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api.x402node.dev math unit-convert
https://api.x402node.dev/math/unit-convert
payable
Unit converter, measurement conversion, metric imperial, length weight temperature speed area volume, kilometer to mile, kg to pound, celsius to fahrenheit, inch to cm, mph to kmh, bytes to gigabytes. Convert between common units of measurement: length, weight, temperature, area, volume, speed, data size, time. Accepts payment on Base or Solana — either network works.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.0022
- Network
- base
- Pay to
- 0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 48 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-08-10T09:18:55.922Z (1d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.x402node.dev%2Fmath%2Funit-convert"