x402 census · saylorinnovations.com · dc61e2095478 · JSON

GET /api/bio/pdb-search

gone

Protein Structure Search (RCSB PDB). Search the Protein Data Bank for 3D structures by free text (protein, organism, ligand, disease): total matches plus the top entries with title, method, resolution and release date, each linking to the full structure record. RCSB PDB, CC0.

Verdict: dead listing. 404/410: gone.

Facts from the catalogs

Field Value

URL https://saylorinnovations.com/api/bio/pdb-search

Method GET

Price $0.002 USDC = 2000 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 1 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 · bioinformatics, pdb-search, genomics, proteins

Unpaid probe (census of 2026-09-30)

Field

Value

Probed at

2026-09-30T23:49:54.380Z

HEAD

404

GET

404

Verdict

gone 404/410: gone

402 carried in

n/a

x402Version in the 402

n/a

accepts[0]

none

Live amount equals catalog price

not comparable

Live payTo equals catalog payTo

not comparable

extensions.bazaar in the 402

PAYMENT-REQUIRED header

WWW-Authenticate offer

none

Content type / server / CORS

text/html / cloudflare / none

Latency

1,411 ms

Error

none

Latest re-probe

Field

Value

Re-probed at

2026-10-01T08:13:42.000Z (cron)

Verdict now

gone unchanged

HEAD / GET

404 / 404

accepts[0]

none

Live amount equals catalog price

not comparable

Latency

764 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": {
   "q": "spike glycoprotein"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "found": true,
   "query": "spike glycoprotein",
   "results": [
    {
     "method": "ELECTRON MICROSCOPY",
     "pdb_id": "6VSB",
     "resolution_angstrom": 3.46,
     "title": "Prefusion 2019-nCoV spike glycoprotein with a single receptor-binding domain up"
    }
   ],
   "total_matches": 3000
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://saylorinnovations.com/api/bio/pdb-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/dc61e2095478/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"dc61e2095478"} 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.