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pimlico_getTokenQuotes

Returns the tentative token exchange rates used by the ERC-20 Paymaster. This method uses 990 credits from your daily balance.

Parameters​

  • Object: An object containing:

    • tokens: (array) - An array of token addresses to get quotes for.

  • entryPoint: (string) - The EntryPoint contract address.

  • chainId: (string) - The chain ID in hexadecimal format.

Returns​

An object containing an array of token quotes. Each quote includes information about the token, exchange rates, and storage slots.

  • quotes: (array) - An array of quote objects, each containing:
    • paymaster: (string) - The address of the paymaster contract.
    • token: (string) - The address of the token.
    • postOpGas: (string) - The amount of gas required for post-operation processing.
    • exchangeRate: (string) - The exchange rate between the token and the native gas token.
    • exchangeRateNativeToUsd: (string) - The exchange rate between the native gas token and USD with 6 decimals of precision.
    • balanceSlot: (string) - The storage slot for the token balance.
    • allowanceSlot: (string) - The storage slot for the token allowance.
warning

If a token in the request input is not supported by the ERC-20 Paymaster, the request will still succeed but it will not be included in the quotes array in the response.

info

exchangeRateNativeToUsd represents the exchange rate between the chain's native gas token and USD with 6 decimals of precision.

Example​

Replace <YOUR-API-KEY> with an API key from your MetaMask Developer dashboard.

Request​

curl https://mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "pimlico_getTokenQuotes",
    "params": [
      {
        "tokens": [
          "0x6b175474e89094c44da98b954eedeac495271d0f",
          "0x2260fac5e5542a773aa44fbcfedf7c193bc2c599",
          "0x514910771af9ca656af840dff83e8264ecf986ca"
        ]
      },
      "0x0000000071727De22E5E9d8BAf0edAc6f37da032",
      "0x1"
    ],
    "id": 1
  }'

Response​

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "quotes": [
      {
        "paymaster": "0x0000000000000039cd5e8aE05257CE51C473ddd1",
        "token": "0x6B175474E89094C44Da98b954EedeAC495271d0F",
        "postOpGas": "0xa7f8",
        "exchangeRate": "0xe9d61943a68eaf17e8",
        "exchangeRateNativeToUsd": "0xe9e52828",
        "balanceSlot": "0x2",
        "allowanceSlot": "0x3"
      }
    ]
  }
}
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