ToolVet
67trust / 100

Calc Flamm Vbac

by magent in Other

x402 APIFailing, checked 1 h ago

Flamm 1997 admission VBAC score, max 10. Points: age under 40 (+2); vaginal birth none 0, before first cesarean 1, after first cesarean 2, before and after 4; first cesarean not for failure to progress (+1); admission effacement gt_75 +2, from_25_to_75 +1, lt_25 0; dilation >=4 cm (+1). Published success 49% for scores 0-2 and 95% for 8-10; other scores return the total only. Not a trial-of-labor order. magent does not examine the cervix.

POST
https://api.magentlab.com/api/calc/flamm_vbac
Price
$0.007
per call in USDC
Uptime
91.4%
last 30 days
Response time
161 ms
438 ms slowest 5%
Last check
Failed
1 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 1 h ago: Timed out

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

How to call it

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

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/flamm_vbac
content-type: application/json

{
  "items": [
    {
      "age_lt_40": true,
      "dilation_ge_4": false,
      "effacement": "lt_25",
      "non_ftp_indication": false,
      "vaginal_birth": "none"
    },
    {
      "age_lt_40": true,
      "dilation_ge_4": false,
      "effacement": "lt_25",
      "non_ftp_indication": false,
      "vaginal_birth": "none"
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
itemsarray of objectYes

Example response

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

Example response, 96 lines
{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Flamm BL, Geiger AM",
        "doi": "10.1016/S0029-7844(97)00531-0",
        "id": "flamm-1997",
        "pmid": "9397335",
        "source": "Obstet Gynecol. 1997;90(6):907-910",
        "title": "Vaginal birth after cesarean delivery: an admission scoring system"
      },
      "components": [
        {
          "factor": "age_lt_40",
          "points": 2,
          "present": true
        },
        {
          "factor": "vaginal_birth",
          "points": 0,
          "present": false,
          "value": "none"
        },
        {
          "factor": "non_ftp_indication",
          "points": 0,
          "present": false
        },
        {
          "factor": "effacement",
          "points": 0,
          "present": false,
          "value": "lt_25"
        },
        {
          "factor": "dilation_ge_4",
          "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": "flamm_vbac",
      "formula_expression": "Flamm VBAC = age_lt_40 2 + vaginal_birth (none 0, before_first_cesarean 1, after_first_cesarean 2, before_and_after 4) + non_ftp_indication 1 + effacement (gt_75 2, from_25_to_75 1, lt_25 0) + dilation_ge_4 1; Flamm 1997; max 10; published VBAC success 49% scores 0-2 and 95% scores 8-10",
      "max_score": 10,
      "score": 2,
      "vbac_success_percent": 49
    },
    {
      "citation": {
        "authors": "Flamm BL, Geiger AM",
        "doi": "10.1016/S0029-7844(97)00531-0",
        "id": "flamm-1997",
        "pmid": "9397335",
        "source": "Obstet Gynecol. 1997;90(6):907-910",
        "title": "Vaginal birth after cesarean delivery: an admission scoring system"
      },
      "components": [
        {
          "factor": "age_lt_40",
          "points": 2,
          "present": true
        },
        {
          "factor": "vaginal_birth",
          "points": 0,
          "present": false,
          "value": "none"
        },
        {
          "factor": "non_ftp_indication",
          "points": 0,
          "present": false
        },
        {
          "factor": "effacement",
          "points": 0,
          "present": false,
          "value": "lt_25"
        },
        {
          "factor": "dilation_ge_4",
          "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": "flamm_vbac",
      "formula_expression": "Flamm VBAC = age_lt_40 2 + vaginal_birth (none 0, before_first_cesarean 1, after_first_cesarean 2, before_and_after 4) + non_ftp_indication 1 + effacement (gt_75 2, from_25_to_75 1, lt_25 0) + dilation_ge_4 1; Flamm 1997; max 10; published VBAC success 49% scores 0-2 and 95% scores 8-10",
      "max_score": 10,
      "score": 2,
      "vbac_success_percent": 49
    }
  ],
  "path": "/api/calc/flamm_vbac"
}

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/flamm_vbac' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age_lt_40":true,"dilation_ge_4":false,"effacement":"lt_25","non_ftp_indication":false,"vaginal_birth":"none"},{"age_lt_40":true,"dilation_ge_4":false,"effacement":"lt_25","non_ftp_indication":false,"vaginal_birth":"none"}]}'

# 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/flamm_vbac' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age_lt_40":true,"dilation_ge_4":false,"effacement":"lt_25","non_ftp_indication":false,"vaginal_birth":"none"},{"age_lt_40":true,"dilation_ge_4":false,"effacement":"lt_25","non_ftp_indication":false,"vaginal_birth":"none"}]}' \
  | 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%2Fflamm_vbac&method=POST
const res = await pay("https://api.magentlab.com/api/calc/flamm_vbac", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age_lt_40": true,
        "dilation_ge_4": false,
        "effacement": "lt_25",
        "non_ftp_indication": false,
        "vaginal_birth": "none"
      },
      {
        "age_lt_40": true,
        "dilation_ge_4": false,
        "effacement": "lt_25",
        "non_ftp_indication": false,
        "vaginal_birth": "none"
      }
    ]
  }),
});
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/flamm_vbac",
        json={
            "items": [
                {
                    "age_lt_40": True,
                    "dilation_ge_4": False,
                    "effacement": "lt_25",
                    "non_ftp_indication": False,
                    "vaginal_birth": "none",
                },
                {
                    "age_lt_40": True,
                    "dilation_ge_4": False,
                    "effacement": "lt_25",
                    "non_ftp_indication": False,
                    "vaginal_birth": "none",
                },
            ],
        },
    )
    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

WhenResultHTTPTimePrice
1 h agoTimed out---
6 h agoTimed out---
11 h agoTimed out---
16 h agoPassed402160 ms$0.007
20 h agoPassed402276 ms$0.007
Show 10 older checks
25 h agoPassed402160 ms$0.007
30 h agoPassed402324 ms$0.007
34 h agoPassed402148 ms$0.007
39 h agoPassed402209 ms$0.007
43 h agoPassed402258 ms$0.007
47 h agoPassed402275 ms$0.007
2 days agoPassed402400 ms$0.007
2 days agoPassed402241 ms$0.007
3 days agoPassed402151 ms$0.007
3 days agoPassed402151 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007