Live prediction-market data from Polymarket: active markets, prices, volume and liquidity via the public Gamma API. Deterministic JSON, no key. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.001000 USDC | 0x1080...7dE0 |