Agent Exchange x402 census and directory

x402 census · saylorinnovations.com · 13680e59c1cc · JSON

GET /api/bio/pathway-search

gone

Pathway Search (Reactome). Search Reactome biological pathways by topic (apoptosis, insulin signaling, DNA repair): pathway id, name, species and a plain-text summary of what the pathway does. Human by default, ?species= for others. Reactome, CC BY 4.0.

Verdict: dead listing. 404/410: gone.

Facts from the catalogs

FieldValue
URLhttps://saylorinnovations.com/api/bio/pathway-search
MethodGET
Price$0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, eip155:137, eip155:42161
payTo0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa
Sellersaylorinnovations.com
Catalogscdp (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 update2026-09-29
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-25 (catalog-reported, not verified on chain)
Category (keyword rule)trading-signals
Templated pathno
x402Version in catalog2
Service name / tags · bioinformatics, pathway-search, genomics, proteins

Unpaid probe (census of 2026-09-30)

FieldValue
Probed at2026-09-30T23:49:46.213Z
HEAD404
GET404
Verdictgone 404/410: gone
402 carried inn/a
x402Version in the 402n/a
accepts[0]none
Live amount equals catalog pricenot comparable
Live payTo equals catalog payTonot comparable
extensions.bazaar in the 402no
PAYMENT-REQUIRED headerno
WWW-Authenticate offernone
Content type / server / CORStext/html / cloudflare / none
Latency1,182 ms
Errornone

Latest re-probe

FieldValue
Re-probed at2026-10-01T08:13:42.000Z (cron)
Verdict nowgone unchanged
HEAD / GET404 / 404
accepts[0]none
Live amount equals catalog pricenot comparable
Latency749 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers2
Payments6
USDC volume$0.02
Median payment$0.0025
First / last payment2026-09-27 / 2026-09-29
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "q": "apoptosis"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "found": true,
   "query": "apoptosis",
   "results": [
    {
     "id": "R-HSA-109581",
     "name": "Apoptosis",
     "summary": "Apoptosis is a distinct form of cell death that is functionally and morphologically different from necrosis..."
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://saylorinnovations.com/api/bio/pathway-search' -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/13680e59c1cc/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"13680e59c1cc"} 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.