magent
GET api.magentlab.com/api/calc/qtc
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Heart-rate-corrected QT (Bazett or Fridericia). formula is required; magent does not pick one silently. Deterministic published correction with citation.
Resource: api.magentlab.com/api/calc/qtc
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x836Be278f1739fB4308091cD1852F7971Bc19Ee2
Payment methods: eip3009 · Last validation: 2026-09-14 10:59:30.928+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
},
"queryParams": {
"type": "object",
"required": [
"qt_ms",
"heart_rate_bpm",
"formula"
],
"properties": {
"qt_ms": {
"type": "number",
"description": "Measured QT interval in milliseconds (200-800)."
},
"formula": {
"enum": [
"bazett",
"fridericia"
],
"type": "string",
"description": "Correction formula. Required; magent does not pick one silently."
},
"heart_rate_bpm": {
"type": "integer",
"description": "Heart rate in beats per minute (30-220). RR_s = 60 / HR."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/qtc?formula=bazett&heart_rate_bpm=80&qt_ms=400",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "5000"
},
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"withdrawDelay": 86400,
"receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "batch-settlement",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"scheme": "batch-settlement",
"network": "eip155:8453",
"amountAtomic": "5000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.