{
  "x402Version": 2,
  "id": 2182,
  "slug": "2182",
  "resource": "https://base-gas-x402-production.up.railway.app/gas",
  "description": "Live Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for any gas limit.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x0D083590c048A243e24a75E3a7C968145DE25B44",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "5000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "gasLimit": 21000
          },
          "type": "http"
        },
        "output": {
          "example": {
            "baseFeePerGas": "0.012",
            "blockNumber": "12345678",
            "chain": "base-mainnet",
            "chainId": 8453,
            "estimatedTransferCost": {
              "eth": "0.000000294",
              "gasLimit": 21000,
              "gwei": "294"
            },
            "fetchedAt": "2026-06-22T00:00:00.000Z",
            "gasPrice": "0.014",
            "priorityFeePerGas": {
              "high": "0.004",
              "low": "0.001",
              "medium": "0.002"
            }
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "gasLimit": {
                    "default": 21000,
                    "description": "Gas units to price the cost estimate against. Defaults to 21000 (a plain ETH transfer). Use ~65000 for an ERC-20 transfer, ~85000 for an NFT mint, ~180000 for a Uniswap swap, or ~1500000 for a contract deploy.",
                    "maximum": 30000000,
                    "minimum": 21000,
                    "type": "integer"
                  }
                },
                "required": [],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    },
    "builder-code": {
      "info": {
        "a": "bc_lhfd8zad"
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "a": {
            "description": "App builder code",
            "pattern": "^[a-z0-9_]{1,32}$",
            "type": "string"
          },
          "s": {
            "description": "Service builder codes",
            "items": {
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "type": "array"
          },
          "w": {
            "description": "Wallet builder code",
            "pattern": "^[a-z0-9_]{1,32}$",
            "type": "string"
          }
        },
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar",
    "builder-code"
  ],
  "sourceHost": "base-gas-x402-production.up.railway.app",
  "lastUpdated": "2026-09-18T21:00:01.694Z",
  "quality": {
    "calls30d": 713,
    "uniquePayers30d": 10,
    "lastCalledAt": "2026-09-18T20:00:01.63Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "base-gas-x402-production.up.railway.app",
    "manifest_name": "base-gas-x402-production.up.railway.app",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}