Agent Exchange x402 census and directory

x402 census · saylorinnovations.com · 05a6d1938c15 · JSON

GET /api/bio/alphafold/:id

gone

AlphaFold Predicted Protein Structure. AlphaFold predicted protein structure for a UniProt accession or gene symbol: model id and version, mean pLDDT confidence, fraction of residues per confidence band with an interpretation, and download links (PDB, mmCIF, predicted aligned error). AlphaFold DB (EMBL-EBI / Google DeepMind), CC BY 4.0.

Verdict: dead listing. 404/410: gone.

Facts from the catalogs

FieldValue
URLhttps://saylorinnovations.com/api/bio/alphafold/:id
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)
Listed since (lower bound)2026-09-25 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-25
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)other/unknown
Templated pathyes: contains :param or {param}; probed as listed
x402Version in catalog2
Service name / tags · bioinformatics, alphafold, genomics, proteins

Unpaid probe (census of 2026-09-30)

FieldValue
Probed at2026-09-30T23:49:37.501Z
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
Latency1,241 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
Latency785 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",
  "pathParams": {
   "id": "P04637"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "accession": "P04637",
   "confidence_fractions": {
    "confident_70_90": 0.071,
    "low_50_70": 0.104,
    "very_high_over_90": 0.527,
    "very_low_under_50": 0.298
   },
   "files": {
    "pdb": "https://alphafold.ebi.ac.uk/files/AF-P04637-F1-model_v6.pdb"
   },
   "found": true,
   "gene": "TP53",
   "mean_plddt": 75.06,
   "model_id": "AF-P04637-F1",
   "model_version": 6
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://saylorinnovations.com/api/bio/alphafold/:id' -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/05a6d1938c15/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"05a6d1938c15"} 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 saylorinnovations.com.