api.axiomworks.co.uk

Name: api.axiomworks.co.uk
Price: 0.001 USDC
Availability: InStock

Use this before sending a transaction: live base fee, priority-fee percentiles, suggested EIP-1559 maxFee/maxPriority, block utilisation and USD cost of a transfer/ERC20 transfer/swap (Chainlink price). Base/Ethereum/Arbitrum/Optimism/Polygon. Example: {chain:"base"}. $0.001.

SearchLiveeip155:8453Exactvia cdp

https://api.axiomworks.co.uk/gas

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.

$4.05

Verified settled volume

115 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0010

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-11-05 15:38Z

$0.68

Upstream on-chain volume

53 transactions, checked 2026-11-05 17:16Z

Paid to

0x88b1c747c33A5868A34057D8C57318E5602b3ff6

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

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

{
  "error": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x88b1c747c33A5868A34057D8C57318E5602b3ff6",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://api.axiomworks.co.uk/gas",
      "description": "Use this before sending a transaction: live base fee, priority-fee percentiles, suggested EIP-1559 maxFee/maxPriority, block utilisation and USD cost of a transfer/ERC20 transfer/swap (Chainlink price). Base/Ethereum/Arbitrum/Optimism/Polygon. Example: {chain:\"base\"}. $0.001.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "chain": {
              "enum": [
                "base",
                "ethereum",
                "arbitrum",
                "optimism",
                "polygon"
              ],
              "type": "string",
              "description": "EVM chain (default base)"
            }
          },
          "discoverable": true
        },
        "output": {
          "schema": {
            "type": "object",
            "properties": {
              "est_cost": {
                "type": "object"
              },
              "native_usd": {
                "type": [
                  "number",
                  "null"
                ]
              },
              "base_fee_gwei": {
                "type": "number"
              },
              "priority_fee_gwei": {
                "type": "object"
              },
              "suggested_eip1559": {
                "type": "object"
              }
            }
          },
          "example": {
            "block": 53551759,
            "chain": "base",
            "source": "eth_feeHistory/gasPrice + Chainlink price feed (Ethereum)",
            "chain_id": 8453,
            "est_cost": {
              "swap_180k": {
                "usd": 0.006373,
                "native": 0.00000280351008
              },
              "eth_transfer_21k": {
                "usd": 0.000744,
                "native": 3.27076176e-7
              },
              "erc20_transfer_65k": {
                "usd": 0.002301,
                "native": 0.00000101237864
              }
            },
            "timestamp": "2026-11-05T15:34:25.000Z",
            "native_usd": 2273.205,
            "base_fee_gwei": 0.014575056,
            "gas_price_gwei": 0.015575056,
            "priority_fee_gwei": {
              "p10": 0.000887147,
              "p50": 0.002028694,
              "p90": 0.03,
              "suggested": 0.001
            },
            "suggested_eip1559": {
              "maxFeePerGas_gwei": 0.030150112,
              "maxPriorityFeePerGas_gwei": 0.001
            },
            "block_utilization_pct": 12.5
          }
        }
      },
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 120
    }
  ],
  "x402_v2": "see PAYMENT-REQUIRED header (base64 JSON)",
  "x402Version": 1,
  "example_call": "https://api.axiomworks.co.uk/gas?chain=base",
  "free_preview": "https://api.axiomworks.co.uk/gas?chain=base&preview=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.

0.001USDC≈ $0.001 USD

on Base · exact scheme

Pay 0.001 USDC on Base to 0x88b1…b3ff6. The signed payment is good for 2 minutes.

Paid to: 0x88b1…b3ff6
USD Coin contract: 0x8335…02913
Payment window: 2 minutes
As published: 1000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x88b1c747c33A5868A34057D8C57318E5602b3ff6",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "chain": "base"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "block": 53551759,
          "chain": "base",
          "source": "eth_feeHistory/gasPrice + Chainlink price feed (Ethereum)",
          "chain_id": 8453,
          "est_cost": {
            "swap_180k": {
              "usd": 0.006373,
              "native": 0.00000280351008
            },
            "eth_transfer_21k": {
              "usd": 0.000744,
              "native": 3.27076176e-7
            },
            "erc20_transfer_65k": {
              "usd": 0.002301,
              "native": 0.00000101237864
            }
          },
          "timestamp": "2026-11-05T15:34:25.000Z",
          "native_usd": 2273.205,
          "base_fee_gwei": 0.014575056,
          "gas_price_gwei": 0.015575056,
          "priority_fee_gwei": {
            "p10": 0.000887147,
            "p50": 0.002028694,
            "p90": 0.03,
            "suggested": 0.001
          },
          "suggested_eip1559": {
            "maxFeePerGas_gwei": 0.030150112,
            "maxPriorityFeePerGas_gwei": 0.001
          },
          "block_utilization_pct": 12.5
        }
      }
    },
    "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": {
                  "enum": [
                    "base",
                    "ethereum",
                    "arbitrum",
                    "optimism",
                    "polygon"
                  ],
                  "type": "string",
                  "description": "EVM chain (default base)"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "est_cost": {
                  "type": "object"
                },
                "native_usd": {
                  "type": [
                    "number",
                    "null"
                  ]
                },
                "base_fee_gwei": {
                  "type": "number"
                },
                "priority_fee_gwei": {
                  "type": "object"
                },
                "suggested_eip1559": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-11-05 15:38Z
Last indexed by Roundhouse: 2026-11-08 09:30Z
Last enriched (probe, favicon, geo): 2026-11-05 17:16Z
x402 version: 2
Max timeout: 120s
Liveness probe: HTTP 402

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service api.axiomworks.co.uk and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.axiomworks.co.uk'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://api.axiomworks.co.uk/gas, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.