x402 census · api.magentlab.com · c9fc07661efe · JSON

POST /api/calc/canadian_cspine

unreachable

Canadian C-spine rule (Stiell 2001). Cervical radiography is indicated if any high-risk factor is present (age ≥65, dangerous mechanism, or paresthesias in the extremities). If none, radiography is indicated unless at least one low-risk factor allows safe range-of-motion assessment and the patient can rotate the neck 45° left and right. Not a diagnosis, not NEXUS, and not pediatric. For alert, st…

Verdict: dead listing. connection failed or timed out.

Facts from the catalogs

Field Value

URL https://api.magentlab.com/api/calc/canadian_cspine

Method POST

Price $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x836Be278f1739fB4308091cD1852F7971Bc19Ee2

Seller api.magentlab.com

Catalogs cdp (row updated 2026-09-28)

Listed since (lower bound) 2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-28

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)

Category (keyword rule) other/unknown

Templated path no

x402Version in catalog 2

Service name / tags magent · canadian-c-spine, c-spine, radiography, emergency, trauma

Unpaid probe (census of 2026-09-30)

Field

Value

Probed at

2026-09-30T23:19:17.302Z

HEAD

no answer

GET

no answer

Verdict

unreachable connection failed or timed out

402 carried in

n/a

x402Version in the 402

n/a

accepts[0]

none

Live amount equals catalog price

no (live vs catalog 5000)

Live payTo equals catalog payTo

extensions.bazaar in the 402

PAYMENT-REQUIRED header

WWW-Authenticate offer

none

Content type / server / CORS

n/a / n/a / none

Latency

0 ms

Error

skipped: host unreachable (fetch failed: ECONNRESET) after 3 consecutive connection errors

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

Field Value

Distinct payers 1

Payments 2

USDC volume $0.01

Median payment $0.005

First / last payment 2026-08-26 / 2026-08-26

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x836Be278f1739fB4308091cD1852F7971Bc19Ee2

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "items": [
    {
     "able_to_rotate_45": true,
     "age": 40,
     "ambulatory_since_injury": false,
     "dangerous_mechanism": false,
     "delayed_neck_pain": true,
     "midline_cspine_tenderness": true,
     "paresthesias_extremities": false,
     "simple_rear_end_mvc": false,
     "sitting_in_ed": false
    },
    {
     "able_to_rotate_45": true,
     "age": 40,
     "ambulatory_since_injury": false,
     "dangerous_mechanism": false,
     "delayed_neck_pain": true,
     "midline_cspine_tenderness": true,
     "paresthesias_extremities": false,
     "simple_rear_end_mvc": false,
     "sitting_in_ed": false
    }
   ]
  },
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 2594
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://api.magentlab.com/api/calc/canadian_cspine' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/c9fc07661efe/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c9fc07661efe"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.magentlab.com.