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Polygon PoS Wallet Profile
x402
Polygon PoS Wallet Profile is a paid API for AI agents from onchaincheck.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Returns a comprehensive onchain profile for a Polygon PoS address including wallet age, first funder, EOA/contract classification, POL balance, nonce, recent transfers, top counterparties, and large USD transfers.
Price / call$0.01
Success—
StatusUnknown
How this service works
Who is this Polygon PoS address? Wallet age (first transfer), first funder, contract or EOA, POL balance and nonce, the latest transfers in and out (native, ERC-20, NFTs), top counterparties by count, and recent large transfers in USD (POL, WPOL, USDC, USDT), from Alchemy's transfer index.
Output
Returns a JSON object containing: wallet age (first activity date, age in days, first transaction hash), account classification (EOA vs contract, nonce), native POL balance and its USD equivalent via Chainlink price feed, first funder details (address, asset, amount, timestamp), a breakdown of recent activity by category (ERC-20, ERC-721, ERC-1155, external, internal), a list of recent transfers with counterparty addresses and amounts, and large transfers denominated in USD for POL, WPOL, USDC, and USDT — all sourced from Alchemy's transfer index covering up to the newest 100 inbound and 100 outbound transfers.
Example use cases
Due diligence on a new counterparty
“Before I send funds to this Polygon address 0x1702f2d0df7c99011a690461c34e51BD81cbab48, can you check how old the wallet is, who first funded it, whether it's a contract or a real wallet, and show me its recent transfer history?”
Investigating an unknown airdrop sender
“I just received tokens from 0x18a3362E9f4D99050934d35b0C1F7903389D24cC on Polygon — can you tell me what that address is, when it was first active, and who its most frequent counterparties are?”
Portfolio wallet activity snapshot
“Give me a full activity snapshot for my Polygon wallet 0x774113aA6f1080898Bcd74faC1957D379a6d8841 — current POL balance, nonce, recent inbound and outbound transfers, and any large USD-value transactions.”
Technical details
Endpoint
GEThttps://onchaincheck.dev/polygon/wallet-profile?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a rich, multi-dimensional profile of a Polygon PoS address in a single call — combining wallet age, funding origin, account type, native balance, and recent transfer history. It is preferable to raw RPC calls when you need pre-aggregated transfer categorization (ERC-20/721/1155/external/internal) and USD-denominated large transfer detection without writing custom indexing logic. Use it for due diligence, counterparty research, fraud investigation, or wallet analytics on Polygon PoS specifically. For Arbitrum or Base addresses, use the sibling endpoints on the same provider.
Side effects
- Invalid address format returns a 400 error — address must match ^0x[0-9a-fA-F]{40}$
- Address with no onchain history returns empty or minimal fields (age, activity may be null)
- Alchemy transfer index may not include all historical transfers for very old or highly active wallets; moreHistory flag indicates truncation
- USD price data from Chainlink may be stale if the oracle hasn't updated recently
- Payment failure (x402) if USDC balance is insufficient — endpoint costs $0.01 per call
- Contract addresses return isContract:true but transfer history scope may differ from EOA wallets
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"age": {
"ageDays": 2059.3,
"firstDirection": "in",
"firstActivityAt": "2021-03-03T23:43:11.000Z",
"firstActivityTx": "0xa4f706c9dc0fd5c905f204f40c463cbac0285fcbee65605b358ea8f875154574",
"firstActivityBlock": 11572129
},
"chain": "polygon",
"notes": "From Alchemy's transfer index: POL (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) or empty address",
"nonce": 1,
"isContract": false,
"nativeBalance": "592.719767156691654977",
"nativeBalanceUsd": 54.619073
},
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"activity": {
"newestAt": "2026-10-21T01:55:09.000Z",
"byCategory": {
"erc20": 154,
"erc721": 1,
"erc1155": 8,
"external": 33,
"internal": 4
},
"moreHistory": true,
"inboundScanned": 100,
"oldestScannedAt": "2025-07-11T05:20:45.000Z",
"outboundScanned": 100,
"transfersScanned": 200
},
"nativeUsd": {
"price": 0.0921499,
"source": "Chainlink POL/USD",
"symbol": "POL",
"updatedAt": "2026-10-23T05:45:51.000Z"
},
"firstFunder": {
"at": "2021-05-13T03:33:22.000Z",
"tx": "0xed4d9ac763e2ec2a0ce2fdc0e7176df6eb6a6bf865ca715100f12d2b9b0e1d2d",
"asset": "POLYDOGE",
"amount": 1,
"address": "0x1702f2d0df7c99011a690461c34e51BD81cbab48"
},
"largeTransfers": [],
"recentTransfers": [
{
"at": "2026-10-21T01:55:09.000Z",
"usd": null,
"hash": "0x39d17fa1ee7e97c539f88384a60180398f61619dab23d5c0e356f514c8db0712",
"asset": "USDT",
"block": 95894894,
"token": "0x24Ff7fdd210f3EcF9d6cf0a45E0dE73f51B58817",
"amount": 25000,
"category": "erc20",
"direction": "in",
"counterparty": "0x774113aA6f1080898Bcd74faC1957D379a6d8841"
},
{
"at": "2026-10-14T14:48:37.000Z",
"usd": null,
"hash": "0x074b4c5ee3d523c765ab2ae574f1d51f01e114baa15a9f6e0c8950f55a6d0ec8",
"asset": "GOOSE",
"block": 95522662,
"token": "0xF8A1e42ef8191e81fA301F4193766775bb6F3b8d",
"amount": 139.424435,
"category": "erc20",
"direction": "in",
"counterparty": "0x18a3362E9f4D99050934d35b0C1F7903389D24cC"
},
{
"at": "2026-10-12T20:24:56.000Z",
"usd": 0.000006,
"hash": "0xba3830102d898ae5d8736324dc33f726f2b4f4fc2d20c11b3b9a3a5aa111bb78",
"asset": "USDT",
"block": 95420937,
"token": "0xc2132D05D31c914a87C6611C10748AEb04B58e8F",
"amount": 0.000006,
"category": "erc20",
"direction": "in",
"counterparty": "0xfE17E720F36c3D1FFDE5bfbeDeaC2C17F19Ef2b0"
},
{
"at": "2026-10-09T07:03:39.000Z",
"usd": null,
"hash": "0xec4829bd705a1132d92b32c7bc06330f9fa48ca80d2d903c755dc41857fc66dd",
"asset": "XCOIN",
"block": 95216133,
"token": "0x6aC618D9585c68bA6EbF6251C2666AbDA480100B",
"amount": 1317.973005,
"category": "erc20",
"direction": "in",
"counterparty": "0x9D05df8F5fdDB5AD2cBef7A6119AcC78D9D60501"
},
{
"at": "2026-10-08T04:04:32.000Z",
"usd": null,
"hash": "0xa581921631bcea1b1ffc20846cfa1920f7ad2e107e21d8af35818bfcceb11063",
"asset": "Apple",
"block": 95151382,
"token": "0x3cBFcd1CC5016aB6AEe067c309065cDF077e3e67",
"amount": 10000000,
"category": "erc20",
"direction": "in",
"counterparty": "0x4FC7478CC5cD7627c3E5f2D784947Ad7117D353F"
}
],
"topCounterparties": [
{
"sent": 0,
"lastAt": "2026-07-13T10:45:13.000Z",
"address": "0xe3d4Fe4F5623FfC99de43bd0E2Dc58F1C188E422",
"received": 15,
"transfers": 15
},
{
"sent": 0,
"lastAt": "2026-07-15T01:44:58.000Z",
"address": "0x58C4a1F319297EC9c398A0F3a3b64AF5a18b5C35",
"received": 11,
"transfers": 11
},
{
"sent": 0,
"lastAt": "2026-10-03T18:20:06.000Z",
"address": "0x75dD23ba3BA67f9663CbF6F9bdc7aB4923dD91D7",
"received": 8,
"transfers": 8
},
{
"sent": 0,
"lastAt": "2026-09-30T19:15:09.000Z",
"address": "0x689145da07fB0BF55Cb0A74360e8bB31591a0F78",
"received": 5,
"transfers": 5
},
{
"sent": 0,
"lastAt": "2026-10-08T04:04:32.000Z",
"address": "0x4FC7478CC5cD7627c3E5f2D784947Ad7117D353F",
"received": 3,
"transfers": 3
}
]
}
}Tags
x402
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