Deposit Event

USDC deposits and withdrawals on Polymarket.

Emitted when USDC.e moves into or out of Polymarket contracts — deposits (funding a trading account) and withdrawals.

{
  "type": "deposit",
  "timestamp": 1772500002000,
  "data": {
    "event_type": "deposit",
    "tx_hash": "0xccc789...",
    "block_number": 54321000,
    "log_index": 8,
    "timestamp": 1772500002000,
    "from": "0xuser123...",
    "to": "0xpolymarket_contract...",
    "amount": 5000.0,
    "direction": "deposit"
  }
}

Fields

type · string · required

Always "deposit".

timestamp · number · required

Block timestamp in Unix milliseconds.

data · object · required

Show data fields

tx_hash · string · required

Transaction hash.

block_number · number · required

Block number.

log_index · number · required

Log index within the transaction.

timestamp · number · required

Block timestamp in Unix milliseconds.

from · string · required

Sender address.

to · string · required

Receiver address.

amount · number · required

USDC amount (6 decimal precision).

direction · string · required

"deposit" (to Polymarket) or "withdrawal" (from Polymarket).

Use cases

• Whale tracking — large deposits often precede big trades
• Fund flow analysis — track capital entering and leaving Polymarket
• Wallet monitoring — know when a tracked wallet funds their account