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Polymarket pays daily liquidity rewards to makers who keep orders inside the max spread on rewarded markets (see Polymarket’s Liquidity Rewards program docs). Each day’s earnings arrive as an on-chain batch transfer. PolyNode indexes every payout ever made: $28.1M to 174,850 wallets since 2023-11-25.
Reward market configurations (which markets pay rewards, rates and spreads) are served by the Rewards endpoints; this section covers the payouts themselves.
All credits endpoints take this type as reward.

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Lifetime total for a wallet

curl "https://api.polynode.dev/v3/wallets/0x204f72f35326db932158cba6adff0b9a1da95e14/credits/totals?types=reward" \
  -H "x-api-key: $POLYNODE_API_KEY"

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This month’s earnings for a wallet

Add unix-second bounds for windowed totals: 
curl "https://api.polynode.dev/v3/wallets/0x204f72f35326db932158cba6adff0b9a1da95e14/credits/totals?types=reward&start_ts=1783036800&end_ts=1785715200" \
  -H "x-api-key: $POLYNODE_API_KEY"

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Liquidity Rewards leaderboard

curl "https://api.polynode.dev/v3/credits/leaderboard?type=reward&limit=25" \
  -H "x-api-key: $POLYNODE_API_KEY"
Windows: window=24h|7d|30d|all, or explicit start_ts/end_ts.

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Payout history for a wallet

Filterable by time and amount, sortable by time or amount: 
curl "https://api.polynode.dev/v3/wallets/0x204f72f35326db932158cba6adff0b9a1da95e14/credits?types=reward&min_amount=100&sort=amount&order=desc&limit=50" \
  -H "x-api-key: $POLYNODE_API_KEY"

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Earnings chart data

curl "https://api.polynode.dev/v3/wallets/0x204f72f35326db932158cba6adff0b9a1da95e14/credits/series?types=reward&interval=week&fill=zero" \
  -H "x-api-key: $POLYNODE_API_KEY"

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Watch payouts land globally

curl "https://api.polynode.dev/v3/credits/events?types=reward&min_amount=1000&limit=50" \
  -H "x-api-key: $POLYNODE_API_KEY"

import requests

BASE = "https://api.polynode.dev"
HEADERS = {"x-api-key": "YOUR_KEY"}

wallet = "0x204f72f35326db932158cba6adff0b9a1da95e14"
totals = requests.get(
    f"{BASE}/v3/wallets/{wallet}/credits/totals",
    params={"types": "reward"}, headers=HEADERS,
).json()
print(totals["totals"]["reward"]["amount"])
See the Credits API Reference for every parameter.