x402 census · api.xynaptic.io · bfdead251927 · JSON

GET /v1/crypto-screener

unprobed

Xynaptic Crypto Screener — the market pulse: top gainers and losers 24h, highest volumes, most extreme moves from the top 250. GET ?limit=5. Fresh attention feed for trading agents.

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

Field Value

URL https://api.xynaptic.io/v1/crypto-screener

Method GET

Price $0.02 USDC = 20000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

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

payTo 0x4ff893dF9aB8603d5460FbbAeE0D9B8c0fa4D5e9

Seller api.xynaptic.io

Catalogs cdp (row updated 2026-09-26)

Listed since (lower bound) 2026-09-26 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-26

CDP quality counters 2 calls and 1 unique payers in 30 days, last call 2026-09-26 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags none

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

Field Value

Distinct payers 2

Payments 7

USDC volume $0.17

Median payment $0.03

First / last payment 2026-09-28 / 2026-09-30

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x4ff893dF9aB8603d5460FbbAeE0D9B8c0fa4D5e9

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {},
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "gainers": [
    {
     "change_24h_pct": 8.2,
     "symbol": "SOL"
    }
   ],
   "service": "crypto-screener",
   "summary": "Top movers over 24h."
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.xynaptic.io/v1/crypto-screener' -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/bfdead251927/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"bfdead251927"} 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 api.xynaptic.io.