magent
Deterministic published-formula arithmetic plus ICD-10-CM, RxNorm, and LOINC. Pay in USDC on Base via x402.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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_proctalgia_fugax",
"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_proctalgia_fugax",
"tags": [
"rome-iv-proctalgia-fugax",
"proctalgia-fugax",
"gi",
"anorectal",
"rome-iv"
],
"mimeType": "application/json",
"description": "Rao 2016 Rome IV proctalgia fugax (F2c). rome_iv_proctalgia_fugax is true iff recurrent rectal pain unrelated to defecation, episodes seconds to minutes (max 30 min), no anorectal pain between episodes, other causes excluded, last-3-months criteria, and 6-month onset. magent does not examine the rectum. Not a diagnosis, not levator ani, not unspecified functional anorectal pain.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"fulfilled_last_3_months": true,
"onset_at_least_6_months": true,
"no_anorectal_pain_between_episodes": true,
"other_causes_of_rectal_pain_excluded": true,
"episodes_seconds_to_minutes_max_30_minutes": true,
"recurrent_rectal_pain_unrelated_to_defecation": true
}
},
"output": {
"type": "json",
"example": {
"formula": "rome_iv_proctalgia_fugax",
"citation": {
"id": "rao-2016",
"doi": "10.1053/j.gastro.2016.02.009",
"pmid": "27144630",
"title": "Anorectal Disorders",
"source": "Gastroenterology. 2016;150(6):1430-1442",
"authors": "Rao SSC, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A"
},
"criteria": [
{
"met": true,
"factor": "recurrent_rectal_pain_unrelated_to_defecation"
},
{
"met": true,
"factor": "episodes_seconds_to_minutes_max_30_minutes"
},
{
"met": true,
"factor": "no_anorectal_pain_between_episodes"
},
{
"met": true,
"factor": "other_causes_of_rectal_pain_excluded"
},
{
"met": true,
"factor": "fulfilled_last_3_months"
},
{
"met": true,
"factor": "onset_at_least_6_months"
}
],
"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.",
"formula_expression": "rome_iv_proctalgia_fugax iff recurrent_rectal_pain_unrelated_to_defecation and episodes_seconds_to_minutes_max_30_minutes and no_anorectal_pain_between_episodes and other_causes_of_rectal_pain_excluded and fulfilled_last_3_months and onset_at_least_6_months (Rao 2016 Rome IV proctalgia fugax)",
"rome_iv_proctalgia_fugax": 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": [
"recurrent_rectal_pain_unrelated_to_defecation",
"episodes_seconds_to_minutes_max_30_minutes",
"no_anorectal_pain_between_episodes",
"other_causes_of_rectal_pain_excluded",
"fulfilled_last_3_months",
"onset_at_least_6_months"
],
"properties": {
"fulfilled_last_3_months": {
"type": "boolean",
"description": "Criteria fulfilled for the last 3 months, as assigned (Rao 2016). true or false as assigned by the caller. magent does not take a history."
},
"onset_at_least_6_months": {
"type": "boolean",
"description": "Symptom onset at least 6 months prior to diagnosis, as assigned (Rao 2016). true or false as assigned by the caller. magent does not take a history."
},
"no_anorectal_pain_between_episodes": {
"type": "boolean",
"description": "Absence of anorectal pain between episodes, as assigned (Rao 2016). true or false as assigned by the caller. magent does not examine the rectum."
},
"other_causes_of_rectal_pain_excluded": {
"type": "boolean",
"description": "Other causes of rectal pain excluded as assigned: inflammatory bowel disease, intramuscular abscess, anal fissure, thrombosed hemorrhoids, prostatitis, coccygodynia, and major structural alterations of the pelvic floor (Rao 2016). true or false as assigned by the caller. magent does not examine the rectum."
},
"episodes_seconds_to_minutes_max_30_minutes": {
"type": "boolean",
"description": "Episodes last from seconds to minutes, with a maximum duration of 30 minutes, as assigned (Rao 2016 F2c). Distinguishes proctalgia fugax from levator ani syndrome (pain lasting 30 minutes or longer). true or false as assigned by the caller. magent does not examine the rectum."
},
"recurrent_rectal_pain_unrelated_to_defecation": {
"type": "boolean",
"description": "Recurrent episodes of rectal pain unrelated to defecation, as assigned (Rao 2016 Rome IV proctalgia fugax F2c). true or false as assigned by the caller. magent does not examine the rectum."
}
}
}
},
"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.
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_proctalgia_fugax",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"fulfilled_last_3_months": true,
"onset_at_least_6_months": true,
"no_anorectal_pain_between_episodes": true,
"other_causes_of_rectal_pain_excluded": true,
"episodes_seconds_to_minutes_max_30_minutes": true,
"recurrent_rectal_pain_unrelated_to_defecation": true
},
{
"fulfilled_last_3_months": true,
"onset_at_least_6_months": true,
"no_anorectal_pain_between_episodes": true,
"other_causes_of_rectal_pain_excluded": true,
"episodes_seconds_to_minutes_max_30_minutes": true,
"recurrent_rectal_pain_unrelated_to_defecation": true
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/rome_iv_proctalgia_fugax",
"count": 2,
"items": [
{
"formula": "rome_iv_proctalgia_fugax",
"citation": {
"id": "rao-2016",
"doi": "10.1053/j.gastro.2016.02.009",
"pmid": "27144630",
"title": "Anorectal Disorders",
"source": "Gastroenterology. 2016;150(6):1430-1442",
"authors": "Rao SSC, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A"
},
"criteria": [
{
"met": true,
"factor": "recurrent_rectal_pain_unrelated_to_defecation"
},
{
"met": true,
"factor": "episodes_seconds_to_minutes_max_30_minutes"
},
{
"met": true,
"factor": "no_anorectal_pain_between_episodes"
},
{
"met": true,
"factor": "other_causes_of_rectal_pain_excluded"
},
{
"met": true,
"factor": "fulfilled_last_3_months"
},
{
"met": true,
"factor": "onset_at_least_6_months"
}
],
"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.",
"formula_expression": "rome_iv_proctalgia_fugax iff recurrent_rectal_pain_unrelated_to_defecation and episodes_seconds_to_minutes_max_30_minutes and no_anorectal_pain_between_episodes and other_causes_of_rectal_pain_excluded and fulfilled_last_3_months and onset_at_least_6_months (Rao 2016 Rome IV proctalgia fugax)",
"rome_iv_proctalgia_fugax": true
},
{
"formula": "rome_iv_proctalgia_fugax",
"citation": {
"id": "rao-2016",
"doi": "10.1053/j.gastro.2016.02.009",
"pmid": "27144630",
"title": "Anorectal Disorders",
"source": "Gastroenterology. 2016;150(6):1430-1442",
"authors": "Rao SSC, Bharucha AE, Chiarioni G, Felt-Bersma R, Knowles C, Malcolm A, Wald A"
},
"criteria": [
{
"met": true,
"factor": "recurrent_rectal_pain_unrelated_to_defecation"
},
{
"met": true,
"factor": "episodes_seconds_to_minutes_max_30_minutes"
},
{
"met": true,
"factor": "no_anorectal_pain_between_episodes"
},
{
"met": true,
"factor": "other_causes_of_rectal_pain_excluded"
},
{
"met": true,
"factor": "fulfilled_last_3_months"
},
{
"met": true,
"factor": "onset_at_least_6_months"
}
],
"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.",
"formula_expression": "rome_iv_proctalgia_fugax iff recurrent_rectal_pain_unrelated_to_defecation and episodes_seconds_to_minutes_max_30_minutes and no_anorectal_pain_between_episodes and other_causes_of_rectal_pain_excluded and fulfilled_last_3_months and onset_at_least_6_months (Rao 2016 Rome IV proctalgia fugax)",
"rome_iv_proctalgia_fugax": 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": [
"recurrent_rectal_pain_unrelated_to_defecation",
"episodes_seconds_to_minutes_max_30_minutes",
"no_anorectal_pain_between_episodes",
"other_causes_of_rectal_pain_excluded",
"fulfilled_last_3_months",
"onset_at_least_6_months"
],
"properties": {
"fulfilled_last_3_months": {
"type": "boolean",
"description": "Criteria fulfilled for the last 3 months, as assigned (Rao 2016). true or false as assigned by the caller. magent does not take a history."
},
"onset_at_least_6_months": {
"type": "boolean",
"description": "Symptom onset at least 6 months prior to diagnosis, as assigned (Rao 2016). true or false as assigned by the caller. magent does not take a history."
},
"no_anorectal_pain_between_episodes": {
"type": "boolean",
"description": "Absence of anorectal pain between episodes, as assigned (Rao 2016). true or false as assigned by the caller. magent does not examine the rectum."
},
"other_causes_of_rectal_pain_excluded": {
"type": "boolean",
"description": "Other causes of rectal pain excluded as assigned: inflammatory bowel disease, intramuscular abscess, anal fissure, thrombosed hemorrhoids, prostatitis, coccygodynia, and major structural alterations of the pelvic floor (Rao 2016). true or false as assigned by the caller. magent does not examine the rectum."
},
"episodes_seconds_to_minutes_max_30_minutes": {
"type": "boolean",
"description": "Episodes last from seconds to minutes, with a maximum duration of 30 minutes, as assigned (Rao 2016 F2c). Distinguishes proctalgia fugax from levator ani syndrome (pain lasting 30 minutes or longer). true or false as assigned by the caller. magent does not examine the rectum."
},
"recurrent_rectal_pain_unrelated_to_defecation": {
"type": "boolean",
"description": "Recurrent episodes of rectal pain unrelated to defecation, as assigned (Rao 2016 Rome IV proctalgia fugax F2c). true or false as assigned by the caller. magent does not examine the rectum."
}
}
},
"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
- 2026-09-01 01:03Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 22:15Z
- x402 version
- 2
- Max timeout
- 600s
- Liveness probe
- HTTP 402
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. 9 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_proctalgia_fugax, 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.