Net fluid balance in mL
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.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
274 msmedian answer time
$0.005listed price per call
$0.007price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.magentlab.com/api/calc/fluid_io
| Category | Market data |
|---|---|
| Provider host | api.magentlab.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.007 | 274 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"drain_output_ml": 200,
"gi_output_ml": 100,
"iv_intake_ml": 2000,
"oral_intake_ml": 500,
"total_intake_ml": 2500,
"total_output_ml": 1800,
"ultrafiltration_ml": 0,
"urine_output_ml": 1500
},
{
"drain_output_ml": 200,
"gi_output_ml": 100,
"iv_intake_ml": 2000,
"oral_intake_ml": 500,
"total_intake_ml": 2500,
"total_output_ml": 1800,
"ultrafiltration_ml": 0,
"urine_output_ml": 1500
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"drain_output_ml": {
"description": "Optional drain fluid in mL (0-100000). When any output addend is sent, the output addends (missing as 0) must equal total_output_ml.",
"type": "number"
},
"gi_output_ml": {
"description": "Optional estimated gastrointestinal losses in mL (0-100000). Acheampong 2015 counted stool only with profound diarrhea. When any output addend is sent, the output addends (missing as 0) must equal total_output_ml. magent does not estimate insensible loss.",
"type": "number"
},
"iv_intake_ml": {
"description": "Optional intravenous intake in mL (0-100000). When any intake addend is sent, oral_intake_ml + iv_intake_ml (missing as 0) must equal total_intake_ml.",
"type": "number"
},
"oral_intake_ml": {
"description": "Optional oral intake in mL (0-100000). When any intake addend is sent, oral_intake_ml + iv_intake_ml (missing as 0) must equal total_intake_ml.",
"type": "number"
},
"total_intake_ml": {
"description": "Caller-assigned total fluid intake in mL over the interval (0-100000). Acheampong 2015: sum of intravenous and oral fluids. magent does not measure intake.",
"type": "number"
},
"total_output_ml": {
"description": "Caller-assigned total fluid output in mL over the same interval (0-100000). Acheampong 2015: urine, ultrafiltration, drain fluid, and estimated gastrointestinal losses. magent does not measure output.",
"type": "number"
},
"ultrafiltration_ml": {
"description": "Optional ultrafiltration volume in mL (0-100000). When any output addend is sent, the output addends (missing as 0) must equal total_output_ml.",
"type": "number"
},
"urine_output_ml": {
"description": "Optional urine output in mL (0-100000). When any output addend is sent, urine + ultrafiltration + drain + GI (missing as 0) must equal total_output_ml.",
"type": "number"
}
},
"required": [
"total_intake_ml",
"total_output_ml"
],
"type": "object"
},
"maxItems": 25,
"minItems": 1,
"type": "array"
}
},
"required": [
"items"
],
"type": "object"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}