Roundhouse

Ethereum Onchain Data

New trading pools created on Ethereum 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://onchaincheck.dev/eth/new-pools
EthereumOnchainerc20TokenWallet
Settlements · 30d
276
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$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 2026-10-24 06:58Z
—
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": "eth",
          "count": 25,
          "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": "0x4b874f8e12b216a2bbb099a7baf6b31b1248f08cc2d80082d98105972051cba2",
              "dex": "uniswap-v4",
              "block": 26249301,
              "hooks": "0x322dcEc4958C14e021A9F1cD49DF11b9457968cC",
              "poolId": "0x450507fb7349adf277344cccf43290294628041ae7dab827378ea4a4bfe7cc55",
              "token0": {
                "name": "Wrapped Ether",
                "symbol": "WETH",
                "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
                "decimals": 18
              },
              "token1": {
                "name": "Believe",
                "symbol": "BELIEVE",
                "address": "0xcfe4fa8b8131453F71F8a14dd6Aaf6dfD0dBd2D2",
                "decimals": 18
              },
              "approxTime": "2026-10-22T16:17:59.000Z",
              "feeTierBps": 0,
              "pairedWith": "WETH",
              "quoteLiquidity": null
            },
            {
              "tx": "0xdab16b0588065d90856d3eb1e118e2845c30e93eac19af775580211022b1241e",
              "dex": "uniswap-v4",
              "block": 26249300,
              "hooks": null,
              "poolId": "0x088430f87aea61889ff524851ba2b8743fadddb2d598865e6a987e2fb166797d",
              "token0": {
                "name": "native ETH",
                "symbol": "ETH",
                "address": "0x0000000000000000000000000000000000000000",
                "decimals": 18
              },
              "token1": {
                "name": "ETH/BTC Ratio 26 EMA Crossover",
                "symbol": "ETHBTC26EMACO",
                "address": "0xB9FfE0b8Ee2d1Af94202FFED366520300748A4d8",
                "decimals": 18
              },
              "approxTime": "2026-10-22T16:17:47.000Z",
              "feeTierBps": 9000,
              "pairedWith": "ETH",
              "quoteLiquidity": null
            },
            {
              "tx": "0xb0085fe1868d5820078c269edcb9fdaca95005560b116f6787465b761ba3cbcb",
              "dex": "uniswap-v4",
              "block": 26249293,
              "hooks": "0x3935832b3c4B78062C9546F5567e480E414B20cc",
              "poolId": "0x1349e3726b695421ad145f090e79e81da502e8ed41cdf271fe4a8b37602ffbbc",
              "token0": {
                "name": "SwarmCoreIMD",
                "symbol": "CORE",
                "address": "0x0E6Fd4412778064bb8d315948d40Ca63858aa9b3",
                "decimals": 18
              },
              "token1": {
                "name": "Identity.md",
                "symbol": "IMD",
                "address": "0xD34a99Bc0f67aE1bbd63C660e6d0b0dd03E263B7",
                "decimals": 18
              },
              "approxTime": "2026-10-22T16:16:23.000Z",
              "feeTierBps": 0,
              "pairedWith": null,
              "quoteLiquidity": null
            },
            {
              "tx": "0xf30b43dea853c90bf637b3201434b26c742f2a66cb0d0de15b172548fdd1d0e5",
              "dex": "uniswap-v4",
              "block": 26249288,
              "hooks": "0xa01c66C8d5C2E9bBE3500aF3f90Da46dBF5Ac0Cc",
              "poolId": "0xc27215e9f9308feae11acda85e469e15b016db4e4a1d8e3828d4702653f7d22a",
              "token0": {
                "name": "Wrapped Ether",
                "symbol": "WETH",
                "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
                "decimals": 18
              },
              "token1": {
                "name": "Lethe",
                "symbol": "LETHE",
                "address": "0xE5fB5E2195afdc75ce2f8acf855Ab5FcA5fE39dA",
                "decimals": 18
              },
              "approxTime": "2026-10-22T16:15:23.000Z",
              "feeTierBps": 100,
              "pairedWith": "WETH",
              "quoteLiquidity": null
            },
            {
              "tx": "0xe210768d84b43b3961ccce9460350d15c72e42470f21dfe7fc340ae347ef5a8d",
              "dex": "uniswap-v4",
              "block": 26249287,
              "hooks": null,
              "poolId": "0x5f08e378d1437202fb8ec9787caae6c4d428ba80398090a6e4844d0c41978c1e",
              "token0": {
                "name": "Blast",
                "symbol": "BLAST",
                "address": "0x71b9e0FD392713A14FCaB92D9aF7A21F47E3b1Fa",
                "decimals": 18
              },
              "token1": {
                "name": "Tether USD",
                "symbol": "USDT",
                "address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
                "decimals": 6
              },
              "approxTime": "2026-10-22T16:15:11.000Z",
              "feeTierBps": 9095,
              "pairedWith": null,
              "quoteLiquidity": null
            }
          ],
          "window": {
            "minutes": 60,
            "toBlock": 26249323,
            "fromBlock": 26249023
          },
          "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
2026-10-24 06:58Z
Last indexed by Roundhouse
2026-10-26 17:20Z
Last enriched (probe, favicon, geo)
2026-10-24 07:15Z
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 Ethereum 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=Ethereum%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://onchaincheck.dev/eth/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.