magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Tradingofflineeip155:8453Exactvia cdp
Michigan-piccPiccThrombosisVteScore
Calls · 30d
3→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 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.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-31 13:17Z
—
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.
{
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/michigan_picc",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
},
{
"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
}
],
"resource": {
"url": "https://api.magentlab.com/api/calc/michigan_picc",
"tags": [
"michigan-picc",
"picc",
"thrombosis",
"vte",
"score"
],
"mimeType": "application/json",
"description": "Chopra 2017 Michigan Risk Score for PICC-associated thrombosis: another CVC at PICC placement 1, WBC >12 x10^9/L 1 (12.0 does not score), active cancer 2, PICC lumens single 0 / double 2 / triple 3 (triple includes quad), VTE history never 0 / remote 2 / within 30 days 3 (one field; do not add remote and recent). Max 10. Classes I=0 (observed 0.9%), II=1-2 (1.6%), III=3-4 (2.7%), IV=>4 (4.7% Table 4). Not a PICC order. magent does not count lumens.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"wbc_ul": 8000,
"wbc_k_ul": 8,
"other_cvc": false,
"picc_lumens": "single",
"vte_history": "never",
"active_cancer": false
}
},
"output": {
"type": "json",
"example": {
"score": 0,
"wbc_ul": 8000,
"formula": "michigan_picc",
"citation": {
"id": "chopra-2017",
"doi": "10.1111/jth.13794",
"pmid": "28796444",
"title": "The Michigan Risk Score to predict peripherally inserted central catheter-associated thrombosis",
"source": "J Thromb Haemost. 2017;15(10):1951-1962",
"authors": "Chopra V, Kaatz S, Conlon A, Paje D, Grant PJ, Rogers MAM, Bernstein SJ, Saint S, Flanders SA"
},
"max_score": 10,
"components": [
{
"factor": "other_cvc",
"points": 0,
"present": false
},
{
"value": 8000,
"factor": "wbc_gt_12",
"points": 0,
"present": false
},
{
"factor": "active_cancer",
"points": 0,
"present": false
},
{
"value": "single",
"factor": "picc_lumens",
"points": 0,
"present": false
},
{
"value": "never",
"factor": "vte_history",
"points": 0,
"present": false
}
],
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"risk_class": "I",
"picc_lumens": "single",
"vte_history": "never",
"formula_expression": "Michigan PICC-DVT (Chopra 2017) = other_cvc (1) + (WBC >12 x10^9/L) (1) + active_cancer (2) + picc_lumens (single 0, double 2, triple 3; triple includes quad) + vte_history (never 0, remote 2, within_30_days 3); max 10; class I=0 (observed 0.9%), II=1-2 (1.6%), III=3-4 (2.7%), IV=>4 (4.7% Table 4)",
"observed_vte_percent": 0.9
}
},
"iconUrl": "https://api.magentlab.com/favicon.ico"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"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": [
"other_cvc",
"active_cancer",
"picc_lumens",
"vte_history"
],
"properties": {
"wbc_ul": {
"type": "number",
"description": "WBC in cells/µL (same as cells/mm^3) at PICC insertion. Provide wbc_k_ul or wbc_ul. Range 10-500000. >12000 scores 1 (12000 does not; 12001 does)."
},
"wbc_k_ul": {
"type": "number",
"description": "WBC in 10^3/µL (same as 10^9/L) at PICC insertion. Provide wbc_k_ul or wbc_ul. Range 0.01-500. >12 scores 1 (12.0 does not)."
},
"other_cvc": {
"type": "boolean",
"description": "Another CVC present when the index PICC is placed, as assigned by the caller (Chopra 2017). true or false. true scores 1. magent does not count catheters."
},
"picc_lumens": {
"enum": [
"single",
"double",
"triple"
],
"type": "string",
"description": "PICC lumen count as assigned by the caller (Chopra 2017). single scores 0; double scores 2; triple scores 3. triple includes quad as published. magent does not count lumens."
},
"vte_history": {
"enum": [
"never",
"remote",
"within_30_days"
],
"type": "string",
"description": "One 3-tier VTE history field (Chopra 2017). never scores 0; remote (prior VTE beyond 30 days) scores 2; within_30_days scores 3. Do not add remote and recent."
},
"active_cancer": {
"type": "boolean",
"description": "Active cancer as assigned by the caller (Chopra 2017). true or false. true scores 2."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"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
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront",
"resourceUrl": "https://api.magentlab.com/api/calc/michigan_picc",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"wbc_ul": 8000,
"wbc_k_ul": 8,
"other_cvc": false,
"picc_lumens": "single",
"vte_history": "never",
"active_cancer": false
},
{
"wbc_ul": 8000,
"wbc_k_ul": 8,
"other_cvc": false,
"picc_lumens": "single",
"vte_history": "never",
"active_cancer": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/michigan_picc",
"count": 2,
"items": [
{
"score": 0,
"wbc_ul": 8000,
"formula": "michigan_picc",
"citation": {
"id": "chopra-2017",
"doi": "10.1111/jth.13794",
"pmid": "28796444",
"title": "The Michigan Risk Score to predict peripherally inserted central catheter-associated thrombosis",
"source": "J Thromb Haemost. 2017;15(10):1951-1962",
"authors": "Chopra V, Kaatz S, Conlon A, Paje D, Grant PJ, Rogers MAM, Bernstein SJ, Saint S, Flanders SA"
},
"max_score": 10,
"components": [
{
"factor": "other_cvc",
"points": 0,
"present": false
},
{
"value": 8000,
"factor": "wbc_gt_12",
"points": 0,
"present": false
},
{
"factor": "active_cancer",
"points": 0,
"present": false
},
{
"value": "single",
"factor": "picc_lumens",
"points": 0,
"present": false
},
{
"value": "never",
"factor": "vte_history",
"points": 0,
"present": false
}
],
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"risk_class": "I",
"picc_lumens": "single",
"vte_history": "never",
"formula_expression": "Michigan PICC-DVT (Chopra 2017) = other_cvc (1) + (WBC >12 x10^9/L) (1) + active_cancer (2) + picc_lumens (single 0, double 2, triple 3; triple includes quad) + vte_history (never 0, remote 2, within_30_days 3); max 10; class I=0 (observed 0.9%), II=1-2 (1.6%), III=3-4 (2.7%), IV=>4 (4.7% Table 4)",
"observed_vte_percent": 0.9
},
{
"score": 0,
"wbc_ul": 8000,
"formula": "michigan_picc",
"citation": {
"id": "chopra-2017",
"doi": "10.1111/jth.13794",
"pmid": "28796444",
"title": "The Michigan Risk Score to predict peripherally inserted central catheter-associated thrombosis",
"source": "J Thromb Haemost. 2017;15(10):1951-1962",
"authors": "Chopra V, Kaatz S, Conlon A, Paje D, Grant PJ, Rogers MAM, Bernstein SJ, Saint S, Flanders SA"
},
"max_score": 10,
"components": [
{
"factor": "other_cvc",
"points": 0,
"present": false
},
{
"value": 8000,
"factor": "wbc_gt_12",
"points": 0,
"present": false
},
{
"factor": "active_cancer",
"points": 0,
"present": false
},
{
"value": "single",
"factor": "picc_lumens",
"points": 0,
"present": false
},
{
"value": "never",
"factor": "vte_history",
"points": 0,
"present": false
}
],
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"risk_class": "I",
"picc_lumens": "single",
"vte_history": "never",
"formula_expression": "Michigan PICC-DVT (Chopra 2017) = other_cvc (1) + (WBC >12 x10^9/L) (1) + active_cancer (2) + picc_lumens (single 0, double 2, triple 3; triple includes quad) + vte_history (never 0, remote 2, within_30_days 3); max 10; class I=0 (observed 0.9%), II=1-2 (1.6%), III=3-4 (2.7%), IV=>4 (4.7% Table 4)",
"observed_vte_percent": 0.9
}
]
}
},
"iconUrl": "https://api.magentlab.com/favicon.ico"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"body": {
"type": "object",
"required": [
"items"
],
"properties": {
"items": {
"type": "array",
"items": {
"type": "object",
"required": [
"other_cvc",
"active_cancer",
"picc_lumens",
"vte_history"
],
"properties": {
"wbc_ul": {
"type": "number",
"description": "WBC in cells/µL (same as cells/mm^3) at PICC insertion. Provide wbc_k_ul or wbc_ul. Range 10-500000. >12000 scores 1 (12000 does not; 12001 does)."
},
"wbc_k_ul": {
"type": "number",
"description": "WBC in 10^3/µL (same as 10^9/L) at PICC insertion. Provide wbc_k_ul or wbc_ul. Range 0.01-500. >12 scores 1 (12.0 does not)."
},
"other_cvc": {
"type": "boolean",
"description": "Another CVC present when the index PICC is placed, as assigned by the caller (Chopra 2017). true or false. true scores 1. magent does not count catheters."
},
"picc_lumens": {
"enum": [
"single",
"double",
"triple"
],
"type": "string",
"description": "PICC lumen count as assigned by the caller (Chopra 2017). single scores 0; double scores 2; triple scores 3. triple includes quad as published. magent does not count lumens."
},
"vte_history": {
"enum": [
"never",
"remote",
"within_30_days"
],
"type": "string",
"description": "One 3-tier VTE history field (Chopra 2017). never scores 0; remote (prior VTE beyond 30 days) scores 2; within_30_days scores 3. Do not add remote and recent."
},
"active_cancer": {
"type": "boolean",
"description": "Active cancer as assigned by the caller (Chopra 2017). true or false. true scores 2."
}
}
},
"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
- 2026-08-31 13:17Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 07:45Z
- 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. 13 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/michigan_picc, 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.