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ohlcv-candles.hergertsynthora.com service
https://ohlcv-candles.hergertsynthora.com/service
answers 402
Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.05
- Network
- base
- Pay to
- 0x10800a5a5B9d72251566EC651E862A8b4B427dE0
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 693 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:30:19.614Z (4d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fohlcv-candles.hergertsynthora.com%2Fservice"