magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
Searchofflineeip155:8453Exactvia cdp
Rome-iv-fdFunctional-dyspepsiaGiPdsEps
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 14 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-31 13:09Z
—
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/rome_iv_fd",
"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/rome_iv_fd",
"tags": [
"rome-iv-fd",
"functional-dyspepsia",
"gi",
"pds",
"eps"
],
"mimeType": "application/json",
"description": "Stanghellini 2016 Rome IV B1 FD. rome_iv_fd is true iff last-3-months criteria with 6-month onset, no structural disease likely to explain symptoms, and PDS (B1a) and/or EPS (B1b). pds iff fullness and/or early satiation >=3 days/week. eps iff epigastric pain and/or burning >=1 day/week. Overlap allowed. Caller assigns six flags. magent does not examine the patient. Not a diagnosis, not Rome III dyspepsia, not Rome IV IBS.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"no_structural_disease": true,
"criteria_last_3_months_onset_6_months": true,
"bothersome_epigastric_pain_ge_1_day_week": false,
"bothersome_early_satiation_ge_3_days_week": false,
"bothersome_epigastric_burning_ge_1_day_week": false,
"bothersome_postprandial_fullness_ge_3_days_week": true
}
},
"output": {
"type": "json",
"example": {
"eps": false,
"pds": true,
"formula": "rome_iv_fd",
"citation": {
"id": "stanghellini-2016",
"doi": "10.1053/j.gastro.2016.02.011",
"pmid": "27147122",
"title": "Gastroduodenal Disorders",
"source": "Gastroenterology. 2016;150(6):1380-1392",
"authors": "Stanghellini V, Chan FKL, Hasler WL, Malagelada JR, Suzuki H, Tack J, Talley NJ"
},
"criteria": [
{
"met": true,
"factor": "criteria_last_3_months_onset_6_months"
},
{
"met": true,
"factor": "no_structural_disease"
},
{
"met": true,
"factor": "bothersome_postprandial_fullness_ge_3_days_week"
},
{
"met": false,
"factor": "bothersome_early_satiation_ge_3_days_week"
},
{
"met": true,
"factor": "pds"
},
{
"met": false,
"factor": "bothersome_epigastric_pain_ge_1_day_week"
},
{
"met": false,
"factor": "bothersome_epigastric_burning_ge_1_day_week"
},
{
"met": false,
"factor": "eps"
},
{
"met": true,
"factor": "pds_or_eps"
}
],
"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.",
"rome_iv_fd": true,
"formula_expression": "rome_iv_fd iff criteria_last_3_months_onset_6_months and no_structural_disease and (pds or eps); pds iff bothersome_postprandial_fullness_ge_3_days_week or bothersome_early_satiation_ge_3_days_week; eps iff bothersome_epigastric_pain_ge_1_day_week or bothersome_epigastric_burning_ge_1_day_week (Stanghellini 2016 Rome IV B1 functional dyspepsia)"
}
},
"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": [
"criteria_last_3_months_onset_6_months",
"no_structural_disease",
"bothersome_postprandial_fullness_ge_3_days_week",
"bothersome_early_satiation_ge_3_days_week",
"bothersome_epigastric_pain_ge_1_day_week",
"bothersome_epigastric_burning_ge_1_day_week"
],
"properties": {
"no_structural_disease": {
"type": "boolean",
"description": "No evidence of structural disease (including at upper endoscopy) likely to explain the symptoms, as assigned by the caller (Stanghellini 2016 B1). true or false. magent does not examine the patient or interpret endoscopy."
},
"criteria_last_3_months_onset_6_months": {
"type": "boolean",
"description": "Criteria fulfilled for the last 3 months with symptom onset at least 6 months prior to diagnosis, as assigned (Stanghellini 2016 B1). true or false as assigned by the caller. magent does not take a history."
},
"bothersome_epigastric_pain_ge_1_day_week": {
"type": "boolean",
"description": "Bothersome epigastric pain at least 1 day per week (B1b EPS item; one or both EPS items required for EPS). true or false as assigned by the caller. magent does not examine the patient."
},
"bothersome_early_satiation_ge_3_days_week": {
"type": "boolean",
"description": "Bothersome early satiation at least 3 days per week (B1a PDS item; one or both PDS items required for PDS). true or false as assigned by the caller. magent does not examine the patient."
},
"bothersome_epigastric_burning_ge_1_day_week": {
"type": "boolean",
"description": "Bothersome epigastric burning at least 1 day per week (B1b EPS item; one or both EPS items required for EPS). true or false as assigned by the caller. magent does not examine the patient."
},
"bothersome_postprandial_fullness_ge_3_days_week": {
"type": "boolean",
"description": "Bothersome postprandial fullness at least 3 days per week (B1a PDS item; one or both PDS items required for PDS). true or false as assigned by the caller. magent does not examine the patient."
}
}
}
},
"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/rome_iv_fd",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"no_structural_disease": true,
"criteria_last_3_months_onset_6_months": true,
"bothersome_epigastric_pain_ge_1_day_week": false,
"bothersome_early_satiation_ge_3_days_week": false,
"bothersome_epigastric_burning_ge_1_day_week": false,
"bothersome_postprandial_fullness_ge_3_days_week": true
},
{
"no_structural_disease": true,
"criteria_last_3_months_onset_6_months": true,
"bothersome_epigastric_pain_ge_1_day_week": false,
"bothersome_early_satiation_ge_3_days_week": false,
"bothersome_epigastric_burning_ge_1_day_week": false,
"bothersome_postprandial_fullness_ge_3_days_week": true
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/rome_iv_fd",
"count": 2,
"items": [
{
"eps": false,
"pds": true,
"formula": "rome_iv_fd",
"citation": {
"id": "stanghellini-2016",
"doi": "10.1053/j.gastro.2016.02.011",
"pmid": "27147122",
"title": "Gastroduodenal Disorders",
"source": "Gastroenterology. 2016;150(6):1380-1392",
"authors": "Stanghellini V, Chan FKL, Hasler WL, Malagelada JR, Suzuki H, Tack J, Talley NJ"
},
"criteria": [
{
"met": true,
"factor": "criteria_last_3_months_onset_6_months"
},
{
"met": true,
"factor": "no_structural_disease"
},
{
"met": true,
"factor": "bothersome_postprandial_fullness_ge_3_days_week"
},
{
"met": false,
"factor": "bothersome_early_satiation_ge_3_days_week"
},
{
"met": true,
"factor": "pds"
},
{
"met": false,
"factor": "bothersome_epigastric_pain_ge_1_day_week"
},
{
"met": false,
"factor": "bothersome_epigastric_burning_ge_1_day_week"
},
{
"met": false,
"factor": "eps"
},
{
"met": true,
"factor": "pds_or_eps"
}
],
"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.",
"rome_iv_fd": true,
"formula_expression": "rome_iv_fd iff criteria_last_3_months_onset_6_months and no_structural_disease and (pds or eps); pds iff bothersome_postprandial_fullness_ge_3_days_week or bothersome_early_satiation_ge_3_days_week; eps iff bothersome_epigastric_pain_ge_1_day_week or bothersome_epigastric_burning_ge_1_day_week (Stanghellini 2016 Rome IV B1 functional dyspepsia)"
},
{
"eps": false,
"pds": true,
"formula": "rome_iv_fd",
"citation": {
"id": "stanghellini-2016",
"doi": "10.1053/j.gastro.2016.02.011",
"pmid": "27147122",
"title": "Gastroduodenal Disorders",
"source": "Gastroenterology. 2016;150(6):1380-1392",
"authors": "Stanghellini V, Chan FKL, Hasler WL, Malagelada JR, Suzuki H, Tack J, Talley NJ"
},
"criteria": [
{
"met": true,
"factor": "criteria_last_3_months_onset_6_months"
},
{
"met": true,
"factor": "no_structural_disease"
},
{
"met": true,
"factor": "bothersome_postprandial_fullness_ge_3_days_week"
},
{
"met": false,
"factor": "bothersome_early_satiation_ge_3_days_week"
},
{
"met": true,
"factor": "pds"
},
{
"met": false,
"factor": "bothersome_epigastric_pain_ge_1_day_week"
},
{
"met": false,
"factor": "bothersome_epigastric_burning_ge_1_day_week"
},
{
"met": false,
"factor": "eps"
},
{
"met": true,
"factor": "pds_or_eps"
}
],
"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.",
"rome_iv_fd": true,
"formula_expression": "rome_iv_fd iff criteria_last_3_months_onset_6_months and no_structural_disease and (pds or eps); pds iff bothersome_postprandial_fullness_ge_3_days_week or bothersome_early_satiation_ge_3_days_week; eps iff bothersome_epigastric_pain_ge_1_day_week or bothersome_epigastric_burning_ge_1_day_week (Stanghellini 2016 Rome IV B1 functional dyspepsia)"
}
]
}
},
"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": [
"criteria_last_3_months_onset_6_months",
"no_structural_disease",
"bothersome_postprandial_fullness_ge_3_days_week",
"bothersome_early_satiation_ge_3_days_week",
"bothersome_epigastric_pain_ge_1_day_week",
"bothersome_epigastric_burning_ge_1_day_week"
],
"properties": {
"no_structural_disease": {
"type": "boolean",
"description": "No evidence of structural disease (including at upper endoscopy) likely to explain the symptoms, as assigned by the caller (Stanghellini 2016 B1). true or false. magent does not examine the patient or interpret endoscopy."
},
"criteria_last_3_months_onset_6_months": {
"type": "boolean",
"description": "Criteria fulfilled for the last 3 months with symptom onset at least 6 months prior to diagnosis, as assigned (Stanghellini 2016 B1). true or false as assigned by the caller. magent does not take a history."
},
"bothersome_epigastric_pain_ge_1_day_week": {
"type": "boolean",
"description": "Bothersome epigastric pain at least 1 day per week (B1b EPS item; one or both EPS items required for EPS). true or false as assigned by the caller. magent does not examine the patient."
},
"bothersome_early_satiation_ge_3_days_week": {
"type": "boolean",
"description": "Bothersome early satiation at least 3 days per week (B1a PDS item; one or both PDS items required for PDS). true or false as assigned by the caller. magent does not examine the patient."
},
"bothersome_epigastric_burning_ge_1_day_week": {
"type": "boolean",
"description": "Bothersome epigastric burning at least 1 day per week (B1b EPS item; one or both EPS items required for EPS). true or false as assigned by the caller. magent does not examine the patient."
},
"bothersome_postprandial_fullness_ge_3_days_week": {
"type": "boolean",
"description": "Bothersome postprandial fullness at least 3 days per week (B1a PDS item; one or both PDS items required for PDS). true or false as assigned by the caller. magent does not examine the patient."
}
}
},
"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 13:09Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 16:45Z
- 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. 14 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/rome_iv_fd, 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.