the402 endpoint detail

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api.magentlab.com calc fluid_io

https://api.magentlab.com/api/calc/fluid_io

answers 402

Net fluid balance in mL: caller-assigned total intake minus total output over the same interval. Optional oral plus IV intake and urine, ultrafiltration, drain, and GI output must sum to those totals when sent (Acheampong and Vincent 2015). Does not estimate insensible losses. Not a resuscitation or diuretic order; magent does not measure I/O. Deterministic published arithmetic with citation.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0x836Be278f1739fB4308091cD1852F7971Bc19Ee2
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
61 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:17:48.663Z (2h ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2Ffluid_io"