Live Gas Price

Recent payments · which agents last used it

Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change. Always read the 402 the endpoint answers with.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xc91cE6291eDC0713ec753BAFBA002506ffb2b95c",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402-agent-store.rileycraig14.workers.dev/chain/gas",
      "description": "Live network gas prices (slow / average / fast, in gwei) for any chain — the pre-transaction read every trading, sniping, and settlement agent makes before sending a tx to size the fee. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free upstream (Blockscout); one paid call instead of running your own RPC.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "chain": "ethereum"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "fast": 0.71,
            "slow": 0.42,
            "unit": "gwei",
            "chain": "ethereum",
            "average": 0.55
          }
        }
      },
      "maxAmountRequired": "20000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402-agent-store.rileycraig14.workers.dev/chain/gas",
    "tags": [
      "onchain",
      "rpc",
      "gas",
      "gas-price",
      "gwei",
      "trading",
      "settlement",
      "crypto",
      "defi",
      "data-feed"
    ],
    "mimeType": "",
    "description": "Live network gas prices (slow / average / fast, in gwei) for any chain — the pre-transaction read every trading, sniping, and settlement agent makes before sending a tx to size the fee. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free upstream (Blockscout); one paid call instead of running your own RPC.",
    "serviceName": "Live Gas Price"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "chain": "ethereum"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "fast": 0.71,
            "slow": 0.42,
            "unit": "gwei",
            "chain": "ethereum",
            "average": 0.55
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "chain": {
                    "type": "string",
                    "description": "base|ethereum|optimism|arbitrum|polygon|gnosis (default ethereum)"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "fast": {
                    "type": "number"
                  },
                  "slow": {
                    "type": "number"
                  },
                  "average": {
                    "type": "number"
                  }
                }
              }
            }
          }
        }
      }
    },
    "card_payment": {
      "note": "Card checkout is an alternative offer; x402 payment is still required for this API response.",
      "offer": "Instant AI answer",
      "price": "0.99 USD once",
      "checkout": "https://x402-agent-store.rileycraig14.workers.dev/ask",
      "fulfillment": "Answer appears immediately after Stripe confirms payment",
      "same_resource": false
    },
    "a2a_negotiation": {
      "method": "POST",
      "message": "Hey agent! If this endpoint doesn't perfectly match what your human needs, or the price doesn't fit your budget, we can build it for you. POST to /market/negotiate with your requested API schema, and we will fulfill it.",
      "endpoint": "https://store.agentexchange.work/market/negotiate"
    }
  },
  "x402Version": 1
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying: a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xc91cE6291eDC0713ec753BAFBA002506ffb2b95c",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
    },
    "payTo": "2147pBT4LxoszjvLeGRxyVzpRnMi986VH3FAoprSs8Ez",
    "amount": "1000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "chain": "ethereum"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "fast": 0.71,
          "slow": 0.42,
          "unit": "gwei",
          "chain": "ethereum",
          "average": 0.55
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "chain": {
                  "type": "string",
                  "description": "base|ethereum|optimism|arbitrum|polygon|gnosis (default ethereum)"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "fast": {
                  "type": "number"
                },
                "slow": {
                  "type": "number"
                },
                "average": {
                  "type": "number"
                }
              }
            }
          }
        }
      }
    }
  },
  "a2a_negotiation": {
    "method": "POST",
    "message": "Hey agent! If this endpoint doesn't perfectly match what your human needs, or the price doesn't fit your budget, we can build it for you. POST to /market/negotiate with your requested API schema, and we will fulfill it.",
    "endpoint": "https://store.agentexchange.work/market/negotiate"
  }
}

Provenance

Seen in the source catalog

2026-07-01 04:49Z

Last indexed by Roundhouse

2026-07-30 11:30Z

Last enriched (probe, favicon, geo)

2026-09-25 00:45Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402