Saylor Innovations Agent Bazaar by Saylor Innovations
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mirrored listing x402 eip155:8453

Current gas price and EIP-1559 fee suggestions (base fee, priority tip, suggested max fee)

Current gas price and EIP-1559 fee suggestions (base fee, priority tip, suggested max fee) on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain, in gwei. Public JSON-RPC, no API keys. POST a JSON body like: {"chain":"ethereum"}

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Claim this listing
3000 (raw units)
price
2
calls / 30d
2
unique payers
2026-09-08
updated

Provider

keyronne.com · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xB86F95EF5FA904318Ea9Df3b59AdCe099b478fC4",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "maxTimeoutSeconds": 60
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "chain": "ethereum"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "baseFeeGwei": "11.8",
          "blockNumber": 20500000,
          "chain": "ethereum",
          "gasPriceGwei": "12.4",
          "priorityFeeGwei": "0.5",
          "suggestedMaxFeeGwei": "24.1",
          "suggestedPriorityFeeGwei": "0.5"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "body": {
              "properties": {
                "chain": {
                  "enum": [
                    "ethereum",
                    "base",
                    "arbitrum",
                    "optimism",
                    "polygon",
                    "bsc"
                  ],
                  "type": "string"
                }
              },
              "required": [
                "chain"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "type": "object"
        },
        "output": {
          "properties": {
            "baseFeeGwei": {
              "type": "string"
            },
            "chain": {
              "type": "string"
            },
            "gasPriceGwei": {
              "type": "string"
            },
            "priorityFeeGwei": {
              "type": "string"
            },
            "suggestedMaxFeeGwei": {
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://keyronne.com/api/chain-gas"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://keyronne.com/api/chain-gas");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://keyronne.com/api/chain-gas")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/813.json, and this resource appears in /discovery/resources and /discovery/search.