diff --git a/README.md b/README.md
index 4d04ddf..85d4e2a 100755
--- a/README.md
+++ b/README.md
@@ -6,17 +6,31 @@ your development environment and the the usage of preptools CLI commands.
 ## Building from source
 First, clone this project. Then go to the project directory, create a virtualenv environment, and run build script. You can then install preptools with the .whl file.
 ```
-$ python -m venv venv       # Crate a virtual environment.
-$ source venv/bin/activate  # Enter the vitual environment.
+$ python -m venv venv             # Crate a virtual environment.
+$ source venv/bin/activate        # Enter the vitual environment.
 (venv)$ ./build.sh                # run build script.
 (venv)$ ls dist                   # check result wheel file.
-preptools-0.0.1-py3-none-any.whl
+preptools-1.0.0-py3-none-any.whl
 ```
 
 ## Installation
-In case of Installation, you can install with wheel file that you've built.
+This chapter will explain how to install T-Bears on your system.
+
+### Requirements
+
+* OS: MacOS or Linux
+  * Windows is not supported.
+
+* Python
+  * Make a virtualenv for Python 3.6.5+ (3.7 is also supported)
+  * Check your Python version
+    ```bash
+    $ python3 -V
+    ```
+### Setup
+In case of install, you can install with wheel file that you've built.
 ```
-$ pip install dist/prep-0.0.1-py3-none-any.whl
+$ pip install dist/preptools-1.0.0-py3-none-any.whl
 ```
 
 ## How to use P-Rep tools
@@ -35,82 +49,927 @@ usage: preptools [-h] command
 P-Rep management cli
 
 optional arguments:
-  -h, --help            show this help message and exit
+  -h, --help                show this help message and exit
 
 subcommands:
-    registerPrep            Register P-Rep
-    unregisterPrep          Unregister P-Rep
-    setPrep                 Change enrolled P-Rep information
-    setGovernanceVariables  Change Governance variables used in network operation
-    getPRep                 Inquire P-Rep information
-    getPReps                Get live status of all registered P-Rep candidates
-    txresult                Get transaction result by transaction hash
-    txbyhash                Get transaction by hash
+    registerPRep        Register P-Rep
+    unregisterPRep      Unregister P-Rep
+    setPRep             Change enrolled P-Rep information
+    setGovernanceVariables
+                        Change Governance variables used in network operation
+    getPRep             Inquire P-Rep information
+    getPReps            Get live status of all registered P-Rep candidates
+    txresult            Get transaction result by hash
+    txbyhash            Get transaction by hash
+    keystore            Create keystore file in the specified path.
+    genconf             Create config file in the specified path.
 ```
 
 #### Options
 
+| shorthand, Name | default | Description                     |
+| :-------------- | :------ | :------------------------------ |
+| -h, --help      |         | Show this help message and exit |
+
+
+### Preptools setting commands
+
+Commands that setting the P-Rep info. There are four commands `preptools registerPRep`, `preptools unregisterPRep`, 
+`preptools setPRep` and `preptools setGovernanceVariables`. 
+Whenever this commands are called, it loads the configuration from `preptools_config.json`.
+If you want to use other configuration file, you can specify the file location with the `-c` option.
+#### preptools registerPRep
 
-### Example
+**Description**
+
+Register P-Rep.   
+There are three way of register P-Rep.   
+  - Using command line option  
+    You can input P-Rep information with --[OPT_NAME] OPT_VALUE.  
+    The priority of json and command line is command line > json 
+     
+  - Using json file  
+    You can input P-Rep information with --prep-json JSON_PATH.  
+    
+    
+  - Using interactive mode  
+    If any information that have to entered remain, interactive mode activate and get P-Rep information.
+
+**Usage**
 
 ```bash
-$ cat prep1.json
-{       "name": "banana node",
+usage: preptools registerPRep [-h] [--url URL] [--nid NID] [--config CONFIG]
+                              [--password PASSWORD] [--keystore KEYSTORE]
+                              [--name NAME] [--country COUNTRY] [--city CITY]
+                              [--email EMAIL] [--website WEBSITE]
+                              [--details DETAILS] [--p2p-endpoint P2PENDPOINT]
+                              [--prep-json PREP_JSON]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --url URL, -u URL     node url default) http://127.0.0.1:9000/api/v3
+  --nid NID, -n NID     networkId default(3 ex) mainnet(1), testnet(2)
+  --config CONFIG, -c CONFIG
+                        preptools config file path
+  --password PASSWORD, -p PASSWORD
+                        keystore password
+  --keystore KEYSTORE, -k KEYSTORE
+                        keystore file path
+  --name NAME           P-Rep name
+  --country COUNTRY     P-Rep's country
+  --city CITY           P-Rep's city
+  --email EMAIL         P-Rep's email
+  --website WEBSITE     P-Rep's homepage url
+  --details DETAILS     P-Rep off-chain details
+  --p2p-endpoint P2PENDPOINT
+                        Network info used for connecting among P-Rep nodes
+  --prep-json PREP_JSON
+                        json file having P-Rep information
+```
+
+**Options**
+
+| shorthand, Name | default                     | Description                                                           |
+| :-------------- | :-------------------------- | :---------------------------------------------------------------------|
+| -h, --help      |                             | show this help message and exit                                       |
+| -u, --url       | http://127.0.0.1/api/v3     | node url                                                              |
+| -n, --nid       | 3                           | network id                                                            |
+| -c, --config    | ./preptools_config.json     | preptools config file path                                            |
+| -p, --password  |                             | keystore password                                                     |
+| -k, --keystore  |                             | keystore file path                                                    |
+| --name          |                             | P-Rep name                                                            |
+| --country       |                             | P-Rep's country. This require [ISO 3166-1 alpha-3](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-3) standard.|
+| --city          |                             | P-Rep's city.                                                         |
+| --email         |                             | P-Rep's email.                ex) "example@iconloop.com"              |
+| --website       |                             | P-Rep's homepage url.         ex) "https://node.example.com/"         |
+| --details       |                             | P-Rep off chain details.      ex) "https://node.example.com/json"     |
+| --p2p-endpoint  |                             | Network info used for connection among P-Rep nodes.                   |
+|                 |                             |                               ex) “123.45.67.89:7100” or “node.example.com:7100”|
+| --prep-json     |                             | json file having P-Rep information                                    |
+
+**Examples**
+```bash
+(venv) $ cat registerPRep.json 
+{
+    "name": "banana node",
+    "country": "USA",
+    "city": "New York",
+    "email": "banana@example.com",
+    "website": "https://icon.banana.com",
+    "details": "https://icon.banana.com/json",
+    "p2pEndpoint": "node.example.com:7100"
+}
+
+(venv) $ preptools registerPRep -k test_keystore --prep-json registerPRep.json 
+> Password: 
+[Request] ======================================================================
+{
+    "from_": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
+    "to": "cx0000000000000000000000000000000000000000",
+    "value": 2000000000000000000000,
+    "step_limit": 268435456,
+    "nid": 3,
+    "nonce": null,
+    "version": 3,
+    "timestamp": null,
+    "method": "registerPRep",
+    "data_type": "call",
+    "params": {
+        "name": "banana node",
+        "country": "USA",
+        "city": "New York",
         "email": "banana@example.com",
         "website": "https://icon.banana.com",
         "details": "https://icon.banana.com/json",
-        "p2pEndPoint": "123.45.67.89:7100",
+        "p2pEndpoint": "node.example.com:7100"
+    }
 }
 
-$ prep register -k ./keystore_test1 -p test1_Account -j ./prep1.json -u http://localhost:9000/api/v3
-result:  0x081ea7b7df689ca7a95e33d61eda473c3a238b05829a62d42303b7958f355bf5
+> Continue? [Y/n]
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": "0xe667b8de967e4c5e2cc5f4fc2775766f87517935e0875a8c4d0b9c8c2ce01846",
+    "id": 1234
+}
 
-$ prep unregister -k ./keystore_test1 -p test1_Account -u http://localhost:9000/api/v3
-result:  0x9444ebbfdc4cb552db6cc52a2e95104525466e110eb52ff1215fc43cf32ecad0
+(venv) $ cat registerPRep.json 
+{
+    "email": "banana@example.com",
+    "website": "https://icon.banana.com",
+    "details": "https://icon.banana.com/json",
+    "p2pEndpoint": "node.example.com:7100"
+}
+
+(venv) preptools registerPRep -k test_keystore --prep-json registerPRep.json --name "kokoa node"
+> Password: 
+ > country : USA
+ > city : New York
+[Request] ======================================================================
+{
+    "from_": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
+    "to": "cx0000000000000000000000000000000000000000",
+    "value": 2000000000000000000000,
+    "step_limit": 268435456,
+    "nid": 3,
+    "nonce": null,
+    "version": 3,
+    "timestamp": null,
+    "method": "registerPRep",
+    "data_type": "call",
+    "params": {
+        "email": "banana@example.com",
+        "website": "https://icon.banana.com",
+        "details": "https://icon.banana.com/json",
+        "p2pEndpoint": "node.example.com:7100",
+        "name": "kokoa node",
+        "country": "USA",
+        "city": "New York"
+    }
+}
+
+> Continue? [Y/n]
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": "0xeb00ea0ad9ee155067f37015d2403067904649a76a35dd06197600e408d30e3e",
+    "id": 1234
+}
 ```
 
+#### preptools unregisterPRep
 
-## Prep 해지
+**Description**
 
-Prep unregister 명령어를 실행하기 위해선 키스토어 파일만 있으면 된다.
+Unregister P-Rep.  
 
-### Usage
 
+**Usage**
 ```bash
-$ prep unregister -k [키스토어경로] -p [키스토어 비밀번호(옵셔널)]  -u [노드url(기본값: http:localhost:9000/api/v3)] -a [삭제할 P-rep 주소(builtin-score-owner를 위한 옵션)] -n [nid(기본값:3)] -s [stepLimit(기본값: 200만)]
+usage: preptools unregisterPRep [-h] [--url URL] [--nid NID] [--config CONFIG]
+                                [--password PASSWORD] [--keystore KEYSTORE]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --url URL, -u URL     node url default) http://127.0.0.1:9000/api/v3
+  --nid NID, -n NID     networkId default(3 ex) mainnet(1), testnet(2)
+  --config CONFIG, -c CONFIG
+                        preptools config file path
+  --password PASSWORD, -p PASSWORD
+                        keystore password
+  --keystore KEYSTORE, -k KEYSTORE
+                        keystore file path
 ```
 
-### Example
+**Options**
+
+| shorthand, Name | default                     | Description                                          |
+| :-------------- | :-------------------------- | :--------------------------------------------------- |
+| -h, --help      |                             | show this help message and exit                      |
+| -u, --url       | http://127.0.0.1/api/v3     | node url                                             |
+| -n, --nid       | 3                           | network id                                           |
+| -c, --config    | ./preptools_config.json     | preptools config file path                           |
+| -p, --password  |                             | keystore password                                    |
+| -k, --keystore  |                             | keystore file path                                   |
+
+
+**Examples**
 
 ```bash
-$ prep unregister -k keystore_file.json -p password123 -u http://localhost:9000/api/v3
-result:  0x9444ebbfdc4cb552db6cc52a2e95104525466e110eb52ff1215fc43cf32ecad0
+(venv) $ preptools unregisterPRep -k test_keystore 
+> Password: 
+[Request] ======================================================================
+{
+    "from_": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
+    "to": "cx0000000000000000000000000000000000000000",
+    "value": 0,
+    "step_limit": 268435456,
+    "nid": 3,
+    "nonce": null,
+    "version": 3,
+    "timestamp": null,
+    "method": "unregisterPRep",
+    "data_type": "call",
+    "params": {}
+}
+
+> Continue? [Y/n]
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": "0x027038296f595aedd1bfa680de2e20c3fd133816f9c74807e440bf6c548fb9aa",
+    "id": 1234
+}
 ```
 
+#### preptools setPRep
 
-## Prep list 출력
+**Description**  
 
-등록되어 있는 PRep들을 출력한다.(j옵션을 사용하지 않는다면 모든 PRep을 출력하고, 사용한다면 설정한만큼의 PRep들만을 출력한다.)
+Change enrolled P-Rep information.  
+There are three way of set P-Rep.   
+  - Using command line option  
+    You can input P-Rep information with --[OPT_NAME] OPT_VALUE.  
+    The priority of json and command line is command line > json 
+     
+  - Using json file  
+    You can input P-Rep information with --prep-json JSON_PATH.  
+    
+    
+  - Using interactive mode [--i]  
+    Activate interactive mode and input P-Rep info what you want.   
+    If you don't want to input, just enter.
 
-### Usage
+**Usage**
 
 ```bash
-$ prep preps -u [노드url(기본값: http://localhost:9000/api/v3)] -j [참조할 json경로]
+usage: preptools setPRep [-h] [--url URL] [--nid NID] [--config CONFIG]
+                         [--password PASSWORD] [--keystore KEYSTORE] [-i]
+                         [--name NAME] [--country COUNTRY] [--city CITY]
+                         [--email EMAIL] [--website WEBSITE]
+                         [--details DETAILS] [--p2p-endpoint P2PENDPOINT]
+                         [--prep-json PREP_JSON]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --url URL, -u URL     node url default) http://127.0.0.1:9000/api/v3
+  --nid NID, -n NID     networkId default(3 ex) mainnet(1), testnet(2)
+  --config CONFIG, -c CONFIG
+                        preptools config file path
+  --password PASSWORD, -p PASSWORD
+                        keystore password
+  --keystore KEYSTORE, -k KEYSTORE
+                        keystore file path
+  -i, --interactive     Activate interactive mode when prep fields are blank.
+  --name NAME           PRep name
+  --country COUNTRY     P-Rep's country
+  --city CITY           P-Rep's city
+  --email EMAIL         P-Rep's email
+  --website WEBSITE     P-Rep's homepage url
+  --details DETAILS     P-Rep off-chain details
+  --p2p-endpoint P2PENDPOINT
+                        Network info used for connecting among P-Rep nodes
+  --prep-json PREP_JSON
+                        json file having prepInfo
 ```
 
-참조할 json은 getPRepCandidateList 메서드에 파라미터로 넘길 대한 정보를 가지고 있으며, 이 옵션에 값을 넘겨주지 않으면 빈 딕셔너리를 파라미터로 넘긴다.
+**Options**
+
+| shorthand, Name | default                     | Description                                                           |
+| :-------------- | :-------------------------- | :---------------------------------------------------------------------|
+| -h, --help      |                             | show this help message and exit                                       |
+| -u, --url       | http://127.0.0.1/api/v3     | node url                                                              |
+| -n, --nid       | 3                           | network id                                                            |
+| -c, --config    | ./preptools_config.json     | preptools config file path                                            |
+| -p, --password  |                             | keystore password                                                     |
+| -k, --keystore  |                             | keystore file path                                                    |
+| -i, --interactive|                            | Activate interactive mode when prep fields are blank.                 |
+| --name          |                             | P-Rep name                                                            |
+| --country       |                             | P-Rep's country. This require [ISO 3166-1 alpha-3](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-3) standard.|
+| --city          |                             | P-Rep's city.                                                         |
+| --email         |                             | P-Rep's email.                ex) "example@iconloop.com"              |
+| --website       |                             | P-Rep's homepage url.         ex) "https://node.example.com/"         |
+| --details       |                             | P-Rep off chain details.      ex) "https://node.example.com/json"     |
+| --p2p-endpoint  |                             | Network info used for connection among P-Rep nodes.                   |
+|                 |                             |                               ex) “123.45.67.89:7100” or “node.example.com:7100”|
+| --prep-json     |                             | json file having P-Rep information                                    |
+
+
+**Examples**
+```bash
+(venv) $ cat setPRep.json 
+{
+    "name": "kokoa node",
+    "country": "USA",
+    "website": "https://icon.kokoa.com",
+    "details": "https://icon.kokoa.com/json",
+    "p2pEndpoint": "node.example.com:7100"
+}
 
-- json file 예
-```json
+(venv) $ preptools setPRep -k test_keystore --prep-json setPRep.json 
+> Password: 
+[Request] ======================================================================
+{
+    "from_": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
+    "to": "cx0000000000000000000000000000000000000000",
+    "value": 0,
+    "step_limit": 268435456,
+    "nid": 3,
+    "nonce": null,
+    "version": 3,
+    "timestamp": null,
+    "method": "setPRep",
+    "data_type": "call",
+    "params": {
+        "name": "kokoa node",
+        "country": "USA",
+        "website": "https://icon.kokoa.com",
+        "details": "https://icon.kokoa.com/json",
+        "p2pEndpoint": "node.example.com:7100"
+    }
+}
+
+> Continue? [Y/n]
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": "0xc8456053128897a0941dab4c79428db91dda5a2899e3813698146ac25808c4c9",
+    "id": 1234
+}
+
+(venv) $ preptools setPRep -k test_keystore --prep-json setPRep.json -i
+> Password: 
+ > city : New York
+ > email : 
+[Request] ======================================================================
+{
+    "from_": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
+    "to": "cx0000000000000000000000000000000000000000",
+    "value": 0,
+    "step_limit": 268435456,
+    "nid": 3,
+    "nonce": null,
+    "version": 3,
+    "timestamp": null,
+    "method": "setPRep",
+    "data_type": "call",
+    "params": {
+        "name": "kokoa node",
+        "country": "USA",
+        "website": "https://icon.kokoa.com",
+        "details": "https://icon.kokoa.com/json",
+        "p2pEndpoint": "node.example.com:7100",
+        "city": "New York"
+    }
+}
+
+> Continue? [Y/n]
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": "0xff0c4b603a2ae5ba50f658e0d0188210a5afeec559e44df29b55806342fa4563",
+    "id": 1234
+}
+
+```
+
+#### preptools setGovernanceVariables
+
+**Description**  
+
+Change Governance variables used in network operation  
+You can only change it once per term.  
+Other items besides irep may be added later.  
+
+
+
+**Usage**
+```bash
+usage: preptools setGovernanceVariables [-h] [--url URL] [--nid NID]
+                                        [--config CONFIG]
+                                        [--password PASSWORD]
+                                        [--keystore KEYSTORE] --irep IREP
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --url URL, -u URL     node url default) http://127.0.0.1:9000/api/v3
+  --nid NID, -n NID     networkId default(3 ex) mainnet(1), testnet(2)
+  --config CONFIG, -c CONFIG
+                        preptools config file path
+  --password PASSWORD, -p PASSWORD
+                        keystore password
+  --keystore KEYSTORE, -k KEYSTORE
+                        keystore file path
+  --irep IREP           amounts of irep
+```
+
+**Options**
+
+| shorthand, Name | default                     | Description                                          |
+| :-------------- | :-------------------------- | :--------------------------------------------------- |
+| -h, --help      |                             | show this help message and exit                      |
+| -u, --url       | http://127.0.0.1/api/v3     | node url                                             |
+| -n, --nid       | 3                           | network id                                           |
+| -c, --config    | ./preptools_config.json     | preptools config file path                           |
+| -p, --password  |                             | keystore password                                    |
+| -k, --keystore  |                             | keystore file path                                   |
+| --irep          |                             | amounts of irep                                      |
+
+**Examples**
+
+```bash
+(venv) $ preptools setGovernanceVariables --irep 0x0x21e19e0c9bab2400000
+> Password: 
+[Request] ======================================================================
+{
+    "from_": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
+    "to": "cx0000000000000000000000000000000000000000",
+    "value": 0,
+    "step_limit": 268435456,
+    "nid": 3,
+    "nonce": null,
+    "version": 3,
+    "timestamp": null,
+    "method": "setGovernanceVariables",
+    "data_type": "call",
+    "params": {
+        "irep": "0x0x21e19e0c9bab2400000"
+    }
+}
+
+> Continue? [Y/n]
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": "0xc15b6989cd39e01b3d4bb65b72e6f7fcbc009020779b7f9fc60d59da4df7b091",
+    "id": 1234
+}
+```
+
+### Preptools information commands
+
+Commands that show the P-Rep information. There are two commands `preptools getPRep` and `preptools getPReps`.
+
+#### preptools getPRep
+**Description**  
+
+Inquire P-Rep information
+
+**Usage**
+```bash
+usage: preptools getPRep [-h] [--url URL] [--nid NID] [--config CONFIG]
+                         address
+
+positional arguments:
+  address               Address of P-Rep you are looking for
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --url URL, -u URL     node url default) http://127.0.0.1:9000/api/v3
+  --nid NID, -n NID     networkId default(3 ex) mainnet(1), testnet(2)
+  --config CONFIG, -c CONFIG
+                        preptools config file path
+```
+
+**Options**
+
+| shorthand, Name | default                     | Description                                          |
+| :-------------- | :-------------------------- | :--------------------------------------------------- |
+| -h, --help      |                             | show this help message and exit                      |
+| -u, --url       | http://127.0.0.1/api/v3     | node url                                             |
+| -n, --nid       | 3                           | network id                                           |
+| -c, --config    | ./preptools_config.json     | preptools config file path                           |
+| address         |                             | Address of P-Rep you are looking for                 |
+
+**Examples**
+```bash
+venv) $ preptools getPRep hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6
+[Request] ======================================================================
+{
+    "from_": "hx1234567890123456789012345678901234567890",
+    "to": "cx0000000000000000000000000000000000000000",
+    "method": "getPRep",
+    "params": {
+        "address": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6"
+    }
+}
+
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": {
+        "status": "0x1",
+        "grade": "0x2",
+        "name": "kokoa node",
+        "country": "USA",
+        "city": "New York",
+        "stake": "0x0",
+        "delegated": "0x0",
+        "totalBlocks": "0x0",
+        "validatedBlocks": "0x0",
+        "irep": "0xa968163f0a57b400000",
+        "irepUpdateBlockHeight": "0x58f",
+        "lastGenerateBlockHeight": "-0x1",
+        "email": "rhkddnjs99@hotmail.com",
+        "website": "https://icon.kokoa.com",
+        "details": "https://icon.kokoa.com/json",
+        "p2pEndpoint": "node.example.com:7100",
+        "publicKey": "0x040d60ccc4fd29307304a8e84715e6e1a2e643bcff14fbf90d9099dfc84585a6f6f0b6944594efebe433a12a005ba56d215d6e51697a3360b5d741f8db89955c66"
+    },
+    "id": 1234
+}
+```
+
+#### preptools getPReps
+**Description**  
+
+Get live status of all registered P-Rep candidates
+
+**Usage**
+```bash
+usage: preptools getPReps [-h] [--url URL] [--nid NID] [--config CONFIG]
+                          [--start-ranking START_RANKING]
+                          [--end-ranking END_RANKING]
+                          [--block-height BLOCK_HEIGHT]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --url URL, -u URL     node url default) http://127.0.0.1:9000/api/v3
+  --nid NID, -n NID     networkId default(3 ex) mainnet(1), testnet(2)
+  --config CONFIG, -c CONFIG
+                        preptools config file path
+  --start-ranking START_RANKING
+                        Get P-Rep list which starts from start ranking
+  --end-ranking END_RANKING
+                        Get P-Rep list which ends with end ranking, inclusive
+  --block-height BLOCK_HEIGHT
+                        Block height which ranking formed
+```
+
+**Options**
+
+| shorthand, Name | default                     | Description                                          |
+| :-------------- | :-------------------------- | :--------------------------------------------------- |
+| -h, --help      |                             | show this help message and exit                      |
+| -u, --url       | http://127.0.0.1/api/v3     | node url                                             |
+| -n, --nid       | 3                           | network id                                           |
+| -c, --config    | ./preptools_config.json     | preptools config file path                           |
+| --start-ranking |                             | Get P-Rep list which starts from start ranking       |
+| --end-ranking   |                             | Get P-Rep list which ends with end ranking, inclusive|
+| --block-height  |                             | Block height which ranking formed                    |
+
+**Examples**
+```bash
+(venv) $ preptools getPReps
+[Request] ======================================================================
 {
-  "startRanking": "0x1",
-  "endRanking": "0x10"
+    "from_": "hx1234567890123456789012345678901234567890",
+    "to": "cx0000000000000000000000000000000000000000",
+    "method": "getPReps",
+    "params": null
+}
+
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": {
+        "blockHeight": "0x1e3f3",
+        "startRanking": "0x0",
+        "totalDelegated": "0x0",
+        "totalStake": "0x0",
+        "preps": [
+            {
+                "name": "Banana node",
+                "country": "USA",
+                "city": "New York",
+                "grade": "0x0",
+                "address": "hx8f21e5c54f006b6a5d5fe65486908592151a7c57",
+                "irep": "0xc350",
+                "irepUpdateBlockHeight": "0x1200",
+                "lastGenerateBlockHeight": "-0x1",
+                "stake": "0x21e19e0c9bab2400000",
+                "delegated": "0x204fce5e3e25026110000000",
+                "totalBlocks": "0x2710",
+                "validatedBlocks": "0x2328"
+            },
+            ...
+        ]
+    },
+    "id": 1234
+}
+
+
+(venv) $ preptools getPReps --start-ranking "0x1" --end-ranking "0x8" --block-height "0x1234"
+[Request] ======================================================================
+{
+    "from_": "hx1234567890123456789012345678901234567890",
+    "to": "cx0000000000000000000000000000000000000000",
+    "method": "getPReps",
+    "params": {
+        "startRanking": "0x1",
+        "endRanking": "0x8",
+        "blockHeight": "0x1234"
+    }
+}
+
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": {
+        "blockHeight": "0x1e452",
+        "startRanking": "0x0",
+        "totalDelegated": "0x0",
+        "totalStake": "0x0",
+        "preps": [
+            {
+                "name": "Banana node",
+                "country": "USA",
+                "city": "New York",
+                "grade": "0x0",
+                "address": "hx8f21e5c54f006b6a5d5fe65486908592151a7c57",
+                "irep": "0xc350",
+                "irepUpdateBlockHeight": "0x1200",
+                "lastGenerateBlockHeight": "-0x1",
+                "stake": "0x21e19e0c9bab2400000",
+                "delegated": "0x204fce5e3e25026110000000",
+                "totalBlocks": "0x2710",
+                "validatedBlocks": "0x2328"
+            },
+            ...
+        ]
+    },
+    "id": 1234
 }
 ```
 
-### Example
+### Preptools Common commands
+
+Commands that generate configuration file and keystore file.
+
+#### preptools keystore
+
+**Description**
+
+Create a keystore file in the given path.
 
+**Usage**
+
+```bash
+usage: preptools keystore [-h] [-p PASSWORD] path
+
+positional arguments:
+  path                  Path of keystore file.
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -p PASSWORD, --password PASSWORD
+                        Keystore file's password
+```
+
+**Options**
+
+| shorthand, Name | default | Description                              |
+| :-------------- | :------ | :--------------------------------------- |
+| path            |         | a keystore file path that is to be generated |
+| -h, --help      |         | show this help message and exit          |
+| -p, --password  |         | Keystore file's password                 |
+| path            |         | Path of keystore file                    |
+
+**Examples**
+
+```bash
+(work) $ preptools keystore keystore_file
+Input your keystore password:
+Retype your keystore password:
+Made file successfully
+```
+
+#### preptools genconf
+
+**Description**
+
+Generate P-Rep tools config file.
+ 
 ```bash
-$ prep preps -u http://localhost:9000/api/v3
-result :  {'startRanking': '0x1', 'totalDelegated': '0x1bc16d674ec80000', 'preps': [{'address': 'hxdc8d79453ba6516bc140b7f53b6b9a012da7ff10', 'delegated': '0x1bc16d674ec80000'}]}
+usage: preptools genconf [-h] [--path PATH]
+
+optional arguments:
+  -h, --help   show this help message and exit
+  --path PATH  Path of configue file. default = /preptools_config.json
 ```
+
+**Options**
+
+| shorthand, Name | default               | Description                     |
+| :-------------- | :------               | :------------------------------ |
+| -h, --help      |                       | show this help message and exit |
+| --path          | preptools_config.json | Path of configue file.          |
+
+**Examples**
+
+```bash
+(work) $ preptools genconf
+Made ./preptools_config.json successfully
+```
+
+### Preptools Other commands
+
+Commands that are related to transaction.
+
+#### preptools txresult
+
+**Description**
+
+Get transaction result by transaction hash.
+
+**Usage**
+
+```bash
+usage: preptools txresult [-h] [--url URL] [--nid NID] [--config CONFIG]
+                          [tx_hash]
+
+positional arguments:
+  tx_hash               Enter the transaction hash
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --url URL, -u URL     node url default) http://127.0.0.1:9000/api/v3
+  --nid NID, -n NID     networkId default(3 ex) mainnet(1), testnet(2)
+  --config CONFIG, -c CONFIG
+                        preptools config file path
+```
+
+**Options**
+
+| shorthand, Name | default                      | Description                                                  |
+| :-------------- | :--------------------------- | :----------------------------------------------------------- |
+| tx_hash         |                              | Hash of the transaction to be queried                        |
+| -h, --help      |                              | show this help message and exit                              |
+| -u, --url       | http://127.0.0.1:9000/api/v3 | node url                                                     |
+| -n, --nid       | 3                            | network id                                                   |
+| -c, --config    | ./preptools_config.json      | preptools config file path                                   |
+
+**Examples**
+
+```bash
+(venv) $ preptools txresult 0xc8456053128897a0941dab4c79428db91dda5a2899e3813698146ac25808c4c9
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": {
+        "txHash": "0xc8456053128897a0941dab4c79428db91dda5a2899e3813698146ac25808c4c9",
+        "blockHeight": "0x1d980",
+        "blockHash": "0xa7354fb9427308239e56482916dd4e31988ce1f207091cdf81c656f89a066c5f",
+        "txIndex": "0x0",
+        "to": "cx0000000000000000000000000000000000000000",
+        "stepUsed": "0x21340",
+        "stepPrice": "0x2540be400",
+        "cumulativeStepUsed": "0x21340",
+        "eventLogs": [
+            {
+                "scoreAddress": "cx0000000000000000000000000000000000000000",
+                "indexed": [
+                    "PRepSet(Address)"
+                ],
+                "data": [
+                    "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6"
+                ]
+            }
+        ],
+        "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000080000000000000000000000000000000000000000000000000000000000020000000000000008000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+        "status": "0x1"
+    },
+    "id": 1234
+}
+
+
+```
+
+#### tbears txbyhash
+
+**Description**
+
+Get transaction by transaction hash
+
+**Usage**
+
+```bash
+usage: preptools txbyhash [-h] [--url URL] [--nid NID] [--config CONFIG]
+                          [tx_hash]
+
+positional arguments:
+  tx_hash               Enter the transaction hash
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --url URL, -u URL     node url default) http://127.0.0.1:9000/api/v3
+  --nid NID, -n NID     networkId default(3 ex) mainnet(1), testnet(2)
+  --config CONFIG, -c CONFIG
+                        preptools config file path
+```
+
+**Options**
+
+| shorthand, Name | default                      | Description                                                  |
+| :-------------- | :--------------------------- | :----------------------------------------------------------- |
+| tx_hash         |                              | Hash of the transaction to be queried                        |
+| -h, --help      |                              | show this help message and exit                              |
+| -u, --url       | http://127.0.0.1:9000/api/v3 | node url                                                     |
+| -n, --nid       | 3                            | network id                                                   |
+| -c, --config    | ./preptools_config.json      | preptools config file path                                   |
+
+**Examples**
+
+```bash
+(venv) $ preptools txbyhash 0xc8456053128897a0941dab4c79428db91dda5a2899e3813698146ac25808c4c9
+request success.
+[Response] =====================================================================
+{
+    "jsonrpc": "2.0",
+    "result": {
+        "version": "0x3",
+        "from": "hxef73db5d0ad02eb1fadb37d0041be96bfa56d4e6",
+        "to": "cx0000000000000000000000000000000000000000",
+        "stepLimit": "0x10000000",
+        "timestamp": "0x58fa97a48ad43",
+        "nid": "0x3",
+        "value": "0x0",
+        "dataType": "call",
+        "data": {
+            "method": "setPRep",
+            "params": {
+                "name": "kokoa node",
+                "country": "USA",
+                "website": "https://icon.kokoa.com",
+                "details": "https://icon.kokoa.com/json",
+                "p2pEndpoint": "node.example.com:7100"
+            }
+        },
+        "signature": "4krblW9KtQr6KNIJOVa22B3JFDQD6vaxepDSjMET91oua3Qeiq3UFMIHiucWiIrKGt3zaSo2K+mVW7Ge5rOtPwE=",
+        "txHash": "0xc8456053128897a0941dab4c79428db91dda5a2899e3813698146ac25808c4c9",
+        "txIndex": "0x0",
+        "blockHeight": "0x1d980",
+        "blockHash": "0xa7354fb9427308239e56482916dd4e31988ce1f207091cdf81c656f89a066c5f"
+    },
+    "id": 1234
+}
+```
+
+### Configuration Files
+#### preptools_config.json
+
+For every P-Rep tools CLI commands except `genconf` and `keystore`, this file is used to configure the default parameters and initial settings.
+
+In this configuration file, you can define default options values for some CLI commands. 
+
+```json
+{
+    "uri": "http://127.0.0.1:9000/api/v3",
+    "nid": 3,
+    "keyStore": null
+}
+```
+
+| Field              | Data  type | Description                                                  |
+| ------------------ | :--------- | :----------------------------------------------------------- |
+| uri                | string     | URI to send the request.                                     |
+| nid                | int        | Network ID. 3 is reserved for P-Rep tools.                     |
+| keyStore           | string     | Keystore file path.                                          |
+
+## References
+- [ICON JSON-RPC API v3](https://github.com/icon-project/icon-rpc-server/blob/master/docs/icon-json-rpc-v3.md)
+- [ICON Sdk Python](https://github.com/icon-project/icon-sdk-python)
+
+## License
+
+This project follows the Apache 2.0 License. Please refer to [LICENSE](https://www.apache.org/licenses/LICENSE-2.0) for details.
\ No newline at end of file
diff --git a/preptools/command/prep_info_command.py b/preptools/command/prep_info_command.py
index 91fb992..a6c4342 100644
--- a/preptools/command/prep_info_command.py
+++ b/preptools/command/prep_info_command.py
@@ -62,7 +62,6 @@ def _init_for_get_preps(sub_parser, common_parent_parser):
         "--start-ranking",
         type=str,
         required=False,
-        nargs="?",
         help="Get P-Rep list which starts from start ranking"
     )
 
@@ -70,7 +69,6 @@ def _init_for_get_preps(sub_parser, common_parent_parser):
         "--end-ranking",
         type=str,
         required=False,
-        nargs="?",
         help="Get P-Rep list which ends with end ranking, inclusive"
     )
 
@@ -78,7 +76,6 @@ def _init_for_get_preps(sub_parser, common_parent_parser):
         "--block-height",
         type=str,
         required=False,
-        nargs="?",
         help="Block height which ranking formed"
     )
 
diff --git a/preptools/command/prep_setting_command.py b/preptools/command/prep_setting_command.py
index 94df67e..13549cf 100644
--- a/preptools/command/prep_setting_command.py
+++ b/preptools/command/prep_setting_command.py
@@ -47,15 +47,13 @@ def _init_for_register_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--name",
         type=str,
         required=False,
-        nargs="?",
-        help="PRep name"
+        help="P-Rep name"
     )
 
     parser.add_argument(
         "--country",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep's country"
     )
 
@@ -63,7 +61,6 @@ def _init_for_register_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--city",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep's city"
     )
 
@@ -71,7 +68,6 @@ def _init_for_register_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--email",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep's email"
     )
 
@@ -79,7 +75,6 @@ def _init_for_register_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--website",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep's homepage url"
     )
 
@@ -87,7 +82,6 @@ def _init_for_register_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--details",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep off-chain details"
     )
 
@@ -95,7 +89,6 @@ def _init_for_register_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--p2p-endpoint",
         type=str,
         required=False,
-        nargs="?",
         dest="p2pEndpoint",
         help="Network info used for connecting among P-Rep nodes"
     )
@@ -104,8 +97,7 @@ def _init_for_register_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--prep-json",
         type=str,
         required=False,
-        nargs="?",
-        help="json file having prepInfo"
+        help="json file having P-Rep information"
     )
 
     parser.set_defaults(func=_register_prep)
@@ -217,7 +209,6 @@ def _init_for_set_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--name",
         type=str,
         required=False,
-        nargs="?",
         help="PRep name"
     )
 
@@ -225,7 +216,6 @@ def _init_for_set_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--country",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep's country"
     )
 
@@ -233,7 +223,6 @@ def _init_for_set_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--city",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep's city"
     )
 
@@ -241,7 +230,6 @@ def _init_for_set_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--email",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep's email"
     )
 
@@ -249,7 +237,6 @@ def _init_for_set_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--website",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep's homepage url"
     )
 
@@ -257,7 +244,6 @@ def _init_for_set_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--details",
         type=str,
         required=False,
-        nargs="?",
         help="P-Rep off-chain details"
     )
 
@@ -265,7 +251,6 @@ def _init_for_set_prep(sub_parser, common_parent_parser, tx_parent_parser):
         "--p2p-endpoint",
         type=str,
         required=False,
-        nargs="?",
         dest="p2pEndpoint",
         help="Network info used for connecting among P-Rep nodes"
     )
@@ -312,7 +297,6 @@ def _init_for_set_governance_variables(sub_parser, common_parent_parser, tx_pare
         "--irep",
         type=str,
         required=True,
-        nargs="?",
         help="amounts of irep"
     )
 
diff --git a/preptools/command/tx_info_command.py b/preptools/command/tx_info_command.py
index 8e0130a..2d48116 100644
--- a/preptools/command/tx_info_command.py
+++ b/preptools/command/tx_info_command.py
@@ -34,7 +34,6 @@ def _init_for_tx_result(sub_parser, common_parent_parser):
     parser.add_argument(
         "tx_hash",
         type=str,
-        nargs="?",
         help="Enter the transaction hash"
     )
 
@@ -61,7 +60,6 @@ def _init_for_tx_by_hash(sub_parser, common_parent_parser):
     parser.add_argument(
         "tx_hash",
         type=str,
-        nargs="?",
         help="Enter the transaction hash"
     )
 
diff --git a/preptools/core/prep.py b/preptools/core/prep.py
index 4e5c9f5..076cca1 100644
--- a/preptools/core/prep.py
+++ b/preptools/core/prep.py
@@ -18,13 +18,13 @@
 
 from iconsdk.builder.call_builder import CallBuilder
 from iconsdk.builder.transaction_builder import CallTransactionBuilder
-from iconsdk.exception import KeyStoreException
+from iconsdk.exception import KeyStoreException, DataTypeException
 from iconsdk.icon_service import IconService
 from iconsdk.providers.http_provider import HTTPProvider
 from iconsdk.signed_transaction import SignedTransaction
 from iconsdk.wallet.wallet import KeyWallet
 
-from preptools.exception import InvalidKeyStoreException, InvalidFileReadException
+from preptools.exception import InvalidKeyStoreException, InvalidFileReadException, InvalidDataTypeException
 from ..utils.constants import EOA_ADDRESS, ZERO_ADDRESS, COLUMN
 from ..utils.preptools_config import get_default_config
 from ..utils.utils import print_title, print_dict, get_url
@@ -142,10 +142,16 @@ def _call(self, method, params=None) -> dict:
         return self._icon_service.call(call, True)
 
     def _tx_result(self, tx_hash):
-        return self._icon_service.get_transaction_result(tx_hash, True)
+        try:
+            return self._icon_service.get_transaction_result(tx_hash, True)
+        except DataTypeException:
+            raise InvalidDataTypeException("This hash value is unrecognized.")
 
     def _tx_by_hash(self, tx_hash):
-        return self._icon_service.get_transaction(tx_hash, True)
+        try:
+            return self._icon_service.get_transaction(tx_hash, True)
+        except DataTypeException:
+            raise InvalidDataTypeException("This hash value is unrecognized.")
 
     def get_prep(self, address: str) -> dict:
         params = {"address": address}
diff --git a/preptools/exception.py b/preptools/exception.py
index df7bf27..ecbec29 100644
--- a/preptools/exception.py
+++ b/preptools/exception.py
@@ -28,6 +28,7 @@ class PRepToolsExceptionCode(IntEnum):
     FILE_WRITE_ERROR = 3
     FILE_READ_ERROR = 4
     KEYSTORE_ERROR = 5
+    DATA_TYPE_ERROR = 6
 
     def __str__(self) -> str:
         return str(self.name).capitalize().replace('_', ' ')
@@ -81,3 +82,9 @@ class InvalidKeyStoreException(PRepToolsBaseException):
     """Invalid Keystore"""
     def __init__(self, message: Optional[str]):
         super().__init__(message, PRepToolsExceptionCode.KEYSTORE_ERROR)
+
+
+class InvalidDataTypeException(PRepToolsBaseException):
+    """Invalid Keystore"""
+    def __init__(self, message: Optional[str]):
+        super().__init__(message, PRepToolsExceptionCode.DATA_TYPE_ERROR)
diff --git a/setup.py b/setup.py
index 56758d7..15b8833 100755
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 setup_options = {
     'name': 'preptools',
-    'version': '0.0.1',
+    'version': '1.0.0',
     'description': 'Test suite for ICON SCORE development',
     'author': 'ICON Foundation',
     'author_email': 'foo@icon.foundation',