{
  "opencollection": "1.0.0",
  "info": {
    "name": "Circle Web3 Services (W3S) — Developer-Controlled Wallets NFTs Transactions API",
    "version": "2026-05-23"
  },
  "request": {
    "auth": {
      "type": "bearer",
      "token": "{{bearerToken}}"
    }
  },
  "items": [
    {
      "info": {
        "name": "Transactions",
        "type": "folder"
      },
      "items": [
        {
          "info": {
            "name": "List transactions",
            "type": "http"
          },
          "http": {
            "method": "GET",
            "url": "https://api.circle.com/v1/w3s/transactions"
          },
          "docs": "List transactions"
        },
        {
          "info": {
            "name": "Get transaction",
            "type": "http"
          },
          "http": {
            "method": "GET",
            "url": "https://api.circle.com/v1/w3s/transactions/:id",
            "params": [
              {
                "name": "id",
                "value": "",
                "type": "path",
                "description": "Resource identifier (UUID)."
              }
            ]
          },
          "docs": "Get transaction"
        },
        {
          "info": {
            "name": "Get lowest nonce transaction",
            "type": "http"
          },
          "http": {
            "method": "GET",
            "url": "https://api.circle.com/v1/w3s/transactions/lowestNonceTransaction"
          },
          "docs": "Get lowest nonce transaction"
        },
        {
          "info": {
            "name": "Get fee parameters",
            "type": "http"
          },
          "http": {
            "method": "GET",
            "url": "https://api.circle.com/v1/w3s/developer/transactions/feeParameters"
          },
          "docs": "Get fee parameters"
        },
        {
          "info": {
            "name": "Create a transfer transaction",
            "type": "http"
          },
          "http": {
            "method": "POST",
            "url": "https://api.circle.com/v1/w3s/developer/transactions/transfer"
          },
          "docs": "Create a transfer transaction"
        },
        {
          "info": {
            "name": "Estimate transfer fee",
            "type": "http"
          },
          "http": {
            "method": "POST",
            "url": "https://api.circle.com/v1/w3s/transactions/transfer/estimateFee"
          },
          "docs": "Estimate transfer fee"
        },
        {
          "info": {
            "name": "Estimate contract-execution fee",
            "type": "http"
          },
          "http": {
            "method": "POST",
            "url": "https://api.circle.com/v1/w3s/transactions/contractExecution/estimateFee"
          },
          "docs": "Estimate contract-execution fee"
        },
        {
          "info": {
            "name": "Validate a blockchain address",
            "type": "http"
          },
          "http": {
            "method": "POST",
            "url": "https://api.circle.com/v1/w3s/transactions/validateAddress"
          },
          "docs": "Validate a blockchain address"
        },
        {
          "info": {
            "name": "Create contract-execution transaction",
            "type": "http"
          },
          "http": {
            "method": "POST",
            "url": "https://api.circle.com/v1/w3s/developer/transactions/contractExecution"
          },
          "docs": "Create contract-execution transaction"
        },
        {
          "info": {
            "name": "Create wallet-upgrade transaction",
            "type": "http"
          },
          "http": {
            "method": "POST",
            "url": "https://api.circle.com/v1/w3s/developer/transactions/walletUpgrade"
          },
          "docs": "Create wallet-upgrade transaction"
        },
        {
          "info": {
            "name": "Cancel a transaction",
            "type": "http"
          },
          "http": {
            "method": "POST",
            "url": "https://api.circle.com/v1/w3s/developer/transactions/:id/cancel",
            "params": [
              {
                "name": "id",
                "value": "",
                "type": "path",
                "description": "Resource identifier (UUID)."
              }
            ]
          },
          "docs": "Cancel a transaction"
        },
        {
          "info": {
            "name": "Accelerate a transaction",
            "type": "http"
          },
          "http": {
            "method": "POST",
            "url": "https://api.circle.com/v1/w3s/developer/transactions/:id/accelerate",
            "params": [
              {
                "name": "id",
                "value": "",
                "type": "path",
                "description": "Resource identifier (UUID)."
              }
            ]
          },
          "docs": "Accelerate a transaction"
        }
      ]
    }
  ],
  "bundled": true
}