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forex-convert.hergertsynthora.com service
https://forex-convert.hergertsynthora.com/service
answers 402
Convert any amount between 30+ currencies at real ECB rates. For payment and treasury agents pricing cross-currency. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. 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
- 633 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:26:41.336Z (1h ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fforex-convert.hergertsynthora.com%2Fservice"