magent
ASAS 2011 peripheral SpA classification (Rudwaleit set 2D / fig 1 + table 5). Required: current arthritis, enthesitis, or dactylitis. Arm A: ≥1 of psoriasis, IBD, preceding infection, HLA-B27, uveitis, sacroiliitis on imaging. Arm B: ≥2 of arthritis, enthesitis, dactylitis, IBP in the past, family history of SpA. Not a diagnosis. Not ASAS 2009 axial. Not ESSG/Amor. magent does not examine joints or assay HLA-B27.
SearchLiveeip155:8453Exactvia cdp
AsasPeripheral-spaSpondyloarthritisClassificationEmergency
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 10 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 2026-08-31 13:29Z
—
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/asas_peripheral_spa",
"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/asas_peripheral_spa",
"tags": [
"asas",
"peripheral-spa",
"spondyloarthritis",
"classification",
"emergency"
],
"mimeType": "application/json",
"description": "ASAS 2011 peripheral SpA classification (Rudwaleit set 2D / fig 1 + table 5). Required: current arthritis, enthesitis, or dactylitis. Arm A: ≥1 of psoriasis, IBD, preceding infection, HLA-B27, uveitis, sacroiliitis on imaging. Arm B: ≥2 of arthritis, enthesitis, dactylitis, IBP in the past, family history of SpA. Not a diagnosis. Not ASAS 2009 axial. Not ESSG/Amor. magent does not examine joints or assay HLA-B27.",
"serviceName": "magent"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ibd": false,
"hla_b27": false,
"uveitis": false,
"ibp_past": false,
"arthritis": true,
"psoriasis": true,
"dactylitis": false,
"enthesitis": false,
"family_history_spa": false,
"preceding_infection": false,
"sacroiliitis_on_imaging": false
}
},
"output": {
"type": "json",
"example": {
"arm_a": true,
"arm_b": false,
"formula": "asas_peripheral_spa",
"citation": {
"id": "rudwaleit-2011",
"doi": "10.1136/ard.2010.133645",
"pmid": "21109520",
"title": "The Assessment of SpondyloArthritis international Society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general",
"source": "Ann Rheum Dis. 2011;70(1):25-31",
"authors": "Rudwaleit M, van der Heijde D, Landewé R, Akkoc N, Brandt J, Chou CT, Dougados M, Huang F, Gu J, Kirazli Y, Van den Bosch F, Olivieri I, Roussou E, Scarpato S, Sørensen IJ, Valle-Oñate R, Weber U, Wei J, Sieper J"
},
"classified": true,
"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.",
"arm_a_count": 1,
"arm_b_count": 1,
"formula_expression": "ASAS 2011 peripheral SpA classification (Rudwaleit set 2D / fig 1 + table 5): required arthritis or enthesitis or dactylitis (current). arm_a iff ≥1 of psoriasis, ibd, preceding_infection, hla_b27, uveitis, sacroiliitis_on_imaging. arm_b iff ≥2 of arthritis, enthesitis, dactylitis, ibp_past, family_history_spa (same caller flags as entry for arthritis/enthesitis/dactylitis). classified iff entry and (arm_a or arm_b). Not a diagnosis. Not ASAS 2009 axial. Not ESSG/Amor"
}
},
"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": [
"arthritis",
"enthesitis",
"dactylitis",
"psoriasis",
"ibd",
"preceding_infection",
"hla_b27",
"uveitis",
"sacroiliitis_on_imaging",
"ibp_past",
"family_history_spa"
],
"properties": {
"ibd": {
"type": "boolean",
"description": "Past or present Crohn's disease or ulcerative colitis diagnosed by a physician, as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not diagnose IBD."
},
"hla_b27": {
"type": "boolean",
"description": "HLA-B27 positive as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not assay HLA-B27."
},
"uveitis": {
"type": "boolean",
"description": "Past or present uveitis confirmed by an ophthalmologist, as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not examine the eye."
},
"ibp_past": {
"type": "boolean",
"description": "Inflammatory back pain in the past according to experts, as assigned by the caller (Rudwaleit 2011 arm B). true or false. magent does not take a history."
},
"arthritis": {
"type": "boolean",
"description": "Current peripheral arthritis (usually asymmetric and/or of lower limbs) as assigned by the caller (Rudwaleit 2011 set 2D entry). Table 5 additional feature is past or present synovitis diagnosed by a physician; the same caller flag counts toward arm B. true or false. magent does not examine joints."
},
"psoriasis": {
"type": "boolean",
"description": "Past or present psoriasis diagnosed by a physician, as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not examine skin."
},
"dactylitis": {
"type": "boolean",
"description": "Current dactylitis as assigned by the caller (Rudwaleit 2011 set 2D entry). Table 5 additional feature is past or present dactylitis diagnosed by a physician; the same caller flag counts toward arm B. true or false. magent does not examine digits."
},
"enthesitis": {
"type": "boolean",
"description": "Current enthesitis as assigned by the caller (Rudwaleit 2011 set 2D entry). Table 5 additional feature is past or present spontaneous pain or tenderness at an enthesis; the same caller flag counts toward arm B. true or false. magent does not examine entheses."
},
"family_history_spa": {
"type": "boolean",
"description": "Family history of SpA as assigned by the caller (Rudwaleit 2011 arm B): first-degree or second-degree relatives with ankylosing spondylitis, psoriasis, acute uveitis, reactive arthritis, or IBD. true or false. magent does not take a pedigree."
},
"preceding_infection": {
"type": "boolean",
"description": "Urethritis/cervicitis or diarrhoea within 1 month before arthritis, enthesitis, or dactylitis, as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not take a history."
},
"sacroiliitis_on_imaging": {
"type": "boolean",
"description": "Sacroiliitis on imaging as assigned by the caller (Rudwaleit 2011 arm A): definite radiographic sacroiliitis (bilateral grade 2–4 or unilateral grade 3–4) or active inflammation on MRI highly suggestive of SpA-associated sacroiliitis. true or false. magent does not read films."
}
}
}
},
"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/asas_peripheral_spa",
"assetTransferMethod": "eip3009"
},
"payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 600
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"items": [
{
"ibd": false,
"hla_b27": false,
"uveitis": false,
"ibp_past": false,
"arthritis": true,
"psoriasis": true,
"dactylitis": false,
"enthesitis": false,
"family_history_spa": false,
"preceding_infection": false,
"sacroiliitis_on_imaging": false
},
{
"ibd": false,
"hla_b27": false,
"uveitis": false,
"ibp_past": false,
"arthritis": true,
"psoriasis": true,
"dactylitis": false,
"enthesitis": false,
"family_history_spa": false,
"preceding_infection": false,
"sacroiliitis_on_imaging": false
}
]
},
"type": "http",
"method": "POST"
},
"output": {
"type": "json",
"example": {
"path": "/api/calc/asas_peripheral_spa",
"count": 2,
"items": [
{
"arm_a": true,
"arm_b": false,
"formula": "asas_peripheral_spa",
"citation": {
"id": "rudwaleit-2011",
"doi": "10.1136/ard.2010.133645",
"pmid": "21109520",
"title": "The Assessment of SpondyloArthritis international Society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general",
"source": "Ann Rheum Dis. 2011;70(1):25-31",
"authors": "Rudwaleit M, van der Heijde D, Landewé R, Akkoc N, Brandt J, Chou CT, Dougados M, Huang F, Gu J, Kirazli Y, Van den Bosch F, Olivieri I, Roussou E, Scarpato S, Sørensen IJ, Valle-Oñate R, Weber U, Wei J, Sieper J"
},
"classified": true,
"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.",
"arm_a_count": 1,
"arm_b_count": 1,
"formula_expression": "ASAS 2011 peripheral SpA classification (Rudwaleit set 2D / fig 1 + table 5): required arthritis or enthesitis or dactylitis (current). arm_a iff ≥1 of psoriasis, ibd, preceding_infection, hla_b27, uveitis, sacroiliitis_on_imaging. arm_b iff ≥2 of arthritis, enthesitis, dactylitis, ibp_past, family_history_spa (same caller flags as entry for arthritis/enthesitis/dactylitis). classified iff entry and (arm_a or arm_b). Not a diagnosis. Not ASAS 2009 axial. Not ESSG/Amor"
},
{
"arm_a": true,
"arm_b": false,
"formula": "asas_peripheral_spa",
"citation": {
"id": "rudwaleit-2011",
"doi": "10.1136/ard.2010.133645",
"pmid": "21109520",
"title": "The Assessment of SpondyloArthritis international Society classification criteria for peripheral spondyloarthritis and for spondyloarthritis in general",
"source": "Ann Rheum Dis. 2011;70(1):25-31",
"authors": "Rudwaleit M, van der Heijde D, Landewé R, Akkoc N, Brandt J, Chou CT, Dougados M, Huang F, Gu J, Kirazli Y, Van den Bosch F, Olivieri I, Roussou E, Scarpato S, Sørensen IJ, Valle-Oñate R, Weber U, Wei J, Sieper J"
},
"classified": true,
"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.",
"arm_a_count": 1,
"arm_b_count": 1,
"formula_expression": "ASAS 2011 peripheral SpA classification (Rudwaleit set 2D / fig 1 + table 5): required arthritis or enthesitis or dactylitis (current). arm_a iff ≥1 of psoriasis, ibd, preceding_infection, hla_b27, uveitis, sacroiliitis_on_imaging. arm_b iff ≥2 of arthritis, enthesitis, dactylitis, ibp_past, family_history_spa (same caller flags as entry for arthritis/enthesitis/dactylitis). classified iff entry and (arm_a or arm_b). Not a diagnosis. Not ASAS 2009 axial. Not ESSG/Amor"
}
]
}
},
"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": [
"arthritis",
"enthesitis",
"dactylitis",
"psoriasis",
"ibd",
"preceding_infection",
"hla_b27",
"uveitis",
"sacroiliitis_on_imaging",
"ibp_past",
"family_history_spa"
],
"properties": {
"ibd": {
"type": "boolean",
"description": "Past or present Crohn's disease or ulcerative colitis diagnosed by a physician, as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not diagnose IBD."
},
"hla_b27": {
"type": "boolean",
"description": "HLA-B27 positive as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not assay HLA-B27."
},
"uveitis": {
"type": "boolean",
"description": "Past or present uveitis confirmed by an ophthalmologist, as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not examine the eye."
},
"ibp_past": {
"type": "boolean",
"description": "Inflammatory back pain in the past according to experts, as assigned by the caller (Rudwaleit 2011 arm B). true or false. magent does not take a history."
},
"arthritis": {
"type": "boolean",
"description": "Current peripheral arthritis (usually asymmetric and/or of lower limbs) as assigned by the caller (Rudwaleit 2011 set 2D entry). Table 5 additional feature is past or present synovitis diagnosed by a physician; the same caller flag counts toward arm B. true or false. magent does not examine joints."
},
"psoriasis": {
"type": "boolean",
"description": "Past or present psoriasis diagnosed by a physician, as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not examine skin."
},
"dactylitis": {
"type": "boolean",
"description": "Current dactylitis as assigned by the caller (Rudwaleit 2011 set 2D entry). Table 5 additional feature is past or present dactylitis diagnosed by a physician; the same caller flag counts toward arm B. true or false. magent does not examine digits."
},
"enthesitis": {
"type": "boolean",
"description": "Current enthesitis as assigned by the caller (Rudwaleit 2011 set 2D entry). Table 5 additional feature is past or present spontaneous pain or tenderness at an enthesis; the same caller flag counts toward arm B. true or false. magent does not examine entheses."
},
"family_history_spa": {
"type": "boolean",
"description": "Family history of SpA as assigned by the caller (Rudwaleit 2011 arm B): first-degree or second-degree relatives with ankylosing spondylitis, psoriasis, acute uveitis, reactive arthritis, or IBD. true or false. magent does not take a pedigree."
},
"preceding_infection": {
"type": "boolean",
"description": "Urethritis/cervicitis or diarrhoea within 1 month before arthritis, enthesitis, or dactylitis, as assigned by the caller (Rudwaleit 2011 arm A). true or false. magent does not take a history."
},
"sacroiliitis_on_imaging": {
"type": "boolean",
"description": "Sacroiliitis on imaging as assigned by the caller (Rudwaleit 2011 arm A): definite radiographic sacroiliitis (bilateral grade 2–4 or unilateral grade 3–4) or active inflammation on MRI highly suggestive of SpA-associated sacroiliitis. true or false. magent does not read films."
}
}
},
"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 13:29Z
- Last indexed by Roundhouse
- 2026-09-07 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 12:45Z
- 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. 10 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/asas_peripheral_spa, 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.