Seamless Wallet API v 1.28 2024 Page | 1 Contents 1. Document History ...................................................................................................... 3 2. API Overview ............................................................................................................. 4 3. API Login ................................................................................................................... 5 3.1. Access Token Login ............................................................................................ 5 3.2. Normal Login ....................................................................................................... 6 4. APIs .......................................................................................................................... 7 4.1. Open Game URL ................................................................................................. 7 4.2. List Game ........................................................................................................... 8 4.3. Game Round Status .......................................................................................... 10 4.4. Game History URL ............................................................................................ 11 4.5. Balance ............................................................................................................. 11 4.6. Withdraw ........................................................................................................... 12 4.7. Verify Withdraw/Deposit transaction................................................................... 12 4.8. Get Withdraw/Deposit Transaction by date ........................................................ 13 4.9. Sign Out ............................................................................................................ 15 4.10. Get Domain Whitelist ......................................................................................... 16 4.11. Register Domain Whitelist ................................................................................. 16 4.12. UnRegister Domain Whitelist ............................................................................. 17 5. Tournament APIs ..................................................................................................... 18 5.1. Open Tournament Lobby URL ........................................................................... 18 5.2. Get List Tournaments ........................................................................................ 18 5.3. Get Tournament Info ......................................................................................... 21 5.4. Get Tournament Rank ....................................................................................... 23 5.5. Get Tournament Tickets .................................................................................... 25 6. Operator Integration APIs ......................................................................................... 26 6.1. Authenticate Token ........................................................................................... 26 6.2. Authenticate Username/Password (Optional) ..................................................... 26 6.3. Balance ............................................................................................................. 27 6.4. Bet .................................................................................................................... 28 6.5. Settle Bet .......................................................................................................... 28

Seamless Wallet API v 1.28 2024 Page | 2 6.6. Cancel Bet ........................................................................................................ 29 6.7. Bonus Win ........................................................................................................ 30 6.8. Jackpot Win ...................................................................................................... 30 6.9. Transaction ....................................................................................................... 31 6.10. Withdraw ........................................................................................................... 32 6.11. Deposit ............................................................................................................. 32 7. Operator Integration Tournament APIs ..................................................................... 33 7.1. Join Tournament ............................................................................................... 33 7.2. Cancel Join Tournament .................................................................................... 34 7.3. Win Tournament ................................................................................................ 35 8. References .............................................................................................................. 36 8.1. Timestamp ........................................................................................................ 36 8.2. Hash ................................................................................................................. 36 8.3. Status Code ...................................................................................................... 37 9. FAQ ......................................................................................................................... 38

Seamless Wallet API v 1.28 2024 Page | 3 1. Document History Date Version Description By 2024-Mar-04 1.27 Add 4.10 Get Domain Whitelist API Add 4.11 Register Domain Whitelist API Add 4.12 UnRegister Domain Whitelist API Customer Support 2023-Mar-20 1.26 Access to the game lobby Customer Support 2022-Oct-19 1.25 Describe maximum length of token Customer Support 2022-Aug-25 1.24 Add 5.5. Get Tournament Tickets API Customer Support 2021-Jul-07 1.23 Add 5. Tournament APIs Add 7. Operator Integration Tournament APIs Customer Support 2021-May-05 1.21 Add 4.9. Sign Out API Customer Support 2021-Feb-18 1.20 ID, RoundId: Unique by member and only effect with new clients Customer Support 2020-Nov-6 1.19 Extend the username length to 32 characters Customer Support 2020-June-30 1.17 Get Withdraw/Deposit transactions Customer Support 2020-April-20 1.15 Remove extendedinfo Customer Support 2020-April-08 1.14 Add extendedinfo parameter for bet API Customer Support 2020-Mar-27 1.13 The username: 4 to 20 alphanumeric characters and insensitive Customer Support 2020-Feb-12 1.12 Add extendedinfo parameter for settle-bet API Customer Support 2019-July-24 1.10 Add balance, withdraw API Customer Support 2019-March-22 1.0 Create Customer Support

Seamless Wallet API v 1.28 2024 Page | 4 2. API Overview Common terms are used in the document:  Provider : refers to API/System.  Operator : refers to who needs to integrate with our system. Operator and Operator’s system are synonymous terms in this document. This document describes set of APIs which Operator needs to implement to integrate with Seamless Wallet API Provider API and Operator Integration API uses hash to validate incoming request integrity. The hash encryption algorithm is described in section 8.2. Some APIs are required to be idempotent which means making multiple identical requests has the same effect as making a single request. Operator Integration API responses with Status integer number which indicates if the request success. The Status reference is described in section 8.3 APIs Timeout is 2.5 seconds.

Seamless Wallet API v 1.28 2024 Page | 5 3. API Login The provider supports 2 types of login method:  Access Token Login (suitable for Website)  Normal Login (suitable for Mobile App) 3.1. Access Token Login Access Token login can be used when Operator hosts the provider’s games in their lobby. The flow is as following: 1. After Player logins on Operator system, Operator system passes the Token to open Game link: {gaming- url}/playGame?token={Token}&appID={AppID}&gameCode={GameCode}&languag e={language}&mobile={isMobile}&redirectUrl={redirectUrl} 2. Game client calls the provider API which in return calls Operator Integration API to authenticate Token. 3. Operator Integration API responses to validate the token together with Username, Balance 4. Provider game site shows the game. Diagram 1: Access Token Login Provider server Provider Gaming Website Provider API Provider Game Server

Seamless Wallet API v 1.28 2024 Page | 6 3.2. Normal Login We provide normal login option which allows Operator’s player s to login directly on the gaming platform (Mobile app). 1. The Player downloads the gaming platform (mobile app) and login using his username/password. 2. The game client calls API which in return calls Operator Authenticate Integration API to authenticate username/password. 3. Operator Integration API responses to validate the username/password together with Token, Balance. 4. Gaming App shows the game. Diagram 2: Normal Login Provider App Provider Server Provider App Provider API

Seamless Wallet API v 1.28 2024 Page | 7 4. APIs 4.1. Open Game URL Request GET {gaming-url}/playGame?token={token}&appID={appID}&gameCode={gameCode}& language={language}&mobile={isMobile}&redirectUrl={redirectUrl} Property Type Compulsory Description appID String Y token String Y - Generated by Operator. Player is uniquely identified by Token. - Token has max length 64 characters gameCode String Y - Game code as listed by provider. - The game lobby opened when gamecode is empty language String N The Player's preferred language (ISO 639-1, 2 letter code) mobile Boolean N true/false redirectUrl String N The URL will be redirected when client logout

Seamless Wallet API v 1.28 2024 Page | 8 4.2. List Game Return the list of games and associated resources. Those games with the lower Order value should be placed on top. They are new and more popular games. Note: the Order will be kept changing as new games are added or the popularity of the games are changed. Request POST {api-url}/list-games Content-Type: application/json {"AppID":"AppID","Hash":"792d2414e3b0c77e9ddea9e8aa924364","Timestamp":1528210236} Property Type Compulsory Description AppID String Y Hash String Y Timestamp Long Y UNIX timestamp Response { "Error": "0", "Description": "OK", "ListGames": [ { "GameType": "Slot", "GameCode": "dxxsh3dfmjpio", "GameName": "Tai Shang Lao Jun", "SupportedPlatForms": "Desktop,Mobile", "Specials": "hot,new", "Order": 1, "DefaultWidth": 960, "DefaultHeight": 630, "Image1": "//sampledomain/gameimages/landscape/fwria11mjbrwh.png" } .... ] }

Seamless Wallet API v 1.28 2024 Page | 9 Array of: Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y Property Type Compulsory Description GameCode String Y Game identifier GameName String Y Game name DefaultWidth Integer Y With of game window DefaultHeight Integer Y Height of game window GameType String Y Game type e.g. Slot, Fishing SupportedPlatForms String Y Specials String Y Order Integer Y Image1 String Y

Seamless Wallet API v 1.28 2024 Page | 10 4.3. Game Round Status Request POST {api-url}/game-round-status Content-Type: application/json {"AppID":"AppID","RoundID":"uhax9gb5upqgq","Username":"DEMO","Hash":"792d2414e3b0c77e9 ddea9e8aa924364","Timestamp":1528210236} Property Type Compulsory Description AppID String Y Hash String Y RoundID String Y Timestamp Long Y UNIX timestamp Username String Y Do not use this property in Hash Response: Content-Type: application/json { "Error": "0", "Description": "OK", "Bets": [ { "ID": "gh6gqyfdyxnx6", "Status": "Settled", "Amount": 0.10, "Result": 0.6 } .... ] } Array of: Property Type Compulsory Description ID String Y BetID Status String Y Success, Cancelled, Settled

Seamless Wallet API v 1.28 2024 Page | 11 4.4. Game History URL Request POST {api-url}/game-history-url Content-Type: application/json {"AppID":"AppID","Username":"DEMO","GameCode":"xea1rt9gebhwy","RoundID":"uhax9gb5upqg q","Language":"en","Hash":"792d2414e3b0c77e9ddea9e8aa924364","Timestamp":1528210236} Response: Content-Type: application/json { "Error": "0", "Description": "OK", "Url": "//History?Signature=k2Nyoas94qHkAaoIKuYAdJEnr9c%3d&Key=xkqryq3b5aeuq&Type=Game&Tim estamp=1552962025093&Lang=en" } 4.5. Balance The API returns the current credit balance of the player Request POST {api-url}/balance Content-Type: application/json {"AppID":"AppID","Username":"DEMO,"Hash":"792d2414e3b0c77e9ddea9e8aa924364","Timestam p":1528210236} Response: Content-Type: application/json { "Error": "0", "Description": "OK", "Amount": 100.01 } Property Type Compulsory Description URL String Y Property Type Value Compulsory Description Amount Decimal Positive numeric Y

Seamless Wallet API v 1.28 2024 Page | 12 4.6. Withdraw The API allows the Operator to trigger the deposit API (The deposit API which is used to return money back from the Provider' system to Operator's system) Request POST {api-url}/withdraw Content-Type: application/json {"AppID":"AppID","Username":"DEMO,"Hash":"792d2414e3b0c77e9ddea9e8aa924364","Timestam p":1528210236} Response: Content-Type: application/json { "Error": "0", "Description": "OK" } 4.7. Verify Withdraw/Deposit transaction Request POST {api-url}/ statement-by-request Content-Type: application/json {"Username":"DEMO","AppID":"AppID","IDs":" 5ee99dcba3787, 5ee98746d9216", "Timestamp":"1593144363603","Hash":"abb7cc87ea3914e46c3a9562dfe89832"} Property Type Compulsory Description AppID String Y Hash String Y Username String Y Timestamp Long Y UNIX timestamp IDs String Y The list requestIDs are separated by commas Response: Content-Type: application/json { "Error": "0", "Description": "OK", "Data": [ { "Id": "5ee99dcba3787", "Username": "AppID.DEMO",

Seamless Wallet API v 1.28 2024 Page | 13 "Time": "2020-06-24T15:38:55.169", "Amount": 20.00, "Type": "TopUp" }, { "Id": "5ee98746d9216", "Username": "AppID.DEMO ", "Time": "2020-06-24T15:40:04.152", "Amount": -3594.90, "Type": "Withdraw" } …… ] } Property Type Compulsory Description Error String Y Description String Y Data Array Y Id String Y Username String Y Time String Y Amount Decimal Y Type String Y - TopUp: Deposit - Withdraw: Withdraw 4.8. Get Withdraw/Deposit Transaction by date Request POST {api-url}/ statement-by-date Content-Type: application/json {"Username":"DEMO","AppID":"AppID","Date":"2020-06-24", "Timestamp":"1593498325050", "Hash":"edc6c90c32b1e148d9c2bbf4f4eeb311"} Property Type Compulsory Description AppID String Y Hash String Y Username String Y Timestamp Long Y UNIX timestamp Date String Y Date format: yyyy-MM-dd

Seamless Wallet API v 1.28 2024 Page | 14 Response: Content-Type: application/json { "Error": "0", "Description": "OK", "Data": [ { "Id": "5ee99dcba3787", "Username": "AppID.DEMO", "Time": "2020-06-24T15:38:55.169", "Amount": 20.00, "Type": "TopUp" }, { "Id": "5ee98746d9216", "Username": " AppID.DEMO ", "Time": "2020-06-24T15:40:04.152", "Amount": -3594.90, "Type": "Withdraw" } …… ] } Property Type Compulsory Description Error String Y Description String Y Data Array Y Id String Y Username String Y Time String Y Amount Decimal Y Type String Y - TopUp: Deposit - Withdraw: Withdraw

Seamless Wallet API v 1.28 2024 Page | 15 4.9. Sign Out Request POST {api-url}/sign-out Content-Type: application/json {"AppID":"AppID","Username":"Username","Hash":"792d2414e3b0c77e9ddea9e8aa924364","Time stamp":1620184560896} Property Type Compulsory Description AppID String Y Username String Y Hash String Y Timestamp Long Y UNIX timestamp Response { "Error": "0", "Description": "Sign out successfully." } Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y

Seamless Wallet API v 1.28 2024 Page | 16 4.10. Get Domain Whitelist Request POST {api-url}/get-domain Content-Type: application/json {"AppID":"AppID","Hash":"792d2414e3b0c77e9ddea9e8aa924364","Timestamp":1620184560896} Property Type Compulsory Description AppID String Y Hash String Y Timestamp Long Y UNIX timestamp Response { "Error": "0", "Domain": ["demo.com", "www.demo.net"] } 4.11. Register Domain Whitelist The API allows the registration of up to 100 domains per agent Request POST {api-url}/register-domain Content-Type: application/json {"AppID":"AppID","Domain":"demo.com,www.demo.net","Hash":"792d2414e3b0c77e9ddea9e8aa 924364","Timestamp":1620184560896} Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y Domain Array N

Seamless Wallet API v 1.28 2024 Page | 17 Property Type Compulsory Description AppID String Y Domain String Y List of domains separated by commas Hash String Y Timestamp Long Y UNIX timestamp Response { "Error": "0", "Description ": "Ok" } 4.12. UnRegister Domain Whitelist Request POST {api-url}/unregister-domain Content-Type: application/json {"AppID":"AppID","Domain":"demo.com,www.demo.net","Hash":"792d2414e3b0c77e9ddea9e8aa 924364","Timestamp":1620184560896} Property Type Compulsory Description AppID String Y Domain String Y List of domains separated by commas Hash String Y Timestamp Long Y UNIX timestamp Response { "Error": "0", "Description ": "Ok" } Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y

Seamless Wallet API v 1.28 2024 Page | 18 5. Tournament APIs 5.1. Open Tournament Lobby URL Request GET {gaming-url}/playGame?token={token}&appID={appID}&gameCode=Tournament & language={language}&mobile={isMobile}&redirectUrl={redirectUrl} Language en English zh 汉语 th ไทย id Indonesia ms Bahasa Melayu 5.2. Get List Tournaments Request POST {api-url}/tournaments Content-Type: application/json {"AppID":"AppID","Status":"All","Timestamp":"1625640447662","Hash":"155786eaa5211c74b45ab 371c97b86ca"} Property Type Compulsory Description AppID String Y Status String Y Status has value like: - All - New - Active - Completed Hash String Y Timestamp Long Y UNIX timestamp Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y

Seamless Wallet API v 1.28 2024 Page | 19 Response { "Error": "0", "Description": "OK", "Data": [ { "TournamentID": "xeahz7p7oag51", "TournamentName": "TaiShangLaoJunGW", "StartDate": "2021-07-07T20:00:00", "EndDate": "2021-07-08T22:00:00", "Description": "Tai Shang Lao Jun", "Status": "New", "CurrencyCode": "MYR", "Prize": [ { "PrizeOCode": "nknny55cpitgg", "Amount": 10000, "Qty": 1, "Position": 1, "Ticket": 1, "Points": 1000000 } ], "Cost": 1125, "RequiredTicket": 0, "ImageLink": "http://dl.changxingwnet.com/tournament/assets/icon/248x248/5/TaiShangLaoJunGW.png", "ImageLinkSmall": "http://dl.changxingwnet.com/tournament/assets/web- icon/320x265/1/TaiShangLaoJunGW.png", "Type": "total_win", "GameCode": "dxxsh3dfmjpio", "PrizePool": 39000, "NoOfSpins": 250, "TypeDescription": "Total Win", "TypeName": "Total Win", "PoolContribution": 0 }, ………………………….. ] }

Seamless Wallet API v 1.28 2024 Page | 20 Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y Data Array Y Property Type Compulsory Description TournamentID String Y TournamentName String Y StartDate DateTime Y EndDate DateTime Y Description String Y Status String Y CurrencyCode String Y Cost Decimal Y RequiredTicket Integer Y ImageLink String Y ImageLinkSmall String Y Type String Y GameCode String Y PrizePool Decimal Y NoOfSpins Integer Y TypeDescription String Y TypeName String Y PoolContribution Decimal Y Prize Array Y Property Type Compulsory Description PrizeOCode String Y Amount Decimal Y Qty Integer Y Position Integer Y Ticket Integer Y Points Long Y

Seamless Wallet API v 1.28 2024 Page | 21 5.3. Get Tournament Info Request POST {api-url}/tournament Content-Type: application/json {"AppID":"AppID","TournamentID":"xeahz7p7oag51","Timestamp":"1625640447662","Hash":"193 6d0c41de7d522501b6b028f4fa178"} Property Type Compulsory Description AppID String Y TournamentID String Y Hash String Y Timestamp Long Y UNIX timestamp Response { "Error": "0", "Description": "OK", "Data": { "TournamentID": "xeahz7p7oag51", "TournamentName": "TaiShangLaoJunGW", "StartDate": "2021-07-07T20:00:00", "EndDate": "2021-07-08T22:00:00", "Description": "Tai Shang Lao Jun", "Status": "New", "CurrencyCode": "MYR", "Prize": [ { "PrizeOCode": "nknny55cpitgg", "Amount": 10000.0, "Qty": 1, "Position": 1, "Ticket": 1, "Points": 1000000 }, { "PrizeOCode": "nknny55cpitgg", "Amount": 5000.0, "Qty": 2, "Position": 2, "Ticket": 1, "Points": 500000 },

Seamless Wallet API v 1.28 2024 Page | 22 { "PrizeOCode": "nknny55cpitgg", "Amount": 3000.0, "Qty": 3, "Position": 3, "Ticket": 1, "Points": 300000 }, { "PrizeOCode": "nknny55cpitgg", "Amount": 1000.0, "Qty": 10, "Position": 4, "Ticket": 1, "Points": 100000 } ], "Cost": 1125.00, "RequiredTicket": 0, "ImageLink": "http://dl.changxingwnet.com/tournament/assets/icon/248x248/5/TaiShangLaoJunGW.png", "ImageLinkSmall": "http://dl.changxingwnet.com/tournament/assets/web- icon/320x265/1/TaiShangLaoJunGW.png", "Type": "total_win", "GameCode": "dxxsh3dfmjpio", "PrizePool": 39000.0, "NoOfSpins": 250, "TypeDescription": "Total Win", "TypeName": "Total Win", "PoolContribution": 0.0 } } Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y Data Object Y Property Type Compulsory Description TournamentID String Y TournamentName String Y StartDate DateTime Y EndDate DateTime Y

Seamless Wallet API v 1.28 2024 Page | 23 5.4. Get Tournament Rank Request POST {api-url}/tournament-rank Content-Type: application/json {"AppID":"AppID","TournamentID":"xeahz7p7oag51","PageIndex":0,"Size":20,"Timestamp":"16256 40447662","Hash":"4492ab519ea0038e2651ea40abc236a5"} Property Type Compulsory Description AppID String Y TournamentID String Y PageIndex Integer Y Size Integer Y Hash String Y Timestamp Long Y UNIX timestamp Description String Y Status String Y CurrencyCode String Y Cost Decimal Y RequiredTicket Integer Y ImageLink String Y ImageLinkSmall String Y Type String Y GameCode String Y PrizePool Decimal Y NoOfSpins Integer Y TypeDescription String Y TypeName String Y PoolContribution Decimal Y Prize Array Y Property Type Compulsory Description PrizeOCode String Y Amount Decimal Y Qty Integer Y Position Integer Y Ticket Integer Y Points Long Y

Seamless Wallet API v 1.28 2024 Page | 24 Response { "Error": "0", "Description": "OK", "Data": [ { "Username": "0000000A012", "DisplayName": "Tester", "CurrencyCode": "MYR", "Chance": 40770, "Order": 1, "PrizeName": "First Prize", "WinningAmount": 10000, "IsWinner": true, "Description": null, "JoinTime": "2021-06-18T16:23:23.242743", "Tickets": 0 }, …………………………………… ] } Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y Data Array Y Property Type Compulsory Description Username String Y DisplayName String Y CurrencyCode String Y Chance Integer Y Order Integer Y PrizeName String Y WinningAmount Decimal Y IsWinner Boolean Y Description String Y JoinTime Datetime Y Tickets Integer Y

Seamless Wallet API v 1.28 2024 Page | 25 5.5. Get Tournament Tickets Request POST {api-url}/tournament-ticket Content-Type: application/json {"AppID":"AppID","Username":"Username","Timestamp":"1625640447662","Hash":"4492ab519ea 0038e2651ea40abc236a5"} Property Type Compulsory Description AppID String Y Username String Y Hash String Y Timestamp Long Y UNIX timestamp Response { "Error": "0", "Description": "OK", "Data": [ { "Status": "Used", "ValidFrom": "2021-08-02T12:36:34.789424", "ExpireAt": "2021-09-01T12:36:34.789424" }, …………………………………… ] } Property Type Compulsory Description Error String Y Success = “0” Failure = “1” Description String Y Data Array Y Property Type Compulsory Description Status String Y ValidFrom Datetime Y ExpireAt Datetime Y

Seamless Wallet API v 1.28 2024 Page | 26 6. Operator Integration APIs 6.1. Authenticate Token Request POST {operator-integration-api-url}/authenticate-token Content-Type: application/x-www-form-urlencoded Request Content: appid=seamless&hash=1f4f020546a137427f4de3773dc04fc3&ip=128.199.64.190&timestamp=155 2970614889&token=xm6rhmjciweuq Property Type Compulsory Description token String Y Operator unique identifier of player session ip String Y Player’s IP timestamp Long Y UNIX timestamp appid String Y hash String Y Response: Content-Type: application/json { "Username": "DEMO", (4 to 32 alphanumeric characters and case-insensitive) "Balance": 100.01, "Message": "Success", "Status": 0 } 6.2. Authenticate Username/Password (Optional) Request POST {operator-integration-api-url}/authenticate Content-Type: application/x-www-form-urlencoded Request Content: appid=seamless&hash=30795ed16135a0eb7711229c95670924&ip=128.199.64.190&password=abc def&timestamp=1552976364273&username=DEMO Property Type Compulsory Description username String Y Player username (4 to 32 alphanumeric characters and case-insensitive) password String Y Player password ip String Y Player’s IP

Seamless Wallet API v 1.28 2024 Page | 27 timestamp Long Y UNIX timestamp appid String Y hash String Y Response: Content-Type: application/json { "Token": "xm6rhmjciweuq", (Token has max length 64 characters) "Balance": 100.05, "Message": "Success", "Status": 0 } 6.3. Balance Request POST {operator-integration-api-url}/balance Content-Type: application/x-www-form-urlencoded Request Content: appid=seamless&hash=45a8710d5db0aeabf4f3e3d881f732f8&timestamp=1554370334626&userna me=DEMO Property Type Value Compulsory Description appid String Y hash String Y timestamp Long Y username String Y Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0}

Seamless Wallet API v 1.28 2024 Page | 28 6.4. Bet Request POST {operator-integration-api-url}/bet Content-Type: application/x-www-form-urlencoded Request Content: amount=0.50&appid=seamless&gamecode=zygj7oqga9nck&hash=41399ea6eeedd294fa0dfc0b911 895e7&id=B_Tb5aa0018c11e&roundid=qc9cfdk7u5wca&timestamp=1552970894238&username=D EMO Property Type Value Compulsory Description appid String Y hash String Y id String Y BetID - Unique by member amount Decimal Positive numeric Y username String Y timestamp Long Y gamecode String Y roundid String Y Unique by member Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0} A cancel will be sent if Bet is Timeout. 6.5. Settle Bet Request POST {operator-integration-api-url}/settle-bet Content-Type: application/x-www-form-urlencoded Request Content: amount=1.00&appid=seamless&gamecode=zygj7oqga9nck&hash=ea28cd5801d5914e027d31275f5 670e4&id=S_Tb5aa0018c11f&roundid=qc9cfdk7u5wca&timestamp=1552970900488&username=D EMO&description=slot&type=main Property Type Value Compulsory Description appid String Y hash String Y id String Y SettleID - Unique by member

Seamless Wallet API v 1.28 2024 Page | 29 amount Decimal Positive numeric Y username String Y timestamp Long Y gamecode String Y roundid String Y Unique by member description String Y type String Y Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0} 6.6. Cancel Bet Request POST {operator-integration-api-url}/cancel-bet Content-Type: application/x-www-form-urlencoded Request Content: appid=seamless&gamecode=zygj7oqga9nck&hash=ea28cd5801d5914e027d31275f5670e4&id=C_T b5aa0018c11f&betid=B_Tb5aa0018c11e &roundid=qc9cfdk7u5wca&timestamp=1552970900488&username=DEMO Property Type Value Compulsory Description appid String Y hash String Y id String Y CancelBetID - Unique by member username String Y timestamp Long Y gamecode String Y roundid String Y Unique by member betid String Y Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0}

Seamless Wallet API v 1.28 2024 Page | 30 6.7. Bonus Win Request POST {operator-integration-api-url}/bonus-win Content-Type: application/x-www-form-urlencoded Request Content: amount=1.00&appid=seamless&gamecode=zygj7oqga9nck&hash=ea28cd5801d5914e027d31275f5 670e4&id=Tb5aa0018c11f&roundid=qc9cfdk7u5wca&timestamp=1552970900488&username=DE MO&description=bonus&type=bonus Property Type Value Compulsory Description appid String Y hash String Y id String Y Unique by member amount Decimal Positive numeric Y username String Y timestamp Long Y gamecode String Y roundid String Y Unique by member description String Y type String Y Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0} 6.8. Jackpot Win Request POST {operator-integration-api-url}/jackpot-win Content-Type: application/x-www-form-urlencoded Request Content: amount=1.00&appid=seamless&gamecode=zygj7oqga9nck&hash=ea28cd5801d5914e027d31275f5 670e4&id=Tb5aa0018c11f&roundid=qc9cfdk7u5wca&timestamp=1552970900488&username=DE MO&description=jackpot&type=jackpot Property Type Value Compulsory Description appid String Y hash String Y id String Y Unique by member

Seamless Wallet API v 1.28 2024 Page | 31 amount Decimal Positive numeric Y username String Y timestamp Long Y gamecode String Y Default: qc8y6dypyeboy roundid String Y Unique by member description String Y type String Y Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0} 6.9. Transaction Request POST {operator-integration-api-url}/transaction Content-Type: application/x-www-form-urlencoded Request Content: amount=6.00&appid=seamless&description=Main&endbalance=318.00&gamecode=kk8nqm3cfwtn g&hash=00b319f583ce6b2a26c2df0fe75f0d47&id=xm6qbj99cmfdq&result=4.00&roundid=xm6qbj9 9cmfdq&startbalance=320.00&timestamp=1555474256669&type=Main&username=DEMO Property Type Value Compulsory Description appid String Y hash String Y id String Y Unique by member amount Decimal Positive numeric Y result Decimal Positive numeric Y username String Y timestamp Long Y gamecode String Y roundid String Y Unique by member description String Y type String Y startbalance Decimal Positive numeric Y endbalance Decimal Positive numeric Y Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0}

Seamless Wallet API v 1.28 2024 Page | 32 6.10. Withdraw Request POST {operator-integration-api-url}/withdraw Content-Type: application/x-www-form-urlencoded Request Content: amount=1.00&appid=seamless&hash=ea28cd5801d5914e027d31275f5670e4&id=Tb5aa0018c11f& timestamp=1552970900488&username=DEMO Property Type Value Compulsory Description appid String Y hash String Y id String Y Unique by member amount Decimal Positive numeric Y username String Y timestamp Long Y Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0} 6.11. Deposit Request POST {operator-integration-api-url}/deposit Content-Type: application/x-www-form-urlencoded Request Content: amount=1.00&appid=seamless&hash=ea28cd5801d5914e027d31275f5670e4&id=Tb5aa0018c11f& timestamp=1552970900488&username=DEMO Property Type Value Compulsory Description appid String Y hash String Y id String Y Unique by member amount Decimal Positive numeric Y username String Y timestamp Long Y Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0}

Seamless Wallet API v 1.28 2024 Page | 33 7. Operator Integration Tournament APIs 7.1. Join Tournament Join Tournament is called when the player joins a tournament. Operator is expected to deduct the balance of player and record the transaction Request POST {operator-integration-api-url}/join-tournament Content-Type: application/x-www-form-urlencoded Request Content: amount=10.00&appid=seamless&extendedinfo=%7B%22PoolContribution%22%3A2.00%7D&hash= c58166e6524e28cbdb47037133a8f83a&id=jxeahin3up4q51&timestamp=1625644814173&tournam entid=xeahin3up4q51&username=DEMO Property Type Value Compulsory Description appid String Y hash String Y id String Y Unique by member tournamentid String Y amount Decimal Positive numeric Y username String Y timestamp Long Y extendedinfo String Y - Do not use this property in Hash - Is JSON string. Client can deserialize this value to object if need to consume. For example: JSON.parse(value) Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0}

Seamless Wallet API v 1.28 2024 Page | 34 7.2. Cancel Join Tournament Operator is expected to refund the balance of player (if the balance is deducted when player joins the tournament) and to remove transaction if there is Request POST {operator-integration-api-url}/cancel-join-tournament Content-Type: application/x-www-form-urlencoded Request Content: appid=seamless&extendedinfo=%7B%7D&hash=9bbf0aacc55559c922343588229dd905&id=cxeahin 3up4q51&jointournamentid=jxeahin3up4q51&timestamp=1625645436243&username=DEMO Property Type Value Compulsory Description appid String Y hash String Y id String Y Unique by member jointournamentid String Y username String Y timestamp Long Y extendedinfo String Y - Do not use this property in Hash - Is JSON string. Client can deserialize this value to object if need to consume. For example: JSON.parse(value) Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0}

Seamless Wallet API v 1.28 2024 Page | 35 7.3. Win Tournament Win Tournament is called when the tournament is finished and player wins of the tournament. Operator is expected to add the balance of player and record the transaction Request POST {operator-integration-api-url}/win-tournament Content-Type: application/x-www-form-urlencoded Request Content: amount=5000.00&appid=seamless&extendedinfo=%7B%22PoolContribution%22%3A2.00%7D&has h=c9d19dcb9cea559c3d111c1779002534&id=wxeahin3up4q51&timestamp=1625646194210&tour namentid=xeahin3up4q51&username=DEMO Property Type Value Compulsory Description appid String Y hash String Y id String Y Unique by member tournamentid String Y username String Y amount Decimal Positive numeric Y timestamp Long Y extendedinfo String Y - Do not use this property in Hash - Is JSON string. Client can deserialize this value to object if need to consume. For example: JSON.parse(value) Response: Content-Type: application/json {"Balance":1186.11,"Message":"Success","Status":0}

Seamless Wallet API v 1.28 2024 Page | 36 8. References 8.1. Timestamp The timestamp is used as part of request to verify integrity. If the request is much later than its timestamp, Operator should reject the request. Timestamp is defined as the number of miliseconds elapsed since midnight proleptic Coordinated Universal Time (UTC) of January 1, 1970. Following sample code in C# demonstrating how to get current timestamp: public static readonly DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Local); public static long GetCurrentTimestamp() { return (long)DateTime.UtcNow.Subtract(UnixEpoch).TotalMilliseconds; } 8.2. Hash The provider requested with MD5 encrypted signature. For example, if request is: {"key1": "value1", "key3": "value3", "key2": "value2", "key4": "" } Step 1: Construct raw signature string in query string format and append with secret key. Keys are in lower case and are sorted in alphabetic order. Those key pairs with no value are omitted. The decimal numbers are two places decimal numeric formatted e.g. 1.00 String rawData = key1=value1&key2=value2&key3=value3secretKey Example: AppID: TXA2M Timestamp: 1561025342810 Amount: 1000.0 (or 1000 or 1000.00) ID: xe6jrzgntw1pc Username: DEMO SecretKey: 123456 ==> String rawData = amount=1000.00&appid=TXA2M&id=xe6jrzgntw1pc&timestamp=1561025342810&username=DEMO1234 56 ==> Hash = f38c4df2641a9c40129ae039a9ef8def Step 2: Use secret key with MD5 encryption algorithm to encrypt data. public static string GetMD5Signature( string rawData) { var md5Content = string.Empty;

Seamless Wallet API v 1.28 2024 Page | 37 using (MD5 md5Hash = MD5.Create()) { md5Content = SignatureHelper .GetMd5Hash(md5Hash, rawData); } return md5Content; } private static string GetMd5Hash( MD5 md5Hash, string rawData) { // Convert the input string to a byte array and compute the hash. byte[] data = md5Hash.ComputeHash( Encoding.UTF8.GetBytes(rawData)); // Create a new Stringbuilder to collect the bytes // and create a string. var sBuilder = new StringBuilder (); // Loop through each byte of the hashed data // and format each one as a hexadecimal string. for (int i = 0; i < data.Length; i++) { sBuilder.Append(data[i].ToString( "x2")); } // Return the hexadecimal string. return sBuilder.ToString(); } Note: the signature may contain some special character and it should be converted into escaped representation used for query string. 8.3. Status Code Status Description Applicable APIs 0 Success All 1 IP not allowed All 2 Invalid AppID All 3 Invalid token Authenticate-Token 4 Invalid parameters All 5 Invalid signature All 6 Invalid timestamp All

Seamless Wallet API v 1.28 2024 Page | 38 7 Invalid Username or Password Authenticate 100 Insufficient fund Bet, Withdraw 201 Transaction is being processed All 999 Server under maintenance All 1000 Other All 9. FAQ 1. How "Bet" is associated with "Settle"? A Settle can be for multiple Bet. Bet and Settle are associated by RoundID. 2. When to use the "Bonus Win" API? The Bonus can be thought as Settle without Bet. Third party should add balance to player when receive the event. 3. When to use the "Jackpot Win" API? The Jackpot can be thought as Settle without Bet. Third party should add balance to player when receive the event. 4. Can “Cancel” be received after “Settle”? Yes. There is case that Cancel will be sent after Settle. In this case, the balance should be added back to player. Third party should adjust transaction. 5. When to use the “Withdraw” API ? This API is used for to player transfer money to play game Fish. 6. When to use the “Deposit” API? This API is used for to return money back. 7. When to use the “Transaction” API? This API is used for to send bet detail grouping transaction (Fish) in which the bet detail is not sent when Bet. The API has no impact on the player balance. 8. When to use the “Transaction is being processed ” status code? When Provider sends the first request to Third party but it processed longer than the timeout, Provider will re-send again. a. The first request is being processed -> the second request should be returned with the status 201 b. The first request is completed -> the second request should be returned with the correct status (which makes the call idempotent).