Api Endpoint

gas-price-checker

Read the live gas price, EIP-1559 base fee and estimated native-transfer cost on Base, Ethereum, Polygon, Arbitrum or Optimism. No RPC key or account. Try GET /gas-price/sample.

Open interactive test console

Offering

Provider: x402.agentindex.world
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Blockchain And Crypto
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://x402.agentindex.world/gas-price
MIME type: Not provided
First seen: 2026-10-16T01:50:24.663Z
Last seen: 2026-11-01T14:58:16.922Z
Tags: Gas, fee, EVM

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d"
  }
]

Observed health

Status: Healthy
Latest latency: 313 ms
Average latency: 1038 ms
HTTP status: 402
Last checked: 2026-11-02T17:12:29.932Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "method": {
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ],
      "type": "string"
    },
    "queryParams": {
      "properties": {
        "network": {
          "description": "EVM network to read; defaults to Base.",
          "enum": [
            "base",
            "ethereum",
            "polygon",
            "arbitrum",
            "optimism"
          ],
          "type": "string"
        }
      },
      "required": [],
      "type": "object"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "network": {
              "description": "EVM network to read; defaults to Base.",
              "enum": [
                "base",
                "ethereum",
                "polygon",
                "arbitrum",
                "optimism"
              ],
              "type": "string"
            }
          },
          "required": [],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "base_fee": {
              "type": [
                "object",
                "null"
              ]
            },
            "block_number": {
              "type": "integer"
            },
            "gas_price": {
              "type": "object"
            },
            "native_transfer_estimate": {
              "type": "object"
            },
            "network": {
              "type": "object"
            },
            "x402_receipt": {
              "type": "object"
            }
          },
          "required": [
            "network",
            "block_number",
            "gas_price",
            "native_transfer_estimate"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}