can query the `bank` module using gRPC endpoints.
+
+### Balance
+
+The `Balance` endpoint allows users to query account balance by address for a given denomination.
+
+```
+cosmos.bank.v1beta1.Query/Balance
+```
+
+Example:
+
+```
+grpcurl -plaintext \
+    -d '{"address":"cosmos1..","denom":"stake"}' \
+    localhost:9090 \
+    cosmos.bank.v1beta1.Query/Balance
+```
+
+Example Output:
+
+```
+{
+  "balance": {
+    "denom": "stake",
+    "amount": "1000000000"
+  }
+}
+```
+
+### AllBalances
+
+The `AllBalances` endpoint allows users to query account balance by address for all denominations.
+
+```
+cosmos.bank.v1beta1.Query/AllBalances
+```
+
+Example:
+
+```
+grpcurl -plaintext \
+    -d '{"address":"cosmos1.."}' \
+    localhost:9090 \
+    cosmos.bank.v1beta1.Query/AllBalances
+```
+
+Example Output:
+
+```
+{
+  "balances": [
+    {
+      "denom": "stake",
+      "amount": "1000000000"
+    }
+  ],
+  "pagination": {
+    "total": "1"
+  }
+}
+```
+
+### DenomMetadata
+
+The `DenomMetadata` endpoint allows users to query metadata for a single coin denomination.
+
+```
+cosmos.bank.v1beta1.Query/DenomMetadata
+```
+
+Example:
+
+```
+grpcurl -plaintext \
+    -d '{"denom":"stake"}' \
+    localhost:9090 \
+    cosmos.bank.v1beta1.Query/DenomMetadata
+```
+
+Example Output:
+
+```
+{
+  "metadata": {
+    "description": "native staking token of simulation app",
+    "denomUnits": [
+      {
+        "denom": "stake",
+        "aliases": [
+          "STAKE"
+        ]
+      }
+    ],
+    "base": "stake",
+    "display": "stake",
+    "name": "SimApp Token",
+    "symbol": "STK"
+  }
+}
+```
+
+### DenomsMetadata
+
+The `DenomsMetadata` endpoint allows users to query metadata for all coin denominations.
+
+```
+cosmos.bank.v1beta1.Query/DenomsMetadata
+```
+
+Example:
+
+```
+grpcurl -plaintext \
+    localhost:9090 \
+    cosmos.bank.v1beta1.Query/DenomsMetadata
+```
+
+Example Output:
+
+```
+{
+  "metadatas": [
+    {
+      "description": "native staking token of simulation app",
+      "denomUnits": [
+        {
+          "denom": "stake",
+          "aliases": [
+            "STAKE"
+          ]
+        }
+      ],
+      "base": "stake",
+      "display": "stake",
+      "name": "SimApp Token",
+      "symbol": "STK"
+    }
+  ],
+  "pagination": {
+    "total": "1"
+  }
+}
+```
+
+### DenomOwners
+
+The `DenomOwners` endpoint allows users to query metadata for a single coin denomination.
+
+```
+cosmos.bank.v1beta1.Query/DenomOwners
+```
+
+Example:
+
+```
+grpcurl -plaintext \
+    -d '{"denom":"stake"}' \
+    localhost:9090 \
+    cosmos.bank.v1beta1.Query/DenomOwners
+```
+
+Example Output:
+
+```
+{
+  "denomOwners": [
+    {
+      "address": "cosmos1..",
+      "balance": {
+        "denom": "stake",
+        "amount": "5000000000"
+      }
+    },
+    {
+      "address": "cosmos1..",
+      "balance": {
+        "denom": "stake",
+        "amount": "5000000000"
+      }
+    },
+  ],
+  "pagination": {
+    "total": "2"
+  }
+}
+```
+
+### TotalSupply
+
+The `TotalSupply` endpoint allows users to query the total supply of all coins.
+
+```
+cosmos.bank.v1beta1.Query/TotalSupply
+```
+
+Example:
+
+```
+grpcurl -plaintext \
+    localhost:9090 \
+    cosmos.bank.v1beta1.Query/TotalSupply
+```
+
+Example Output:
+
+```
+{
+  "supply": [
+    {
+      "denom": "stake",
+      "amount": "10000000000"
+    }
+  ],
+  "pagination": {
+    "total": "1"
+  }
+}
+```
+
+### SupplyOf
+
+The `SupplyOf` endpoint allows users to query the total supply of a single coin.
+
+```
+cosmos.bank.v1beta1.Query/SupplyOf
+```
+
+Example:
+
+```
+grpcurl -plaintext \
+    -d '{"denom":"stake"}' \
+    localhost:9090 \
+    cosmos.bank.v1beta1.Query/SupplyOf
+```
+
+Example Output:
+
+```
+{
+  "amount": {
+    "denom": "stake",
+    "amount": "10000000000"
+  }
+}
+```
+
+### Params
+
+The `Params` endpoint allows users to query the parameters of the `bank` module.
+
+```
+cosmos.bank.v1beta1.Query/Params
+```
+
+Example:
+
+```
+grpcurl -plaintext \
+    localhost:9090 \
+    cosmos.bank.v1beta1.Query/Params
+```
+
+Example Output:
+
+```
+{
+  "params": {
+    "defaultSendEnabled": true
+  }
+}
+```
diff --git a/x/bank/spec/README.md b/x/bank/spec/README.md
index 9a1a0afb6..53b68c7d7 100644
--- a/x/bank/spec/README.md
+++ b/x/bank/spec/README.md
@@ -100,3 +100,6 @@ The available permissions are:
 4. **[Events](04_events.md)**
    - [Handlers](04_events.md#handlers)
 5. **[Parameters](05_params.md)**
+6. **[Client](06_client.md)**
+    - [CLI](06_client.md#cli)
+    - [gRPC](06_client.md#grpc)
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