magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Mediaofflineeip155:8453Exactvia cdp
BclcHccLiverStagingCalculator
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 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 2026-09-02 00:33Z
—
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/bclc",
"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/bclc",
"tags": [
"bclc",
"hcc",
"liver",
"staging",
"calculator"
],
"mimeType": "application/json",
"description": "Reig 2022 BCLC stage 0/A/B/C/D from caller-assigned cancer-related ECOG, preserved liver function, transplant option, vascular invasion, extrahepatic disease, tumor count, and largest diameter. Returns stage and expected median survival only. Not a treatment recommendation. magent does not assign ECOG, compute Child-Pugh, or interpret imaging. Not a medical device. Not Milan or UCSF listing.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ecog": 0,
"largest_cm": 1.5,
"tumor_count": 1,
"extrahepatic": false,
"transplant_option": false,
"vascular_invasion": false,
"preserved_liver_function": true
}
},
"output": {
"type": "json",
"example": {
"ecog": 0,
"formula": "bclc",
"citation": {
"id": "reig-2022",
"doi": "10.1016/j.jhep.2021.11.018",
"pmid": "34801630",
"title": "BCLC strategy for prognosis prediction and treatment recommendation: The 2022 update",
"source": "J Hepatol. 2022;76(3):681-693",
"authors": "Reig M, Forner A, Rimola J, Ferrer-Fàbrega J, Burrel M, Garcia-Criado Á, Kelley RK, Galle PR, Mazzaferro V, Salem R, Sangro B, Singal AG, Vogel A, Fuster J, Ayuso C, Bruix J"
},
"criteria": [
{
"met": false,
"factor": "ps_gt_2"
},
{
"met": false,
"factor": "impaired_liver_without_lt"
},
{
"met": true,
"factor": "preserved_liver_function"
},
{
"met": false,
"factor": "vascular_invasion"
},
{
"met": false,
"factor": "extrahepatic"
},
{
"met": false,
"factor": "cancer_related_symptoms"
},
{
"met": true,
"factor": "single_leq_2cm"
},
{
"met": false,
"factor": "early_solitary_or_upto_3"
},
{
"met": false,
"factor": "multifocal_beyond_a"
}
],
"bclc_stage": "0",
"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.",
"largest_cm": 1.5,
"tumor_count": 1,
"extrahepatic": false,
"transplant_option": false,
"vascular_invasion": false,
"formula_expression": "bclc_stage D iff ecog > 2 or (not preserved_liver_function and not transplant_option); else C iff preserved_liver_function and ecog <= 2 and (vascular_invasion or extrahepatic or ecog >= 1); else 0 iff ecog == 0 and not vascular_invasion and not extrahepatic and (preserved_liver_function or transplant_option) and tumor_count == 1 and largest_cm <= 2; else A iff same eligibility and ((tumor_count == 1 and largest_cm > 2) or (tumor_count in 2..3 and largest_cm <= 3)); else B iff same eligibility and (tumor_count >= 4 or (tumor_count in 2..3 and largest_cm > 3)); else invalid_bclc_profile (Reig 2022)",
"expected_median_survival": ">5 years",
"preserved_liver_function": true
}
},
"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": [
"ecog",
"preserved_liver_function",
"transplant_option",
"vascular_invasion",
"extrahepatic",
"tumor_count",
"largest_cm"
],
"properties": {
"ecog": {
"type": "integer",
"description": "Cancer-related ECOG performance status 0-4 as assigned by the caller (Reig 2022: do not count baseline comorbidity PS). Integer 0-4. magent does not assign ECOG."
},
"largest_cm": {
"type": "number",
"description": "Largest tumor diameter in centimetres (0.1-30). Stage 0 meets at 2.0 cm and is A at 2.1 when solitary. Two or three nodules meet A at 3.0 cm and are B at 3.1. magent does not interpret imaging."
},
"tumor_count": {
"type": "integer",
"description": "Number of HCC nodules (integer 1-20) as assigned by the caller. Stage 0 is a single tumor <=2 cm; stage A allows a solitary tumor of any size or 2-3 nodules none >3 cm; four or more nodules are stage B when otherwise 0/A/B-eligible. magent does not interpret imaging."
},
"extrahepatic": {
"type": "boolean",
"description": "Extrahepatic spread as assigned by the caller. true or false. magent does not interpret imaging."
},
"transplant_option": {
"type": "boolean",
"description": "Option of liver transplantation when liver function is not preserved, as assigned by the caller (Reig 2022). true or false. magent does not list for transplant."
},
"vascular_invasion": {
"type": "boolean",
"description": "Vascular (vessel) invasion as assigned by the caller. true or false. magent does not interpret imaging."
},
"preserved_liver_function": {
"type": "boolean",
"description": "Preserved liver function as assigned by the caller (Reig 2022 abandoned Child-Pugh class for this assignment). true or false. magent does not compute Child-Pugh or ALBI."
}
}
}
},
"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/bclc",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"ecog": 0,
"largest_cm": 1.5,
"tumor_count": 1,
"extrahepatic": false,
"transplant_option": false,
"vascular_invasion": false,
"preserved_liver_function": true
},
{
"ecog": 0,
"largest_cm": 1.5,
"tumor_count": 1,
"extrahepatic": false,
"transplant_option": false,
"vascular_invasion": false,
"preserved_liver_function": true
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/bclc",
"count": 2,
"items": [
{
"ecog": 0,
"formula": "bclc",
"citation": {
"id": "reig-2022",
"doi": "10.1016/j.jhep.2021.11.018",
"pmid": "34801630",
"title": "BCLC strategy for prognosis prediction and treatment recommendation: The 2022 update",
"source": "J Hepatol. 2022;76(3):681-693",
"authors": "Reig M, Forner A, Rimola J, Ferrer-Fàbrega J, Burrel M, Garcia-Criado Á, Kelley RK, Galle PR, Mazzaferro V, Salem R, Sangro B, Singal AG, Vogel A, Fuster J, Ayuso C, Bruix J"
},
"criteria": [
{
"met": false,
"factor": "ps_gt_2"
},
{
"met": false,
"factor": "impaired_liver_without_lt"
},
{
"met": true,
"factor": "preserved_liver_function"
},
{
"met": false,
"factor": "vascular_invasion"
},
{
"met": false,
"factor": "extrahepatic"
},
{
"met": false,
"factor": "cancer_related_symptoms"
},
{
"met": true,
"factor": "single_leq_2cm"
},
{
"met": false,
"factor": "early_solitary_or_upto_3"
},
{
"met": false,
"factor": "multifocal_beyond_a"
}
],
"bclc_stage": "0",
"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.",
"largest_cm": 1.5,
"tumor_count": 1,
"extrahepatic": false,
"transplant_option": false,
"vascular_invasion": false,
"formula_expression": "bclc_stage D iff ecog > 2 or (not preserved_liver_function and not transplant_option); else C iff preserved_liver_function and ecog <= 2 and (vascular_invasion or extrahepatic or ecog >= 1); else 0 iff ecog == 0 and not vascular_invasion and not extrahepatic and (preserved_liver_function or transplant_option) and tumor_count == 1 and largest_cm <= 2; else A iff same eligibility and ((tumor_count == 1 and largest_cm > 2) or (tumor_count in 2..3 and largest_cm <= 3)); else B iff same eligibility and (tumor_count >= 4 or (tumor_count in 2..3 and largest_cm > 3)); else invalid_bclc_profile (Reig 2022)",
"expected_median_survival": ">5 years",
"preserved_liver_function": true
},
{
"ecog": 0,
"formula": "bclc",
"citation": {
"id": "reig-2022",
"doi": "10.1016/j.jhep.2021.11.018",
"pmid": "34801630",
"title": "BCLC strategy for prognosis prediction and treatment recommendation: The 2022 update",
"source": "J Hepatol. 2022;76(3):681-693",
"authors": "Reig M, Forner A, Rimola J, Ferrer-Fàbrega J, Burrel M, Garcia-Criado Á, Kelley RK, Galle PR, Mazzaferro V, Salem R, Sangro B, Singal AG, Vogel A, Fuster J, Ayuso C, Bruix J"
},
"criteria": [
{
"met": false,
"factor": "ps_gt_2"
},
{
"met": false,
"factor": "impaired_liver_without_lt"
},
{
"met": true,
"factor": "preserved_liver_function"
},
{
"met": false,
"factor": "vascular_invasion"
},
{
"met": false,
"factor": "extrahepatic"
},
{
"met": false,
"factor": "cancer_related_symptoms"
},
{
"met": true,
"factor": "single_leq_2cm"
},
{
"met": false,
"factor": "early_solitary_or_upto_3"
},
{
"met": false,
"factor": "multifocal_beyond_a"
}
],
"bclc_stage": "0",
"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.",
"largest_cm": 1.5,
"tumor_count": 1,
"extrahepatic": false,
"transplant_option": false,
"vascular_invasion": false,
"formula_expression": "bclc_stage D iff ecog > 2 or (not preserved_liver_function and not transplant_option); else C iff preserved_liver_function and ecog <= 2 and (vascular_invasion or extrahepatic or ecog >= 1); else 0 iff ecog == 0 and not vascular_invasion and not extrahepatic and (preserved_liver_function or transplant_option) and tumor_count == 1 and largest_cm <= 2; else A iff same eligibility and ((tumor_count == 1 and largest_cm > 2) or (tumor_count in 2..3 and largest_cm <= 3)); else B iff same eligibility and (tumor_count >= 4 or (tumor_count in 2..3 and largest_cm > 3)); else invalid_bclc_profile (Reig 2022)",
"expected_median_survival": ">5 years",
"preserved_liver_function": true
}
]
}
},
"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": [
"ecog",
"preserved_liver_function",
"transplant_option",
"vascular_invasion",
"extrahepatic",
"tumor_count",
"largest_cm"
],
"properties": {
"ecog": {
"type": "integer",
"description": "Cancer-related ECOG performance status 0-4 as assigned by the caller (Reig 2022: do not count baseline comorbidity PS). Integer 0-4. magent does not assign ECOG."
},
"largest_cm": {
"type": "number",
"description": "Largest tumor diameter in centimetres (0.1-30). Stage 0 meets at 2.0 cm and is A at 2.1 when solitary. Two or three nodules meet A at 3.0 cm and are B at 3.1. magent does not interpret imaging."
},
"tumor_count": {
"type": "integer",
"description": "Number of HCC nodules (integer 1-20) as assigned by the caller. Stage 0 is a single tumor <=2 cm; stage A allows a solitary tumor of any size or 2-3 nodules none >3 cm; four or more nodules are stage B when otherwise 0/A/B-eligible. magent does not interpret imaging."
},
"extrahepatic": {
"type": "boolean",
"description": "Extrahepatic spread as assigned by the caller. true or false. magent does not interpret imaging."
},
"transplant_option": {
"type": "boolean",
"description": "Option of liver transplantation when liver function is not preserved, as assigned by the caller (Reig 2022). true or false. magent does not list for transplant."
},
"vascular_invasion": {
"type": "boolean",
"description": "Vascular (vessel) invasion as assigned by the caller. true or false. magent does not interpret imaging."
},
"preserved_liver_function": {
"type": "boolean",
"description": "Preserved liver function as assigned by the caller (Reig 2022 abandoned Child-Pugh class for this assignment). true or false. magent does not compute Child-Pugh or ALBI."
}
}
},
"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
- 2026-09-02 00:33Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 15:45Z
- 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. 8 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/bclc, 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.