magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Inferenceofflineeip155:8453Exactvia cdp
CircInfectionPrognosisCharlsonCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.
$13.75
Verified settled volume
2,750 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-04 08:10Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x836Be278f1739fB4308091cD1852F7971Bc19Ee2The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
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"description": "Absolute lymphocyte count in K cells/mm3 (0.1-10). Appendix Table 1: -0.29 times the natural log. Reference 1.0."
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"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0x836B…19Ee2. The signed payment is good for 10 minutes.
- Paid to
- 0x836B…19Ee2
- USD Coin contract
- 0x8335…02913
- Payment window
- 10 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
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"type": "string",
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"albumin_g_dl": {
"type": "number",
"description": "Albumin in g/dL (1-6). Appendix Table 1: 0.23 per 0.5 g/dL decrease below 4 g/dL (no term when albumin >= 4). Reference 3.7."
},
"d_dimer_gt_1": {
"type": "boolean",
"description": "D-dimer above the Appendix Table 1 threshold (>1 mg/dL FEU) as assigned by the caller. false is the reference. true adds 0.24."
},
"lymphocyte_k": {
"type": "number",
"description": "Absolute lymphocyte count in K cells/mm3 (0.1-10). Appendix Table 1: -0.29 times the natural log. Reference 1.0."
},
"nursing_home": {
"type": "boolean",
"description": "Admitted from a nursing home as assigned by the caller. false is the reference (0). true adds -0.24 if age<75, -0.22 if age>=75."
},
"ferritin_ng_ml": {
"type": "number",
"description": "Ferritin in ng/mL (10-20000). Appendix Table 1: 0.11 times the natural log. Reference 545."
},
"hemoglobin_g_dl": {
"type": "number",
"description": "Hemoglobin in g/dL (4-20). Appendix Table 1: 0.04 per 1-point decrease versus the reference 12.9 g/dL."
},
"respiratory_rate": {
"type": "number",
"description": "Respiratory rate in breaths/min (6-60). Appendix Table 1 linear spline with knot at 18: -0.25 per unit below 18, 0.13 per unit at or above 18. Reference RR 21."
},
"loss_of_taste_smell": {
"type": "boolean",
"description": "Loss of taste and smell present vs absent as assigned by the caller. false is the reference. true adds -0.30."
},
"troponin_detectable": {
"type": "boolean",
"description": "Detectable troponin vs not as assigned by the caller. false is the reference. true adds 0.19 if age<60, 1.36 if age 60-74, 0.35 if age>=75."
},
"respiratory_symptoms": {
"type": "boolean",
"description": "Respiratory symptoms present vs absent as assigned by the caller. false is the reference. true adds 0.81."
},
"constitutional_symptoms": {
"type": "boolean",
"description": "Constitutional symptoms present vs absent as assigned by the caller. false is the reference. true adds -0.57."
},
"gastrointestinal_symptoms": {
"type": "boolean",
"description": "Gastrointestinal symptoms present vs absent as assigned by the caller. false is the reference. true adds -0.14."
}
}
},
"maxItems": 25,
"minItems": 1
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"const": "POST"
},
"headers": {
"type": "object",
"additionalProperties": {
"type": "string"
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-04 08:10Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 14:15Z
- x402 version
- 2
- Max timeout
- 600s
- Liveness probe
- HTTP 0
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service magent and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=magent' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.magentlab.com/api/calc/circ, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.