Roundhouse

Arbitrum One Onchain Data

New trading pools created on Arbitrum One in the last N minutes on Uniswap v4, Uniswap v3: both tokens with symbol, name and decimals, fee tier, v4 hooks, whether it pairs with ETH, WETH or USDC, and quote liquidity where readable. Unvetted: many new pools are spam.

TradingLiveeip155:8453Exactvia cdp
https://ca-tax-api-mainnet.lxtap.workers.dev/arbitrum/new-pools
ArbitrumOnchainerc20TokenWallet
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 4 snapshots so far.
$2.05
Verified settled volume
276 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-23 06:43Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x2ECB9E1fcca7A62758c679F11bC3241466d181d8

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.

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x2ECB…181d8. The signed payment is good for 5 minutes.

Paid to
0x2ECB…181d8
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x2ECB9E1fcca7A62758c679F11bC3241466d181d8",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "minutes": "60"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "chain": "arbitrum",
          "count": 4,
          "notes": "New pools are unvetted: many are spam or scams. quoteLiquidity is the WETH/WPOL or USDC a v3 or Solidly-style pool held when read; null for Uniswap v4 (liquidity sits in the shared PoolManager) or whe… (240 chars, truncated in this example)",
          "pools": [
            {
              "tx": "0xc6816fa3894709b00b0182974c1484c587876aea3c63b6379d8d6aa461f1915a",
              "dex": "uniswap-v4",
              "block": 517275236,
              "hooks": null,
              "poolId": "0x986c327fee60bfe22037e8409ded796f55765ab250dfdc2a142f60324515884a",
              "token0": {
                "name": "LUSD Stablecoin",
                "symbol": "LUSD",
                "address": "0x93b346b6BC2548dA6A1E7d98E9a421B42541425b",
                "decimals": 18
              },
              "token1": {
                "name": "USD Coin",
                "symbol": "USDC",
                "address": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
                "decimals": 6
              },
              "approxTime": "2026-10-22T16:18:12.250Z",
              "feeTierBps": 25,
              "pairedWith": "USDC",
              "quoteLiquidity": null
            },
            {
              "tx": "0x83b660f122a22f81d4e1ec0dac145d0322c6a5e8034266b091db0b68f8c7baf4",
              "dex": "uniswap-v4",
              "block": 517272291,
              "hooks": "0x561Ae0C8d4f3AeeaeB92Fa892281A4dA97De0AA0",
              "poolId": "0x56774fce67507073d262723c4f339ddcb8b6a1433505d212d8ba104f8b5c36fd",
              "token0": {
                "name": "Perp City Accounting Token",
                "symbol": "PCAT",
                "address": "0x3A72126d5Cc7ac00FE2E4773AC2d98D6eb9ED1cb",
                "decimals": 6
              },
              "token1": {
                "name": "Perp City Accounting Token",
                "symbol": "PCAT",
                "address": "0xB3027eaA91d0665f192BC206Fd3931AeEa4342ce",
                "decimals": 6
              },
              "approxTime": "2026-10-22T16:05:56.000Z",
              "feeTierBps": 0,
              "pairedWith": null,
              "quoteLiquidity": null
            },
            {
              "tx": "0x9f385fe61b60f4f561de15e454fff23ddbeb674f52bc645a4b98e4c7e3cd3929",
              "dex": "uniswap-v4",
              "block": 517270348,
              "hooks": null,
              "poolId": "0x51a26e9c58b35d343de170c6ecb76c4438c3e5e954367f2605009aa0b16d9681",
              "token0": {
                "name": "native ETH",
                "symbol": "ETH",
                "address": "0x0000000000000000000000000000000000000000",
                "decimals": 18
              },
              "token1": {
                "name": "Tesla (Reality Tokenized)",
                "symbol": "rTSLA",
                "address": "0xf912911C9c8D5131929c758e66e6dc54e65cF3ba",
                "decimals": 18
              },
              "approxTime": "2026-10-22T15:57:50.250Z",
              "feeTierBps": 90,
              "pairedWith": "ETH",
              "quoteLiquidity": null
            },
            {
              "tx": "0xf2652df6c9c073590da90d4885a7e90c62c2ee878b8531c414bd48f3f538db35",
              "dex": "uniswap-v3",
              "pool": "0xA9B8F0211e576F76e4Cd84819B8BF56E8f15905C",
              "block": 517270093,
              "token0": {
                "name": "Enhanced ETH Long Short Momentum",
                "symbol": "OPSETH",
                "address": "0x1aadbe2A6C1cacb0317aC6807cD53d75592921C4",
                "decimals": 18
              },
              "token1": {
                "name": "USD Coin",
                "symbol": "USDC",
                "address": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
                "decimals": 6
              },
              "approxTime": "2026-10-22T15:56:46.500Z",
              "feeTierBps": 30,
              "pairedWith": "USDC",
              "quoteLiquidity": 0
            }
          ],
          "window": {
            "minutes": 50,
            "toBlock": 517276255,
            "fromBlock": 517264255,
            "requestedMinutes": 60
          },
          "sources": [
            "uniswap-v4",
            "uniswap-v3"
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [],
              "properties": {
                "limit": {
                  "type": "string",
                  "pattern": "^\\d{1,2}$",
                  "description": "Max pools listed, newest first, 1 to 50, default 25"
                },
                "minutes": {
                  "type": "string",
                  "pattern": "^\\d{1,3}$",
                  "description": "Look-back window in minutes; 5 to 240, default 60 (capped at 12,000 blocks, about 50 minutes on Arbitrum)"
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-23 06:43Z
Last indexed by Roundhouse
2026-10-26 17:20Z
Last enriched (probe, favicon, geo)
2026-10-22 23:16Z
x402 version
2
Max timeout
300s
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. 4 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 Arbitrum One Onchain Data 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=Arbitrum%20One%20Onchain%20Data'
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://ca-tax-api-mainnet.lxtap.workers.dev/arbitrum/new-pools, 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.