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API Endpoint Overview

Endpoint Method Description
/v1/private/user/nonce/generate POST Generate nonce for login
/v1/private/user/login/dex POST User login to get access token
/v1/private/token/upload POST Upload token image
/v1/private/token/create POST Create token and get signature parameters

Complete API Flow

1. Get Nonce

Endpoint: https://four.meme/meme-api/v1/private/user/nonce/generate
Method: POST
Parameters:

{
  "accountAddress": "user wallet address",
  "verifyType": "LOGIN",
  "networkCode": "BSC"
}

Response:

{
  "code": "0",
  "data": "generated nonce value"
}

2. User Login

Endpoint: https://four.meme/meme-api/v1/private/user/login/dex
Method: POST
Parameters:

{
  "region": "WEB",
  "langType": "EN",
  "loginIp": "",
  "inviteCode": "",
  "verifyInfo": {
    "address": "user wallet address",
    "networkCode": "BSC",
    "signature": "signature of 'You are sign in Meme {nonce}' signed with private key",
    "verifyType": "LOGIN"
  },
  "walletName": "MetaMask"
}

Response:

{
  "code": "0",
  "data": "access_token"
}

3. Upload Token Image

Endpoint: https://four.meme/meme-api/v1/private/token/upload
Method: POST
Headers:

Content-Type: multipart/form-data
meme-web-access: {access_token}

Parameters:

  • file: Image file data (supports jpeg, png, gif, bmp, webp formats)

Response:

{
  "code": "0",
  "data": "uploaded image URL"
}

4. Create Token

Endpoint: https://four.meme/meme-api/v1/private/token/create
Method: POST
Headers:

meme-web-access: {access_token}

Parameter Explanation (Distinguishing Fixed and Customizable Parameters)

Customizable Parameters

Parameter Description Example Value Limitations
name Token name "RELEASE" Customizable
shortName Token symbol/ticker "RELS" Customizable
desc Token description "RELEASE DESC" Customizable
imgUrl Token image URL "https://static.four.meme/market/..." Must be uploaded to the platform
launchTime Launch timestamp 1740708849097 Customizable
label Token category "AI" Must be one of the platform-supported categories: Meme/AI/Defi/Games/Infra/De-Sci/Social/Depin/Charity/Others
lpTradingFee Trading fee rate 0.0025 Fixed as 0.0025
webUrl Project website "https://example.com" Customizable
twitterUrl Project Twitter "https://x.com/example" Customizable
telegramUrl Project Telegram "https://telegram.com/example" Customizable
preSale Presale amount "0.1" Pre-purchased BNB amount by the creator; "0" if not purchased
onlyMPC Binance MPC Wallet trading mode false Whether to create a token that can ONLY be traded using the Binance MPC Wallet

Fixed Parameters (Cannot be Adjusted or Customized by Thirdparties)

Parameter Fixed Value Description
totalSupply 1000000000 Total token supply is fixed at 1 billion
raisedAmount 24 Raised amount is fixed at 24 BNB
saleRate 0.8 Sale ratio is fixed at 80%
reserveRate 0 Reserved ratio is fixed at 0
funGroup false Fixed parameter
clickFun false Fixed parameter
symbol "BNB" Fixed use of BNB as base currency

Fixed Parameters for raisedToken. Different raised token configs can be queried by https://four.meme/meme-api/v1/public/config (Cannot modify internal params)

"raisedToken": {
  "symbol": "BNB",
  "nativeSymbol": "BNB",
  "symbolAddress": "0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c",
  "deployCost": "0",
  "buyFee": "0.01",
  "sellFee": "0.01",
  "minTradeFee": "0",
  "b0Amount": "8",
  "totalBAmount": "24",
  "totalAmount": "1000000000",
  "logoUrl": "https://static.four.meme/market/68b871b6-96f7-408c-b8d0-388d804b34275092658264263839640.png",
  "tradeLevel": ["0.1", "0.5", "1"],
  "status": "PUBLISH",
  "buyTokenLink": "https://pancakeswap.finance/swap",
  "reservedNumber": 10,
  "saleRate": "0.8",
  "networkCode": "BSC",
  "platform": "MEME"
}

Blockchain Interaction

After obtaining the API signature, you need to call the chain contract TokenManager2's createToken method:

TokenManager2 contract = TokenManager2.load(tokenManagerAddress, web3j, credentials, gasProvider);
TransactionReceipt receipt = contract.createToken(createArg, sign).send();

Where:

  • createArg: The createArg returned by the API converted into byte array
  • sign: The signature returned by the API converted into byte array

Notes

  1. Token creation requires meeting the minimum BNB balance requirement.

  2. Images must be uploaded to the four.meme platform.

  3. There are certain creation fees for creating tokens (which are currently free).

  4. Most technical parameters are fixed and cannot be adjusted (including total supply, raised amount, sale ratio, etc.).

  5. Only display information like token name, symbol, description, and image can be customized.

  6. The token label must be one of the platform-supported categories.

  7. The trading fee rate can only be 0.0025.

  8. Binance MPC Wallet trading mode means the token can ONLY be traded using the Binance MPC Wallet(Binance Wallet App or https://web3.binance.com). It can't be traded on four.meme website or any other third-party platform.

With the above API flow, users can complete the entire process of logging in and creating tokens on the four.meme platform, but they should note that most technical parameters are preset and fixed by the platform.

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