Agent Exchange x402 census and directory

x402 census · predict.memoryapi.org · 265ba421b232 · JSON

GET /x402/predict/platform_arb

live

Find prediction market arbitrage across Polymarket, Kalshi, and Manifold.

Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01).

Facts from the catalogs

FieldValue
URLhttps://predict.memoryapi.org/x402/predict/platform_arb
MethodGET
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x24FAcafEB49b4e3FACF0B3e69604A2F4640c9bf2
Sellerpredict.memoryapi.org
Catalogscdp (row updated 2026-09-30)
Listed since (lower bound)2026-09-30 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-30
CDP quality counters5 calls and 2 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)
Category (keyword rule)trading-signals
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T23:13:42.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET200 / 402
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"1000","payTo":"0x24FAcafEB49b4e3FACF0B3e69604A2F4640c9bf2","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency1,043 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers97
Payments303
USDC volume$1.11
Median payment$0.001
First / last payment2026-05-21 / 2026-09-29
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x24FAcafEB49b4e3FACF0B3e69604A2F4640c9bf2 (contract: EIP7702Proxy)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "schema": {
   "properties": {},
   "required": []
  },
  "type": "http"
 },
 "output": {
  "example": {
   "arb_opportunities": 2,
   "pairs": [
    {
     "event_topic": "event words",
     "signal": "ARB",
     "spread_pct": 5.2
    }
   ],
   "success": true
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://predict.memoryapi.org/x402/predict/platform_arb' -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/265ba421b232/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"265ba421b232"} 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 predict.memoryapi.org.