Polygon PoS Onchain Data

Name: Polygon PoS Onchain Data
Price: 0.02 USDC
Availability: InStock

Whale and large-trade tracker for an ERC-20 on Polygon PoS: every buy and sell in the last N minutes on the token's deepest WPOL/USDC pools (Uniswap v3), with USD size, side, wallet and transaction for the largest trades, buy/sell volume and net flow, and the wallets that bought or sold the most.

TradingLiveeip155:8453Exactvia cdp

https://ca-tax-api-mainnet.lxtap.workers.dev/polygon/trades

PolygonOnchainerc20TokenWallet

Calls · 30d

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.

$0.020

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 2026-10-22 21:56Z

—

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.

0.02USDC≈ $0.02 USD

on Base · exact scheme

Pay 0.02 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: 20000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x2ECB9E1fcca7A62758c679F11bC3241466d181d8",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "token": "0x53E0bca35eC356BD5ddDFebbD1Fc0fD03FaBad39",
          "minUsd": "100",
          "minutes": "60"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "chain": "polygon",
          "notes": "Trades from the 3 deepest WPOL/USDC pools; other pairs and aggregator-internal routes are not counted. Wallets are transaction senders, looked up for the 40 largest trades.",
          "token": {
            "symbol": "LINK",
            "address": "0x53E0bca35eC356BD5ddDFebbD1Fc0fD03FaBad39",
            "decimals": 18
          },
          "window": {
            "to": "2026-10-22T16:23:24.000Z",
            "from": "2026-10-22T15:23:24.000Z",
            "minutes": 60,
            "toBlock": 95987222,
            "fromBlock": 95985422
          },
          "summary": {
            "buys": 20,
            "sells": 15,
            "trades": 35,
            "netFlowUsd": 145.557,
            "buyVolumeUsd": 455.848,
            "sellVolumeUsd": 310.29,
            "largestTradeUsd": 79.4717
          },
          "nativeUsd": 0.0907291,
          "topBuyers": [
            {
              "netUsd": 90.23,
              "trades": 4,
              "wallet": "0x3f6720364ACF02366a63e5F7106D314D31f688d1",
              "soldUsd": 11.93,
              "boughtUsd": 102.2
            },
            {
              "netUsd": 71.03,
              "trades": 2,
              "wallet": "0x03E7c97adA2FA30752999A859d2d2e9f1881b4C8",
              "soldUsd": 0,
              "boughtUsd": 71.03
            },
            {
              "netUsd": 59.98,
              "trades": 1,
              "wallet": "0x73bE04ABAa96c7D92Db28cD3AEF1539A77775d5b",
              "soldUsd": 0,
              "boughtUsd": 59.98
            },
            {
              "netUsd": 39.05,
              "trades": 1,
              "wallet": "0xEe8411A0AC858a8e2E2Cae069D5d45fa5978bD6d",
              "soldUsd": 0,
              "boughtUsd": 39.05
            },
            {
              "netUsd": 9.84,
              "trades": 1,
              "wallet": "0x9242966990B0B28CaF896e9fbdF048044BC7555e",
              "soldUsd": 0,
              "boughtUsd": 9.84
            }
          ],
          "topSellers": [
            {
              "netUsd": -70.5,
              "trades": 3,
              "wallet": "0xd2b648d4ceD31FB4EF142962C1d2Ea7428977F06",
              "soldUsd": 70.5,
              "boughtUsd": 0
            },
            {
              "netUsd": -37.87,
              "trades": 1,
              "wallet": "0xB9A7f2B5A0290D01188b77F35cEEf046d332a60C",
              "soldUsd": 37.87,
              "boughtUsd": 0
            },
            {
              "netUsd": -29.14,
              "trades": 1,
              "wallet": "0x96d0e9A19627903E24962c2fB8a43C728281CB4f",
              "soldUsd": 29.14,
              "boughtUsd": 0
            },
            {
              "netUsd": -0.412,
              "trades": 1,
              "wallet": "0x03d9964f4D93a24B58c0Fc3a8Df3474b59Ba8557",
              "soldUsd": 0.412,
              "boughtUsd": 0
            }
          ],
          "largeTrades": [],
          "poolsScanned": [
            {
              "dex": "uniswap-v3",
              "pool": "0x79E4240E33C121402dfc9009dE266356c91f241d",
              "pairedWith": "USDC"
            },
            {
              "dex": "uniswap-v3",
              "pool": "0x0A28C2F5E0E8463E047C203F00F649812aE67E4f",
              "pairedWith": "WPOL"
            },
            {
              "dex": "uniswap-v3",
              "pool": "0x98b9162161164De1ED182A0dFA08f5fBf0F733CA",
              "pairedWith": "WPOL"
            }
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "token"
              ],
              "properties": {
                "limit": {
                  "type": "string",
                  "pattern": "^\\d{1,2}$",
                  "description": "Max trades listed, 1 to 40, default 20"
                },
                "token": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}$",
                  "description": "Token contract address on Polygon PoS"
                },
                "minUsd": {
                  "type": "string",
                  "pattern": "^\\d+(\\.\\d+)?$",
                  "description": "Only list trades at least this large in USD, default 1000"
                },
                "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: 2026-10-22 21:56Z
Last indexed by Roundhouse: 2026-10-26 17:30Z
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 Polygon PoS 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=Polygon%20PoS%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/polygon/trades, 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.