x402 census · saylorinnovations.com · 14fff9949408 · JSON

GET /api/medical/interactions

live

Drug Interaction Check from FDA Label Text. Check 2-5 drugs against each other using FDA label text: finds where one drug label names another drug, its ingredients, brands or drug class (SSRI, NSAID, statin...) in interaction, warning or contraindication sections, with excerpts. Reference only, not medical advice.

Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01). The live amount equals the catalog price.

Facts from the catalogs

Field Value

URL https://saylorinnovations.com/api/medical/interactions

Method GET

Price $0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, eip155:137, eip155:42161

payTo 0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa

Seller saylorinnovations.com

Catalogs cdp (row updated 2026-09-25), payai (row updated 2026-09-29)

Listed since (lower bound) 2026-09-25 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-29

CDP quality counters 2 calls and 1 unique payers in 30 days, last call 2026-09-25 (catalog-reported, not verified on chain)

Category (keyword rule) other/unknown

Templated path no

x402Version in catalog 2

Service name / tags · medical, health, drugs, interactions

Unpaid probe (census of 2026-09-30)

Field Value

Probed at 2026-09-30T23:45:24.533Z

HEAD 402

GET 402

Verdict live live: valid 402 to an unpaid GET

402 carried in header+body

x402Version in the 402 2

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"3000","payTo":"0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Live payTo equals catalog payTo yes

extensions.bazaar in the 402 yes

PAYMENT-REQUIRED header yes

WWW-Authenticate offer none

Content type / server / CORS application/json / cloudflare / *

Latency 2,086 ms

Error Payment required to access this resource.

Latest re-probe

Field Value

Re-probed at 2026-10-01T07:13:42.000Z (cron)

Verdict now live unchanged

HEAD / GET 402 / 402

Live amount equals catalog price yes

Latency 708 ms

Error none

On-chain facts for the payTo (public address)

Field Value

Distinct payers 2

Payments 6

USDC volume $0.02

Median payment $0.0025

First / last payment 2026-09-27 / 2026-09-29

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "drugs": "warfarin,aspirin"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "any_mentions": true,
   "drugs": [
    {
     "query": "warfarin",
     "rxcui": "11289"
    },
    {
     "query": "aspirin",
     "rxcui": "1191"
    }
   ],
   "label_mentions": [
    {
     "excerpts": [
      "…Drugs that increase bleeding risk: aspirin, NSAIDs…"
     ],
     "label_of": "warfarin",
     "matched_terms": [
      "aspirin"
     ],
     "mentions": "aspirin"
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://saylorinnovations.com/api/medical/interactions' -H 'accept: application/json'

The catalog declares GET. 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/14fff9949408/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"14fff9949408"} 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: PayAI listing status · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on saylorinnovations.com.