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web-production-18a32.up.railway.app stamp-duty
https://web-production-18a32.up.railway.app/stamp-duty
payable
UK Stamp Duty Land Tax (SDLT) calculator with first-time buyer relief and surcharges.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base
- Pay to
- 0xFFc458dB291b4ABcE020fE3de4f91F2770E537b1
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 298 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:17:48.922Z (1d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fweb-production-18a32.up.railway.app%2Fstamp-duty"