67trust / 100

Calc Asas Axial Spa

by magent in Other

x402 APIFailing, checked 44 min ago

ASAS 2009 axial SpA classification (Rudwaleit set 3a / fig 2). Required: chronic back pain ≥3 months and age at onset <45. Imaging arm: MRI or modified New York sacroiliitis plus ≥1 of 11 SpA features. Clinical arm: HLA-B27 plus ≥2 other features (HLA-B27 does not count toward those two). Not a diagnosis. Not peripheral ASAS 2011. Not modified New York AS-only. magent does not read films or assay HLA-B27.

POST

https://api.magentlab.com/api/calc/asas_axial_spa

Price: $0.007; per call in USDC
Uptime: 88.9%; last 30 days
Response time: 169 ms; 367 ms slowest 5%
Last check: Failed; 44 min ago, next in 15 min

Run a free test call How to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 44 min ago: Timed out

Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://api.magentlab.com/api/calc/asas_axial_spa

Each call costs $0.007 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://api.magentlab.com/api/calc/asas_axial_spa
content-type: application/json

{
  "items": [
    {
      "age_at_onset_years": 28,
      "arthritis": false,
      "chronic_back_pain_ge_3_months": true,
      "dactylitis": false,
      "elevated_crp": false,
      "enthesitis_heel": false,
      "family_history_spa": false,
      "hla_b27": false,
      "ibd": false,
      "inflammatory_back_pain": true,
      "mri_sacroiliitis": true,
      "nsaid_good_response": false,
      "psoriasis": false,
      "radiographic_sacroiliitis": false,
      "uveitis": false
    },
    {
      "age_at_onset_years": 28,
      "arthritis": false,
      "chronic_back_pain_ge_3_months": true,
      "dactylitis": false,
      "elevated_crp": false,
      "enthesitis_heel": false,
      "family_history_spa": false,
      "hla_b27": false,
      "ibd": false,
      "inflammatory_back_pain": true,
      "mri_sacroiliitis": true,
      "nsaid_good_response": false,
      "psoriasis": false,
      "radiographic_sacroiliitis": false,
      "uveitis": false
    }
  ]
}

Parameters

Parameter	Type	Required	Description
`items`	array of object	Yes

Example response

The provider's example. We can't check it without paying.

Example response, 44 lines

{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Rudwaleit M, van der Heijde D, Landewé R, Listing J, Akkoc N, Brandt J, Braun J, Chou CT, Collantes-Estevez E, Dougados M, Huang F, Gu J, Khan MA, Kirazli Y, Maksymowych WP, Mielants H, Sørensen IJ, Ozgocmen S, Roussou E, Valle-Oñate R, Weber U, Wei J, Sieper J",
        "doi": "10.1136/ard.2009.108233",
        "id": "rudwaleit-2009",
        "pmid": "19297345",
        "source": "Ann Rheum Dis. 2009;68(6):777-783",
        "title": "The development of Assessment of SpondyloArthritis international Society classification criteria for axial spondyloarthritis (part II): validation and final selection"
      },
      "classified": true,
      "clinical_arm": 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.",
      "formula": "asas_axial_spa",
      "formula_expression": "ASAS 2009 axial SpA classification (Rudwaleit set 3a / fig 2 + table 5): required chronic_back_pain_ge_3_months true and age_at_onset_years 1–44 (age at onset <45). sacroiliitis_on_imaging = mri_sacroiliitis or radiographic_sacroiliitis. spa_feature_count = count of 11 SpA features (inflammatory_back_pain, arthritis, enthesitis_heel, uveitis, dactylitis, psoriasis, ibd, nsaid_good_response, family_history_spa, hla_b27, elevated_crp). other_spa_feature_count = spa_feature_count minus 1 if hla_b27 else spa_feature_count. imaging_arm iff sacroiliitis_on_imaging and spa_feature_count ≥1. clinical_arm iff hla_b27 and other_spa_feature_count ≥2. classified iff imaging_arm or clinical_arm. Not a diagnosis. Not peripheral ASAS 2011. Not modified New York AS-only",
      "imaging_arm": true,
      "other_spa_feature_count": 1,
      "sacroiliitis_on_imaging": true,
      "spa_feature_count": 1
    },
    {
      "citation": {
        "authors": "Rudwaleit M, van der Heijde D, Landewé R, Listing J, Akkoc N, Brandt J, Braun J, Chou CT, Collantes-Estevez E, Dougados M, Huang F, Gu J, Khan MA, Kirazli Y, Maksymowych WP, Mielants H, Sørensen IJ, Ozgocmen S, Roussou E, Valle-Oñate R, Weber U, Wei J, Sieper J",
        "doi": "10.1136/ard.2009.108233",
        "id": "rudwaleit-2009",
        "pmid": "19297345",
        "source": "Ann Rheum Dis. 2009;68(6):777-783",
        "title": "The development of Assessment of SpondyloArthritis international Society classification criteria for axial spondyloarthritis (part II): validation and final selection"
      },
      "classified": true,
      "clinical_arm": 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.",
      "formula": "asas_axial_spa",
      "formula_expression": "ASAS 2009 axial SpA classification (Rudwaleit set 3a / fig 2 + table 5): required chronic_back_pain_ge_3_months true and age_at_onset_years 1–44 (age at onset <45). sacroiliitis_on_imaging = mri_sacroiliitis or radiographic_sacroiliitis. spa_feature_count = count of 11 SpA features (inflammatory_back_pain, arthritis, enthesitis_heel, uveitis, dactylitis, psoriasis, ibd, nsaid_good_response, family_history_spa, hla_b27, elevated_crp). other_spa_feature_count = spa_feature_count minus 1 if hla_b27 else spa_feature_count. imaging_arm iff sacroiliitis_on_imaging and spa_feature_count ≥1. clinical_arm iff hla_b27 and other_spa_feature_count ≥2. classified iff imaging_arm or clinical_arm. Not a diagnosis. Not peripheral ASAS 2011. Not modified New York AS-only",
      "imaging_arm": true,
      "other_spa_feature_count": 1,
      "sacroiliitis_on_imaging": true,
      "spa_feature_count": 1
    }
  ],
  "path": "/api/calc/asas_axial_spa"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.007.

curl: see the payment challenge

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.magentlab.com/api/calc/asas_axial_spa' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age_at_onset_years":28,"arthritis":false,"chronic_back_pain_ge_3_months":true,"dactylitis":false,"elevated_crp":false,"enthesitis_heel":false,"family_history_spa":false,"hla_b27":false,"ibd":false,"inflammatory_back_pain":true,"mri_sacroiliitis":true,"nsaid_good_response":false,"psoriasis":false,"radiographic_sacroiliitis":false,"uveitis":false},{"age_at_onset_years":28,"arthritis":false,"chronic_back_pain_ge_3_months":true,"dactylitis":false,"elevated_crp":false,"enthesitis_heel":false,"family_history_spa":false,"hla_b27":false,"ibd":false,"inflammatory_back_pain":true,"mri_sacroiliitis":true,"nsaid_good_response":false,"psoriasis":false,"radiographic_sacroiliitis":false,"uveitis":false}]}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.magentlab.com/api/calc/asas_axial_spa' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age_at_onset_years":28,"arthritis":false,"chronic_back_pain_ge_3_months":true,"dactylitis":false,"elevated_crp":false,"enthesitis_heel":false,"family_history_spa":false,"hla_b27":false,"ibd":false,"inflammatory_back_pain":true,"mri_sacroiliitis":true,"nsaid_good_response":false,"psoriasis":false,"radiographic_sacroiliitis":false,"uveitis":false},{"age_at_onset_years":28,"arthritis":false,"chronic_back_pain_ge_3_months":true,"dactylitis":false,"elevated_crp":false,"enthesitis_heel":false,"family_history_spa":false,"hla_b27":false,"ibd":false,"inflammatory_back_pain":true,"mri_sacroiliitis":true,"nsaid_good_response":false,"psoriasis":false,"radiographic_sacroiliitis":false,"uveitis":false}]}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

JavaScript: pay and call

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.007 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.007" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.007 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2Fasas_axial_spa&method=POST
const res = await pay("https://api.magentlab.com/api/calc/asas_axial_spa", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age_at_onset_years": 28,
        "arthritis": false,
        "chronic_back_pain_ge_3_months": true,
        "dactylitis": false,
        "elevated_crp": false,
        "enthesitis_heel": false,
        "family_history_spa": false,
        "hla_b27": false,
        "ibd": false,
        "inflammatory_back_pain": true,
        "mri_sacroiliitis": true,
        "nsaid_good_response": false,
        "psoriasis": false,
        "radiographic_sacroiliitis": false,
        "uveitis": false
      },
      {
        "age_at_onset_years": 28,
        "arthritis": false,
        "chronic_back_pain_ge_3_months": true,
        "dactylitis": false,
        "elevated_crp": false,
        "enthesitis_heel": false,
        "family_history_spa": false,
        "hla_b27": false,
        "ibd": false,
        "inflammatory_back_pain": true,
        "mri_sacroiliitis": true,
        "nsaid_good_response": false,
        "psoriasis": false,
        "radiographic_sacroiliitis": false,
        "uveitis": false
      }
    ]
  }),
});
console.log(res.status, await res.text());

Python: pay and call

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.007 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.007"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.magentlab.com/api/calc/asas_axial_spa",
        json={
            "items": [
                {
                    "age_at_onset_years": 28,
                    "arthritis": False,
                    "chronic_back_pain_ge_3_months": True,
                    "dactylitis": False,
                    "elevated_crp": False,
                    "enthesitis_heel": False,
                    "family_history_spa": False,
                    "hla_b27": False,
                    "ibd": False,
                    "inflammatory_back_pain": True,
                    "mri_sacroiliitis": True,
                    "nsaid_good_response": False,
                    "psoriasis": False,
                    "radiographic_sacroiliitis": False,
                    "uveitis": False,
                },
                {
                    "age_at_onset_years": 28,
                    "arthritis": False,
                    "chronic_back_pain_ge_3_months": True,
                    "dactylitis": False,
                    "elevated_crp": False,
                    "enthesitis_heel": False,
                    "family_history_spa": False,
                    "hla_b27": False,
                    "ibd": False,
                    "inflammatory_back_pain": True,
                    "mri_sacroiliitis": True,
                    "nsaid_good_response": False,
                    "psoriasis": False,
                    "radiographic_sacroiliitis": False,
                    "uveitis": False,
                },
            ],
        },
    )
    print(res.status_code, res.text)

Security scan

1 finding

Charges more than its listed price in payment
Listed at $0.005, charges $0.007

Recent checks

When	Result	HTTP	Time	Price
44 min ago	Timed out	-	-	-
6 h ago	Timed out	-	-	-
11 h ago	Timed out	-	-	-
16 h ago	Timed out	-	-	-
21 h ago	Passed	402	171 ms	$0.007

Show 10 older checks

26 h ago	Passed	402	169 ms	$0.007
30 h ago	Passed	402	329 ms	$0.007
35 h ago	Passed	402	155 ms	$0.007
40 h ago	Passed	402	232 ms	$0.007
44 h ago	Passed	402	367 ms	$0.007
2 days ago	Passed	402	147 ms	$0.007
2 days ago	Passed	402	154 ms	$0.007
2 days ago	Passed	402	244 ms	$0.007
3 days ago	Passed	402	150 ms	$0.007
3 days ago	Passed	402	171 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 67/ 100

Availability (30-day uptime)		27 / 30
Valid x402 challenge		15 / 15
Response time		10 / 10
Real paying agents (30 days)		5 / 15
Charges what it lists		0 / 10
Security scan		10 / 10
Verified owner		0 / 10

How the score works

Payment terms

Price: $0.007 per call
Listed at: $0.005 (charges more)
Token: USDC
Networks: Base
Pays to: 0x836B…9Ee2

Real usage

Paying agents: 2 in 30 days
Paid calls: 4 in 30 days
Last paid call: 5 days ago

Source: x402 Bazaar settlement data.

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Trust score

[![ToolVet trust score](https://toolvet.app/badge/calc-asas-axial-spa.svg)](https://toolvet.app/s/calc-asas-axial-spa)