Roundhouse

Ethereum Onchain Data

Who is this Ethereum address? Wallet age (first transfer), first funder, contract or EOA, ETH balance and nonce, the latest transfers in and out (native, ERC-20, NFTs), top counterparties by count, and recent large transfers in USD (ETH, WETH, USDC, USDT), from Alchemy's transfer index.

TradingLiveeip155:8453Exactvia cdp
https://ca-tax-api-mainnet.lxtap.workers.dev/eth/wallet-profile
EthereumOnchainerc20TokenWallet
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 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 2026-10-24 05:49Z
—
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": {
          "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "age": {
            "ageDays": 4042.9,
            "firstDirection": "in",
            "firstActivityAt": "2015-09-28T08:24:43.000Z",
            "firstActivityTx": "0x9b629147b75dc0b275d478fa34d97c5d4a26926457540b15a5ce871df36c23fd",
            "firstActivityBlock": 302086
          },
          "chain": "eth",
          "notes": "From Alchemy's transfer index: ETH (including internal), ERC-20, ERC-721 and ERC-1155 transfers, zero-value ones excluded. Activity, counterparties and large transfers cover the newest 100 transfers i… (240 chars, truncated in this example)",
          "account": {
            "kind": "wallet (EOA) with EIP-7702 delegation",
            "nonce": 5969,
            "isContract": false,
            "delegatesTo": "0x5A7FC11397E9a8AD41BF10bf13F22B0a63f96f6d",
            "nativeBalance": "5.773252986299759339",
            "nativeBalanceUsd": 13856.349
          },
          "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
          "activity": {
            "newestAt": "2026-10-22T22:08:47.000Z",
            "byCategory": {
              "erc20": 167,
              "erc721": 7,
              "erc1155": 2,
              "external": 21,
              "internal": 3
            },
            "moreHistory": true,
            "inboundScanned": 100,
            "oldestScannedAt": "2026-07-16T09:03:47.000Z",
            "outboundScanned": 100,
            "transfersScanned": 200
          },
          "nativeUsd": {
            "price": 2400.09,
            "source": "Chainlink ETH/USD",
            "symbol": "ETH",
            "updatedAt": "2026-10-23T05:33:59.000Z"
          },
          "firstFunder": {
            "at": "2015-09-28T08:24:43.000Z",
            "tx": "0x9b629147b75dc0b275d478fa34d97c5d4a26926457540b15a5ce871df36c23fd",
            "asset": "ETH",
            "amount": 0.25,
            "address": "0x1Db3439a222C519ab44bb1144fC28167b4Fa6EE6"
          },
          "largeTransfers": [
            {
              "at": "2026-09-26T05:13:47.000Z",
              "usd": 2400.0939,
              "hash": "0x43273aba0b69d02e177b1b9372d219a1256e61e6be329a489f2b16274bad55a7",
              "asset": "ETH",
              "block": 26059466,
              "token": null,
              "amount": 1,
              "category": "external",
              "direction": "out",
              "counterparty": "0xE731dFadBFf20542E10D09D26Fc71445C70d4232"
            }
          ],
          "recentTransfers": [
            {
              "at": "2026-10-22T22:08:47.000Z",
              "usd": null,
              "hash": "0x84dedfb103bde6514e86f63a61b4f61d00e223eb1c9fffcb540e534b0f352915",
              "asset": null,
              "block": 26251047,
              "token": "0x50a76D644ccD4B3E2cA0169Fe52F0eD0292CeE58",
              "amount": null,
              "category": "erc1155",
              "direction": "in",
              "counterparty": "0x17628F8F3d65e36f3f505795dF2D3bed7C26E5C0"
            },
            {
              "at": "2026-10-22T14:10:59.000Z",
              "usd": null,
              "hash": "0xe14d795ebfe2835e584837fcda4509dc27e223111c5955e9748144a999d8175c",
              "asset": "ZC",
              "block": 26248667,
              "token": "0xe41025A68D37a98ad672431908485Eb2f885A553",
              "amount": 10000000,
              "category": "erc20",
              "direction": "in",
              "counterparty": "0x0000000000000000000000000000000000000000"
            },
            {
              "at": "2026-10-22T07:14:47.000Z",
              "usd": null,
              "hash": "0x4046bbc92e51e8b11c3dff049ddfba1dbae41153b2b57d44c8578b5b6c5ba12e",
              "asset": null,
              "block": 26246595,
              "token": "0x53EDeacdA5167731d830F6e9FC17d365F5070060",
              "amount": null,
              "tokenId": "1617",
              "category": "erc721",
              "direction": "in",
              "counterparty": "0x81f9C853d7CC894F7EF742F62a265a5e9aeeB727"
            },
            {
              "at": "2026-10-22T07:14:11.000Z",
              "usd": null,
              "hash": "0x395bfb51000b790fd1aee8da5197203499aee3dea557ee96cb8dd2084120f964",
              "asset": null,
              "block": 26246592,
              "token": "0x53EDeacdA5167731d830F6e9FC17d365F5070060",
              "amount": null,
              "tokenId": "1598",
              "category": "erc721",
              "direction": "in",
              "counterparty": "0x81f9C853d7CC894F7EF742F62a265a5e9aeeB727"
            },
            {
              "at": "2026-10-22T07:13:47.000Z",
              "usd": null,
              "hash": "0xdac2be32fec346dea79dc0e855c875656d09475848276790f474a8929a31df4e",
              "asset": null,
              "block": 26246590,
              "token": "0x53EDeacdA5167731d830F6e9FC17d365F5070060",
              "amount": null,
              "tokenId": "1594",
              "category": "erc721",
              "direction": "in",
              "counterparty": "0x81f9C853d7CC894F7EF742F62a265a5e9aeeB727"
            }
          ],
          "topCounterparties": [
            {
              "sent": 0,
              "lastAt": "2026-10-22T01:09:59.000Z",
              "address": "0x18Ce40bF88E38ffe57201dADe3cC88A415c2dbCf",
              "received": 22,
              "transfers": 22
            },
            {
              "sent": 14,
              "lastAt": "2026-07-25T17:57:11.000Z",
              "address": "0xF5AfbFb2b9C0267D70c3eab03CDc872941aedBAA",
              "received": 0,
              "transfers": 14
            },
            {
              "sent": 10,
              "lastAt": "2026-08-18T05:17:23.000Z",
              "address": "0x64413fc2A1cBDF27043F7EbaCB36778687b07056",
              "received": 0,
              "transfers": 10
            },
            {
              "sent": 0,
              "lastAt": "2026-10-22T07:14:47.000Z",
              "address": "0x81f9C853d7CC894F7EF742F62a265a5e9aeeB727",
              "received": 5,
              "transfers": 5
            },
            {
              "sent": 0,
              "lastAt": "2026-10-20T08:19:35.000Z",
              "address": "0x7b0d132c6BF845d5a072B6CC9201546F0aF8a044",
              "received": 5,
              "transfers": 5
            }
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "address"
              ],
              "properties": {
                "address": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}$",
                  "description": "Wallet or contract address on Ethereum"
                }
              },
              "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 05:49Z
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

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 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://ca-tax-api-mainnet.lxtap.workers.dev/eth/wallet-profile, 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.