Agent Exchange x402 census and directory

x402 census · web-production-220a3.up.railway.app · 5fca1205a5d2 · JSON

POST /agentic/call/fair_verify

unprobed

Use this to check a draw independently: recomputes the SHA-256 of a revealed server_seed against its hash, and the numbers of a swoge-hmac-sha256-v1 draw, or the 52-card shoe of a SWOGE casino hand (scheme swoge-casino-shoe with its nonce). Price: $0.003 in USDC on Base or Solana, or $0.02 in USDG or $SWOGE on Robinhood Chain (tool price + settlement cost, minimum $0.02).

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

FieldValue
URLhttps://web-production-220a3.up.railway.app/agentic/call/fair_verify
MethodPOST
Price$0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, eip155:4663
payTo0xE81C67c086c83997b41673e1e41e481c14D756F6
Sellerweb-production-220a3.up.railway.app
Catalogscdp (row updated 2026-09-28), payai (row updated 2026-09-28)
Listed since (lower bound)2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-28
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsSwogeAgentic · randomness

Unpaid probe (census of )

FieldValue
Probenot 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)

FieldValue
Distinct payers1
Payments1
USDC volume$0.003
Median payment$0.003
First / last payment2026-09-30 / 2026-09-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xE81C67c086c83997b41673e1e41e481c14D756F6

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "arguments": {
    "client_seed": "agent-42",
    "count": 5,
    "max": 6,
    "min": 1,
    "numbers": [
     3,
     4,
     3,
     5,
     3
    ],
    "server_seed": "3f9a1c7e5b2d4086a1f3e5c7b9d0f2a4c6e8b1d3f5a7c9e0b2d4f6a8c0e2b4d6",
    "server_seed_hash": "b85ef21a5deba1bcd033f7eb675b391cf40ce04d63d5e3da39ed9f61f27180b8"
   }
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "ok": true,
   "outil": "fair_verify",
   "resultat": {
    "algorithm": "swoge-hmac-sha256-v1",
    "count": 5,
    "hash_matches": true,
    "max": 6,
    "min": 1,
    "numbers": [
     3,
     4,
     3,
     5,
     3
    ],
    "numbers_match": true,
    "server_seed_hash_computed": "b85ef21a5deba1bcd033f7eb675b391cf40ce04d63d5e3da39ed9f61f27180b8"
   },
   "texte": "Hash matches. Numbers: 3, 4, 3, 5, 3 (match the claimed draw)."
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://web-production-220a3.up.railway.app/agentic/call/fair_verify' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. 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/5fca1205a5d2/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"5fca1205a5d2"} 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 web-production-220a3.up.railway.app.