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Agent Service · x402 · early usage

Titulaer 2011 DELTA-P for SCLC association in Lambert-Eaton myasthenic syndrome

Titulaer 2011 DELTA-P for SCLC association in Lambert-Eaton myasthenic syndrome. One point each, at or within 3 months of LEMS onset: bulbar weakness (dysarthria/dysphagia/chewing/neck weakness); erectile dysfunction if male (always 0 if female); weight loss…

by api.magentlab.com · discovered, not yet claimed by its owner · updated 2026-10-12

30d calls4
30d payers2
MethodPOST
Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Titulaer 2011 DELTA-P for SCLC association in Lambert-Eaton myasthenic syndrome. One point each, at or within 3 months of LEMS onset: bulbar weakness (dysarthria/dysphagia/chewing/neck weakness); erectile dysfunction if male (always 0 if female); weight loss ≥5%; smoking at onset; age ≥50; Karnofsky <70. Max 6. Bands low 0-1, intermediate 2, high 3-6. Published SCLC percents for scores 0, 1, 3-6; none for score 2. Not a LEMS diagnosis, not SOX1, and not an SCLC screen.

Tags: delta-p · lems · sclc · neurology · calculator · bazaar

Call contract

Method
POST
Input
HTTP request
Output
json
Last paid call
2026-10-12
Input example from Bazaar metadata
{
  "items": [
    {
      "age": 40,
      "bulbar_weakness": false,
      "erectile_dysfunction": false,
      "kps_lt_70": false,
      "sex": "female",
      "smoking_at_onset": false,
      "weight_loss_ge_5pct": false
    },
    {
      "age": 40,
      "bulbar_weakness": false,
      "erectile_dysfunction": false,
      "kps_lt_70": false,
      "sex": "female",
      "smoking_at_onset": false,
      "weight_loss_ge_5pct": false
    }
  ]
}
Output example
{
  "count": 2,
  "items": [
    {
      "age_years": 40,
      "citation": {
        "authors": "Titulaer MJ, Maddison P, Sont JK, Wirtz PW, Hilton-Jones D, Klooster R, Willcox N, Potman M, Sillevis Smitt PAE, Kuks JBM, Roep BO, Vincent A, van der Maarel SM, van Dijk JG, Lang B, Verschuuren JJGM",
        "doi": "10.1200/JCO.2010.32.0440",
        "id": "titulaer-2011",
        "pmid": "21245427",
        "source": "J Clin Oncol. 2011;29(7):902-908",
        "title": "Clinical Dutch-English Lambert-Eaton Myasthenic Syndrome (LEMS) Tumor Association Prediction Score Accurately Predicts Small-Cell Lung Cancer in the LEMS"
      },
      "components": [
        {
          "factor": "bulbar_weakness",
          "points": 0,
          "present": false
        },
        {
          "factor": "erectile_dysfunction",
          "points": 0,
          "present": false
        },
        {
          "factor": "weight_loss_ge_5pct",
          "points": 0,
          "present": false
        },
        {
          "factor": "smoking_at_onset",
          "points": 0,
          "present": false
        },
        {
          "factor": "age_ge_50",
          "points": 0,
          "present": false,
          "value": 40
        },
        {
          "factor": "kps_lt_70",
          "points": 0,
          "present": 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": "delta_p",
      "formula_expression": "DELTA-P = bulbar_weakness 1 + (male and erectile_dysfunction) 1 + weight_loss_ge_5pct 1 + smoking_at_onset 1 + (age>=50) 1 + kps_lt_70 1; each at or within 3 months of LEMS onset; female erectile always 0; max 6; bands 0-1 low / 2 intermediate / 3-6 high (Titulaer 2011); SCLC percents 0/2.6/omit/83.9/93.5/96.6/100 for scores 0-6",
      "max_score": 6,
      "sclc_band": "low",
      "sclc_percent": 0,
      "score": 0,
      "sex": "female"
    },
    {
      "age_years": 40,
      "citation": {
        "authors": "Titulaer MJ, Maddison P, Sont JK, Wirtz PW, Hilton-Jones D, Klooster R, Willcox N, Potman M, Sillevis Smitt PAE, Kuks JBM, Roep BO, Vincent A, van der Maarel SM, van Dijk JG, Lang B, Verschuuren JJGM",
        "doi": "10.1200/JCO.2010.32.0440",
        "id": "titulaer-2011",
        "pmid": "21245427",
        "source": "J Clin Oncol. 2011;29(7):902-908",
        "title": "Clinical Dutch-English Lambert-Eaton Myasthenic Syndrome (LEMS) Tumor Association Prediction Score Accurately Predicts Small-Cell Lung Cancer in the LEMS"
      },
      "components": [
        {
          "factor": "bulbar_weakness",
          "points": 0,
          "present": false
        },
        {
          "factor": "erectile_dysfunction",
          "points": 0,
          "present": false
        },
        {
          "factor": "weight_loss_ge_5pct",
          "points": 0,
          "present": false
        },
        {
          "factor": "smoking_at_onset",
          "points": 0,
          "present": false
        },
        {
          "factor": "age_ge_50",
          "points": 0,
          "present": false,
          "value": 40
        },
        {
          "factor": "kps_lt_70",
          "points": 0,
          "present": 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": "delta_p",
      "formula_expression": "DELTA-P = bulbar_weakness 1 + (male and erectile_dysfunction) 1 + weight_loss_ge_5pct 1 + smoking_at_onset 1 + (age>=50) 1 + kps_lt_70 1; each at or within 3 months of LEMS onset; female erectile always 0; max 6; bands 0-1 low / 2 intermediate / 3-6 high (Titulaer 2011); SCLC percents 0/2.6/omit/83.9/93.5/96.6/100 for scores 0-6",
      "max_score": 6,
      "sclc_band": "low",
      "sclc_percent": 0,
      "score": 0,
      "sex": "female"
    }
  ],
  "path": "/api/calc/delta_p"
}

Use with an agent

  1. Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
  2. Inspect. Fetch /resources/39442.json for the price and payment options.
  3. Pay. Call GET https://api.magentlab.com/api/calc/delta_p. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
  4. Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price
$0.005 / request
Protocol
x402 v2
Auth
No account or API key. Pay per request.
Networks
Base
Demand
4 calls · 2 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

SchemeNetworkAssetAmountPay toTimeout
exactBase
eip155:8453		USDC$0.0050x836Be278f1739fB4308091cD1852F7971Bc19Ee2600s
accepts[] (raw JSON)
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "amountUsd": 0.005,
    "maxTimeoutSeconds": 600
  }
]

Schemas

Output schema (JSON Schema)
{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}
Example shape — generated from the schema, not a captured live response
{
  "example": {},
  "type": "string"
}

Examples

curl
curl "https://api.magentlab.com/api/calc/delta_p"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://api.magentlab.com/api/calc/delta_p");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}
Python
import httpx
res = httpx.get("https://api.magentlab.com/api/calc/delta_p")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider
api.magentlab.com
Endpoint
https://api.magentlab.com/api/calc/delta_p
Machine-readable
/resources/39442.json