x402 census · saylorinnovations.com · 5697271ad69d · JSON

GET /api/exoplanets/recent

gone

Newly Discovered Exoplanets (NASA Exoplanet Archive). Newly discovered exoplanets (NASA Exoplanet Archive): confirmed planets published since last year, newest first, with discovery method, size, mass, orbit and host star, counts by discovery method, and the total number of confirmed exoplanets. Filter by method (Transit, Microlensing, Radial Velocity). Public domain.

Verdict: dead listing. 404/410: gone.

Facts from the catalogs

Field Value

URL https://saylorinnovations.com/api/exoplanets/recent

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) domains/dns

Templated path no

x402Version in catalog 2

Service name / tags · exoplanets, recent, nasa, science

Unpaid probe (census of 2026-09-30)

Field

Value

Probed at

2026-09-30T23:49:23.068Z

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

1,271 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

818 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": {
   "limit": "20"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "by_method": {
    "Microlensing": 30,
    "Transit": 120
   },
   "confirmed_exoplanets_total": 6372,
   "discovered_since": 180,
   "found": true,
   "planets": [
    {
     "method": "Radial Velocity",
     "name": "K2-232 c",
     "published": "2026-09"
    }
   ],
   "since_year": 2025
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://saylorinnovations.com/api/exoplanets/recent' -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/5697271ad69d/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"5697271ad69d"} 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.