Real-time crypto Fear & Greed index (0-100) with classification and history. Market-sentiment signal for allocation agents. Free source, deterministic. $0.005 USDC via x402 on Base. SYNTHORA. 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 |