{
  "$schema": "https://evmnow.github.io/contract-metadata/v1/schema.json",
  "chainId": 1,
  "address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
  "includes": [
    "interface:erc20"
  ],
  "meta": {
    "version": 1,
    "lastUpdated": "2026-07-05T00:00:00Z",
    "locale": "en"
  },
  "name": "USD Coin",
  "symbol": "USDC",
  "description": "Circle's fully reserved US-dollar stablecoin — the canonical USDC on Ethereum, redeemable 1:1 for dollars.",
  "about": "## The canonical dollar stablecoin\n\nUSD Coin (USDC) is a fully reserved dollar stablecoin issued by [Circle](https://www.circle.com/usdc). Each USDC is redeemable 1:1 for US dollars held in cash and short-dated US Treasuries, with monthly third-party attestations. USDC uses **6 decimals** — one USDC is 1,000,000 base units.\n\n## Upgradeable, role-based design\n\nThis address is a `FiatTokenProxy` delegating to Circle's `FiatTokenV2_2` implementation, so the token's logic can be upgraded by Circle at any time. Operations are split across Circle-controlled roles:\n\n- **Owner** — replaces the other role holders\n- **Master minter** — authorizes minters and sets their minting allowances\n- **Minters** — mint new USDC as dollars are deposited and burn it on redemption\n- **Pauser** — can halt all transfers, approvals, minting, and burning\n- **Blacklister** — can freeze individual addresses entirely\n- **Rescuer** — can recover ERC-20 tokens accidentally sent to the contract\n\n## Gasless approvals and transfers\n\nUSDC supports **EIP-2612 permit** (signature-based approvals) and **EIP-3009 transfer authorizations** (signature-based transfers), letting relayers submit transactions and pay gas on the signer's behalf. Version 2.2 also accepts EIP-1271 signatures from smart contract wallets via the packed-signature variants. `receiveWithAuthorization` can only be submitted by the payee, which protects payments against front-running.\n\n## Compliance controls\n\nCircle can blacklist addresses — a blacklisted address can no longer send, receive, or approve USDC — and can pause the entire token. These controls exist to comply with legal requirements such as sanctions.",
  "risks": [
    "Circle can blacklist any address, freezing its USDC entirely",
    "Upgradeable proxy — Circle can replace the token's logic at any time",
    "Circle can pause the token, halting all transfers, approvals, and minting",
    "Fiat-backed — value depends on Circle's reserves and redemption process, not onchain collateral"
  ],
  "category": "token",
  "tags": [
    "token",
    "stablecoin",
    "usdc",
    "circle",
    "defi-primitive"
  ],
  "links": [
    {
      "label": "Etherscan",
      "url": "https://etherscan.io/address/0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
    },
    {
      "label": "Implementation (FiatTokenV2_2)",
      "url": "https://etherscan.io/address/0x43506849D7C04F9138D1A2050bbF3A0c054402dd"
    },
    {
      "label": "Circle",
      "url": "https://www.circle.com/usdc"
    },
    {
      "label": "Developer Docs",
      "url": "https://developers.circle.com/stablecoins"
    }
  ],
  "theme": {
    "accent": "#2775ca",
    "accentText": "#ffffff"
  },
  "groups": {
    "erc20": {
      "label": "ERC-20",
      "order": 1
    },
    "gasless": {
      "label": "Gasless Signatures",
      "description": "Signature-based approvals and transfers (EIP-2612 and EIP-3009), typically submitted by relayers.",
      "order": 2
    },
    "minting": {
      "label": "Minting (Circle)",
      "description": "Supply management by Circle-authorized minters.",
      "order": 3
    },
    "compliance": {
      "label": "Compliance (Circle)",
      "order": 4
    },
    "admin": {
      "label": "Administration (Circle)",
      "order": 5
    },
    "info": {
      "label": "Token Info",
      "order": 6
    }
  },
  "actions": {
    "name": {
      "title": "Token Name",
      "description": "The name of the token (USD Coin).",
      "stateMutability": "view",
      "group": "erc20"
    },
    "symbol": {
      "title": "Token Symbol",
      "description": "The token symbol (USDC).",
      "stateMutability": "view",
      "group": "erc20"
    },
    "decimals": {
      "title": "Decimals",
      "description": "Number of decimal places (6 — one USDC is 1,000,000 base units).",
      "stateMutability": "view",
      "group": "erc20"
    },
    "totalSupply": {
      "title": "Total Supply",
      "description": "Total USDC in circulation on Ethereum.",
      "stateMutability": "view",
      "group": "erc20",
      "returns": {
        "_0": {
          "label": "total supply",
          "type": "token-amount"
        }
      }
    },
    "increaseAllowance": {
      "title": "Increase Allowance",
      "description": "Raise a spender's allowance by an increment — avoids the race condition of resetting an existing approval.",
      "group": "erc20",
      "intent": "Increase allowance of {spender} by {increment}",
      "params": {
        "spender": {
          "label": "spender",
          "type": "address"
        },
        "increment": {
          "label": "amount",
          "type": "token-amount"
        }
      },
      "related": [
        "decreaseAllowance"
      ]
    },
    "decreaseAllowance": {
      "title": "Decrease Allowance",
      "description": "Lower a spender's allowance by a decrement. Reverts if it exceeds the current allowance.",
      "group": "erc20",
      "intent": "Decrease allowance of {spender} by {decrement}",
      "params": {
        "spender": {
          "label": "spender",
          "type": "address"
        },
        "decrement": {
          "label": "amount",
          "type": "token-amount"
        }
      },
      "related": [
        "increaseAllowance"
      ]
    },
    "permit": {
      "function": "permit(address,address,uint256,uint256,uint8,bytes32,bytes32)",
      "title": "Permit (EIP-2612)",
      "description": "Apply an approval signed off-chain by the token holder. Anyone may submit it — typically a relayer paying gas.",
      "group": "gasless",
      "intent": "Set allowance of {spender} to {value}, signed by {owner}",
      "params": {
        "owner": {
          "label": "owner",
          "description": "The token holder who signed the approval.",
          "type": "address"
        },
        "spender": {
          "label": "spender",
          "type": "address"
        },
        "value": {
          "label": "amount",
          "type": "token-amount"
        },
        "deadline": {
          "label": "deadline",
          "description": "Unix timestamp after which the signature expires.",
          "type": "timestamp"
        },
        "v": {
          "label": "signature v"
        },
        "r": {
          "label": "signature r"
        },
        "s": {
          "label": "signature s"
        }
      },
      "related": [
        "permit-packed",
        "nonces"
      ]
    },
    "permit-packed": {
      "function": "permit(address,address,uint256,uint256,bytes)",
      "title": "Permit (Packed Signature)",
      "description": "Permit variant taking a packed signature. Also accepts EIP-1271 signatures from smart contract wallets.",
      "group": "gasless",
      "intent": "Set allowance of {spender} to {value}, signed by {owner}",
      "params": {
        "owner": {
          "label": "owner",
          "type": "address"
        },
        "spender": {
          "label": "spender",
          "type": "address"
        },
        "value": {
          "label": "amount",
          "type": "token-amount"
        },
        "deadline": {
          "label": "deadline",
          "type": "timestamp"
        },
        "signature": {
          "label": "signature"
        }
      },
      "related": [
        "permit"
      ]
    },
    "transfer-with-authorization": {
      "function": "transferWithAuthorization(address,address,uint256,uint256,uint256,bytes32,uint8,bytes32,bytes32)",
      "title": "Transfer With Authorization",
      "description": "Execute a USDC transfer signed off-chain by the payer (EIP-3009). Anyone may submit it, e.g. a gasless relayer.",
      "group": "gasless",
      "intent": "Transfer {value} from {from} to {to} via signed authorization",
      "params": {
        "from": {
          "label": "payer",
          "type": "address"
        },
        "to": {
          "label": "recipient",
          "type": "address"
        },
        "value": {
          "label": "amount",
          "type": "token-amount"
        },
        "validAfter": {
          "label": "valid after",
          "description": "Unix time from which the authorization is valid.",
          "type": "timestamp"
        },
        "validBefore": {
          "label": "valid before",
          "description": "Unix time at which the authorization expires.",
          "type": "timestamp"
        },
        "nonce": {
          "label": "nonce",
          "description": "Random 32-byte nonce chosen by the payer (not sequential)."
        },
        "v": {
          "label": "signature v"
        },
        "r": {
          "label": "signature r"
        },
        "s": {
          "label": "signature s"
        }
      },
      "related": [
        "receive-with-authorization",
        "cancel-authorization",
        "authorizationState"
      ]
    },
    "transfer-with-authorization-packed": {
      "function": "transferWithAuthorization(address,address,uint256,uint256,uint256,bytes32,bytes)",
      "title": "Transfer With Authorization (Packed)",
      "description": "Packed-signature variant of Transfer With Authorization. Also accepts EIP-1271 smart wallet signatures.",
      "group": "gasless",
      "intent": "Transfer {value} from {from} to {to} via signed authorization",
      "params": {
        "from": {
          "label": "payer",
          "type": "address"
        },
        "to": {
          "label": "recipient",
          "type": "address"
        },
        "value": {
          "label": "amount",
          "type": "token-amount"
        },
        "validAfter": {
          "label": "valid after",
          "type": "timestamp"
        },
        "validBefore": {
          "label": "valid before",
          "type": "timestamp"
        },
        "nonce": {
          "label": "nonce"
        },
        "signature": {
          "label": "signature"
        }
      },
      "related": [
        "transfer-with-authorization"
      ]
    },
    "receive-with-authorization": {
      "function": "receiveWithAuthorization(address,address,uint256,uint256,uint256,bytes32,uint8,bytes32,bytes32)",
      "title": "Receive With Authorization",
      "description": "Pull a USDC payment signed by the payer (EIP-3009). Only the recipient may submit it, preventing front-running.",
      "group": "gasless",
      "warning": "Only the recipient (to) can submit this transaction.",
      "intent": "Receive {value} from {from} via signed authorization",
      "params": {
        "from": {
          "label": "payer",
          "type": "address"
        },
        "to": {
          "label": "recipient",
          "type": "address"
        },
        "value": {
          "label": "amount",
          "type": "token-amount"
        },
        "validAfter": {
          "label": "valid after",
          "type": "timestamp"
        },
        "validBefore": {
          "label": "valid before",
          "type": "timestamp"
        },
        "nonce": {
          "label": "nonce",
          "description": "Random 32-byte nonce chosen by the payer (not sequential)."
        },
        "v": {
          "label": "signature v"
        },
        "r": {
          "label": "signature r"
        },
        "s": {
          "label": "signature s"
        }
      },
      "related": [
        "transfer-with-authorization",
        "receive-with-authorization-packed"
      ]
    },
    "receive-with-authorization-packed": {
      "function": "receiveWithAuthorization(address,address,uint256,uint256,uint256,bytes32,bytes)",
      "title": "Receive With Authorization (Packed)",
      "description": "Packed-signature variant of Receive With Authorization. Also accepts EIP-1271 smart wallet signatures.",
      "group": "gasless",
      "warning": "Only the recipient (to) can submit this transaction.",
      "intent": "Receive {value} from {from} via signed authorization",
      "params": {
        "from": {
          "label": "payer",
          "type": "address"
        },
        "to": {
          "label": "recipient",
          "type": "address"
        },
        "value": {
          "label": "amount",
          "type": "token-amount"
        },
        "validAfter": {
          "label": "valid after",
          "type": "timestamp"
        },
        "validBefore": {
          "label": "valid before",
          "type": "timestamp"
        },
        "nonce": {
          "label": "nonce"
        },
        "signature": {
          "label": "signature"
        }
      },
      "related": [
        "receive-with-authorization"
      ]
    },
    "cancel-authorization": {
      "function": "cancelAuthorization(address,bytes32,uint8,bytes32,bytes32)",
      "title": "Cancel Authorization",
      "description": "Cancel an unused transfer authorization by its nonce, using a cancellation signed by the authorizer.",
      "group": "gasless",
      "intent": "Cancel authorization {nonce} of {authorizer}",
      "params": {
        "authorizer": {
          "label": "authorizer",
          "type": "address"
        },
        "nonce": {
          "label": "nonce"
        },
        "v": {
          "label": "signature v"
        },
        "r": {
          "label": "signature r"
        },
        "s": {
          "label": "signature s"
        }
      },
      "related": [
        "authorizationState",
        "cancel-authorization-packed"
      ]
    },
    "cancel-authorization-packed": {
      "function": "cancelAuthorization(address,bytes32,bytes)",
      "title": "Cancel Authorization (Packed)",
      "description": "Packed-signature variant of Cancel Authorization. Also accepts EIP-1271 smart wallet signatures.",
      "group": "gasless",
      "intent": "Cancel authorization {nonce} of {authorizer}",
      "params": {
        "authorizer": {
          "label": "authorizer",
          "type": "address"
        },
        "nonce": {
          "label": "nonce"
        },
        "signature": {
          "label": "signature"
        }
      },
      "related": [
        "cancel-authorization"
      ]
    },
    "nonces": {
      "title": "Permit Nonce",
      "description": "The next EIP-2612 permit nonce for an address. Each executed permit increments it.",
      "group": "gasless",
      "params": {
        "owner": {
          "label": "owner",
          "type": "address"
        }
      },
      "returns": {
        "_0": {
          "label": "next nonce"
        }
      }
    },
    "authorizationState": {
      "title": "Authorization State",
      "description": "Whether an EIP-3009 authorization nonce has already been used or canceled.",
      "group": "gasless",
      "params": {
        "authorizer": {
          "label": "authorizer",
          "type": "address"
        },
        "nonce": {
          "label": "nonce"
        }
      },
      "returns": {
        "_0": {
          "label": "used",
          "type": "boolean"
        }
      }
    },
    "mint": {
      "title": "Mint",
      "description": "Create new USDC for a recipient. Restricted to Circle-configured minters, within their minting allowance.",
      "group": "minting",
      "warning": "Minter only — reverts for all other callers.",
      "intent": "Mint {_amount} to {_to}",
      "params": {
        "_to": {
          "label": "recipient",
          "type": "address"
        },
        "_amount": {
          "label": "amount",
          "type": "token-amount"
        }
      },
      "related": [
        "burn",
        "configureMinter",
        "minterAllowance"
      ]
    },
    "burn": {
      "title": "Burn",
      "description": "Destroy USDC from the caller's own balance. Used by Circle minters when dollars are redeemed.",
      "group": "minting",
      "warning": "Minter only.",
      "intent": "Burn {_amount}",
      "params": {
        "_amount": {
          "label": "amount",
          "type": "token-amount"
        }
      },
      "related": [
        "mint"
      ]
    },
    "configureMinter": {
      "title": "Configure Minter",
      "description": "Authorize a minter and set the maximum amount it may mint. Only the master minter.",
      "group": "minting",
      "warning": "Master minter only.",
      "intent": "Allow {minter} to mint up to {minterAllowedAmount}",
      "params": {
        "minter": {
          "label": "minter",
          "type": "address"
        },
        "minterAllowedAmount": {
          "label": "minting allowance",
          "type": "token-amount"
        }
      },
      "related": [
        "removeMinter",
        "minterAllowance",
        "isMinter"
      ]
    },
    "removeMinter": {
      "title": "Remove Minter",
      "description": "Revoke a minter's authorization entirely. Only the master minter.",
      "group": "minting",
      "warning": "Master minter only.",
      "intent": "Remove minter {minter}",
      "params": {
        "minter": {
          "label": "minter",
          "type": "address"
        }
      },
      "related": [
        "configureMinter"
      ]
    },
    "minterAllowance": {
      "title": "Minter Allowance",
      "description": "How much USDC a configured minter may still mint.",
      "group": "minting",
      "params": {
        "minter": {
          "label": "minter",
          "type": "address"
        }
      },
      "returns": {
        "_0": {
          "label": "remaining allowance",
          "type": "token-amount"
        }
      }
    },
    "isMinter": {
      "title": "Is Minter",
      "description": "Check whether an address is a configured minter.",
      "group": "minting",
      "params": {
        "account": {
          "label": "account",
          "type": "address"
        }
      },
      "returns": {
        "_0": {
          "label": "is minter",
          "type": "boolean"
        }
      }
    },
    "masterMinter": {
      "title": "Master Minter",
      "description": "The Circle-controlled address that configures and removes minters.",
      "group": "minting",
      "returns": {
        "_0": {
          "label": "master minter",
          "type": "address"
        }
      }
    },
    "blacklist": {
      "title": "Blacklist Address",
      "description": "Freeze an address — it can no longer send, receive, or approve USDC. Only the blacklister.",
      "group": "compliance",
      "warning": "Blacklister only.",
      "intent": "Blacklist {_account}",
      "params": {
        "_account": {
          "label": "account",
          "type": "address"
        }
      },
      "related": [
        "unBlacklist",
        "isBlacklisted"
      ]
    },
    "unBlacklist": {
      "title": "Remove From Blacklist",
      "description": "Unfreeze a previously blacklisted address. Only the blacklister.",
      "group": "compliance",
      "warning": "Blacklister only.",
      "intent": "Remove {_account} from the blacklist",
      "params": {
        "_account": {
          "label": "account",
          "type": "address"
        }
      },
      "related": [
        "blacklist",
        "isBlacklisted"
      ]
    },
    "isBlacklisted": {
      "title": "Is Blacklisted",
      "description": "Check whether an address is currently frozen by Circle.",
      "group": "compliance",
      "params": {
        "_account": {
          "label": "account",
          "type": "address"
        }
      },
      "returns": {
        "_0": {
          "label": "blacklisted",
          "type": "boolean"
        }
      }
    },
    "blacklister": {
      "title": "Blacklister",
      "description": "The Circle-controlled address that can freeze and unfreeze accounts.",
      "group": "compliance",
      "returns": {
        "_0": {
          "label": "blacklister",
          "type": "address"
        }
      }
    },
    "pause": {
      "title": "Pause",
      "description": "Halt all transfers, approvals, minting, and burning. Only the pauser.",
      "group": "admin",
      "warning": "Pauser only.",
      "related": [
        "unpause",
        "paused"
      ]
    },
    "unpause": {
      "title": "Unpause",
      "description": "Resume normal operation after a pause. Only the pauser.",
      "group": "admin",
      "warning": "Pauser only.",
      "related": [
        "pause",
        "paused"
      ]
    },
    "paused": {
      "title": "Paused",
      "description": "Whether the token is currently paused.",
      "group": "admin",
      "returns": {
        "_0": {
          "label": "paused",
          "type": "boolean"
        }
      }
    },
    "pauser": {
      "title": "Pauser",
      "description": "The Circle-controlled address that can pause and unpause the token.",
      "group": "admin",
      "returns": {
        "_0": {
          "label": "pauser",
          "type": "address"
        }
      }
    },
    "owner": {
      "title": "Owner",
      "description": "The contract owner (Circle). Can replace every role holder.",
      "group": "admin",
      "returns": {
        "_0": {
          "label": "owner",
          "type": "address"
        }
      }
    },
    "transferOwnership": {
      "title": "Transfer Ownership",
      "description": "Transfer the owner role to a new address. Only the owner.",
      "group": "admin",
      "warning": "Owner only.",
      "intent": "Transfer ownership to {newOwner}",
      "params": {
        "newOwner": {
          "label": "new owner",
          "type": "address"
        }
      }
    },
    "updateMasterMinter": {
      "title": "Update Master Minter",
      "description": "Set a new master minter. Only the owner.",
      "group": "admin",
      "warning": "Owner only.",
      "params": {
        "_newMasterMinter": {
          "label": "new master minter",
          "type": "address"
        }
      }
    },
    "updateBlacklister": {
      "title": "Update Blacklister",
      "description": "Set a new blacklister. Only the owner.",
      "group": "admin",
      "warning": "Owner only.",
      "params": {
        "_newBlacklister": {
          "label": "new blacklister",
          "type": "address"
        }
      }
    },
    "updatePauser": {
      "title": "Update Pauser",
      "description": "Set a new pauser. Only the owner.",
      "group": "admin",
      "warning": "Owner only.",
      "params": {
        "_newPauser": {
          "label": "new pauser",
          "type": "address"
        }
      }
    },
    "updateRescuer": {
      "title": "Update Rescuer",
      "description": "Set a new rescuer. Only the owner.",
      "group": "admin",
      "warning": "Owner only.",
      "params": {
        "newRescuer": {
          "label": "new rescuer",
          "type": "address"
        }
      }
    },
    "rescueERC20": {
      "title": "Rescue Tokens",
      "description": "Send ERC-20 tokens stuck in this contract to a recovery address. Only the rescuer.",
      "group": "admin",
      "warning": "Rescuer only.",
      "intent": "Rescue {amount} of {tokenContract} to {to}",
      "params": {
        "tokenContract": {
          "label": "token",
          "type": "address"
        },
        "to": {
          "label": "recipient",
          "type": "address"
        },
        "amount": {
          "label": "amount",
          "description": "Amount of the rescued token.",
          "type": {
            "type": "token-amount",
            "tokenParam": "tokenContract"
          }
        }
      }
    },
    "rescuer": {
      "title": "Rescuer",
      "description": "The Circle-controlled address that can recover tokens sent to this contract.",
      "group": "admin",
      "returns": {
        "_0": {
          "label": "rescuer",
          "type": "address"
        }
      }
    },
    "currency": {
      "title": "Currency",
      "description": "The fiat currency the token represents (USD).",
      "group": "info"
    },
    "version": {
      "title": "Version",
      "description": "The implementation version string (2).",
      "group": "info"
    },
    "DOMAIN_SEPARATOR": {
      "description": "EIP-712 domain separator used for permit and authorization signatures.",
      "group": "info",
      "hidden": true
    },
    "PERMIT_TYPEHASH": {
      "description": "EIP-712 typehash constant for Permit.",
      "group": "info",
      "hidden": true
    },
    "TRANSFER_WITH_AUTHORIZATION_TYPEHASH": {
      "description": "EIP-712 typehash constant for TransferWithAuthorization.",
      "group": "info",
      "hidden": true
    },
    "RECEIVE_WITH_AUTHORIZATION_TYPEHASH": {
      "description": "EIP-712 typehash constant for ReceiveWithAuthorization.",
      "group": "info",
      "hidden": true
    },
    "CANCEL_AUTHORIZATION_TYPEHASH": {
      "description": "EIP-712 typehash constant for CancelAuthorization.",
      "group": "info",
      "hidden": true
    },
    "initialize": {
      "group": "info",
      "hidden": true,
      "deprecated": "USDC is fully initialized — calling this reverts."
    },
    "initializeV2": {
      "group": "info",
      "hidden": true,
      "deprecated": "USDC is fully initialized — calling this reverts."
    },
    "initializeV2_1": {
      "group": "info",
      "hidden": true,
      "deprecated": "USDC is fully initialized — calling this reverts."
    },
    "initializeV2_2": {
      "group": "info",
      "hidden": true,
      "deprecated": "USDC is fully initialized — calling this reverts."
    }
  },
  "messages": {
    "TransferWithAuthorization": {
      "title": "Transfer Authorization (EIP-3009)",
      "description": "Authorize a one-time USDC transfer from your wallet that anyone may submit onchain (e.g. a gasless relayer).",
      "warning": "Once valid, anyone can execute this transfer. Verify the recipient, amount, and validity window before signing.",
      "intent": "Transfer {value} from {from} to {to}",
      "fields": {
        "from": {
          "label": "payer",
          "type": "address"
        },
        "to": {
          "label": "recipient",
          "type": "address"
        },
        "value": {
          "label": "amount",
          "description": "The exact amount that will be transferred.",
          "type": "token-amount"
        },
        "validAfter": {
          "label": "valid after",
          "type": "timestamp"
        },
        "validBefore": {
          "label": "valid before",
          "type": "timestamp"
        },
        "nonce": {
          "label": "nonce",
          "description": "Random 32-byte value; each authorization needs a unique nonce."
        }
      }
    },
    "ReceiveWithAuthorization": {
      "title": "Payment Authorization (EIP-3009)",
      "description": "Authorize a payee to pull a one-time USDC payment. Only the payee can submit it onchain.",
      "warning": "The recipient can withdraw the stated amount from your wallet once the authorization becomes valid.",
      "intent": "Pay {value} to {to}",
      "fields": {
        "from": {
          "label": "payer",
          "type": "address"
        },
        "to": {
          "label": "recipient",
          "type": "address"
        },
        "value": {
          "label": "amount",
          "description": "The exact amount that will be transferred.",
          "type": "token-amount"
        },
        "validAfter": {
          "label": "valid after",
          "type": "timestamp"
        },
        "validBefore": {
          "label": "valid before",
          "type": "timestamp"
        },
        "nonce": {
          "label": "nonce",
          "description": "Random 32-byte value; each authorization needs a unique nonce."
        }
      }
    },
    "CancelAuthorization": {
      "title": "Cancel Authorization (EIP-3009)",
      "description": "Cancel a signed transfer authorization that has not been used yet.",
      "intent": "Cancel authorization {nonce}",
      "fields": {
        "authorizer": {
          "label": "authorizer",
          "type": "address"
        },
        "nonce": {
          "label": "nonce"
        }
      }
    }
  },
  "events": {
    "Mint": {
      "description": "Emitted when a minter creates new USDC.",
      "params": {
        "minter": {
          "label": "minter"
        },
        "to": {
          "label": "recipient"
        },
        "amount": {
          "label": "amount",
          "type": "token-amount"
        }
      }
    },
    "Burn": {
      "description": "Emitted when a minter destroys USDC from its own balance.",
      "params": {
        "burner": {
          "label": "burner"
        },
        "amount": {
          "label": "amount",
          "type": "token-amount"
        }
      }
    },
    "MinterConfigured": {
      "description": "Emitted when a minter is authorized or its minting allowance is updated.",
      "params": {
        "minter": {
          "label": "minter"
        },
        "minterAllowedAmount": {
          "label": "minting allowance",
          "type": "token-amount"
        }
      }
    },
    "MinterRemoved": {
      "description": "Emitted when a minter's authorization is revoked.",
      "params": {
        "oldMinter": {
          "label": "minter"
        }
      }
    },
    "MasterMinterChanged": {
      "description": "Emitted when the master minter role is reassigned.",
      "params": {
        "newMasterMinter": {
          "label": "new master minter"
        }
      }
    },
    "Blacklisted": {
      "description": "Emitted when an address is frozen by the blacklister.",
      "params": {
        "_account": {
          "label": "account"
        }
      }
    },
    "UnBlacklisted": {
      "description": "Emitted when an address is removed from the blacklist.",
      "params": {
        "_account": {
          "label": "account"
        }
      }
    },
    "BlacklisterChanged": {
      "description": "Emitted when the blacklister role is reassigned.",
      "params": {
        "newBlacklister": {
          "label": "new blacklister"
        }
      }
    },
    "Pause": {
      "description": "Emitted when the token is paused — all transfers, approvals, and minting halt."
    },
    "Unpause": {
      "description": "Emitted when the token resumes normal operation."
    },
    "PauserChanged": {
      "description": "Emitted when the pauser role is reassigned.",
      "params": {
        "newAddress": {
          "label": "new pauser"
        }
      }
    },
    "OwnershipTransferred": {
      "description": "Emitted when contract ownership moves to a new address.",
      "params": {
        "previousOwner": {
          "label": "previous owner"
        },
        "newOwner": {
          "label": "new owner"
        }
      }
    },
    "RescuerChanged": {
      "description": "Emitted when the rescuer role is reassigned.",
      "params": {
        "newRescuer": {
          "label": "new rescuer"
        }
      }
    },
    "AuthorizationUsed": {
      "description": "Emitted when an EIP-3009 authorization is executed.",
      "params": {
        "authorizer": {
          "label": "authorizer"
        },
        "nonce": {
          "label": "nonce"
        }
      }
    },
    "AuthorizationCanceled": {
      "description": "Emitted when an unused EIP-3009 authorization is canceled.",
      "params": {
        "authorizer": {
          "label": "authorizer"
        },
        "nonce": {
          "label": "nonce"
        }
      }
    },
    "Upgraded": {
      "description": "Emitted by the proxy when Circle upgrades the implementation contract.",
      "params": {
        "implementation": {
          "label": "implementation",
          "type": "address"
        }
      }
    },
    "AdminChanged": {
      "description": "Emitted by the proxy when its admin address changes.",
      "params": {
        "previousAdmin": {
          "label": "previous admin",
          "type": "address"
        },
        "newAdmin": {
          "label": "new admin",
          "type": "address"
        }
      }
    }
  }
}