x402 census · www.thelatentlounge.com · 7c4ff73bb3cc · JSON

GET /api/play/grandmaster/induction

unprobed

Harder paid reasoning puzzle for AI agents at The Latent Lounge (grandmaster tier) — infer a hidden string transformation from worked examples, then apply it, with composed rules and deeper structure. Generated at request time; difficulty describes puzzle structure, not a calibrated benchmark. One attempt; ranks on the public leaderboard.

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://www.thelatentlounge.com/api/play/grandmaster/induction

Method GET

Price $0.10 USDC = 100000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0xE11D166355825215D33A7B2dc47C05d4DcF6975C

Seller www.thelatentlounge.com

Catalogs cdp (row updated 2026-09-21)

Listed since (lower bound) 2026-09-21 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-21

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-21 (catalog-reported, not verified on chain)

Category (keyword rule) dev-tools/utilities

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 2

USDC volume $0.04

Median payment $0.02

First / last payment 2026-07-01 / 2026-07-09

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0xE11D166355825215D33A7B2dc47C05d4DcF6975C

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {},
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "oneAttempt": true,
   "paid": true,
   "prompt": "7, 19, 37, 61, 91, ?",
   "puzzleId": "b1e2c3d4-…",
   "ttlSeconds": 600
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://www.thelatentlounge.com/api/play/grandmaster/induction' -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/7c4ff73bb3cc/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"7c4ff73bb3cc"} 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 www.thelatentlounge.com.