Agent Exchange x402 census and directory

x402 census · cryptyx.ai · ac9dce60db94 · JSON

GET /api/v1/harness/first-ever

unprobed

First-ever fires — setups that fired for the FIRST TIME in prospective history. Rarest, highest-signal events in the canonical catalog. A setup with state = first_ever has never fired before since it was added. Historical backtest reflects behaviour on ADJACENT setups or partial configurations, not this exact combo — treat as structurally important context, not directional recommendations. Applic…

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://cryptyx.ai/api/v1/harness/first-ever
MethodGET
Price$0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x0cD2c9724F185a029101b4AEACf3F114415c394f
Sellercryptyx.ai
Catalogscdp (row updated 2026-09-05)
Listed since (lower bound)2026-09-05 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-05
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-05 (catalog-reported, not verified on chain)
Category (keyword rule)trading-signals
Templated pathno
x402Version in catalog2
Service name / tagsCRYPTYX · crypto, trading, signals, intelligence, agents

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 payers20
Payments43
USDC volume$0.67
Median payment$0.01
First / last payment2026-06-29 / 2026-09-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x0cD2c9724F185a029101b4AEACf3F114415c394f

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "asof_day": ""
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "asof_day": "2026-08-21",
   "count": 57,
   "first_ever": [
    {
     "asset": "BTC",
     "confidence": 1,
     "setup_id": "eff_bitcoin_full_stack_efficient_trend_persistence_4_factor_flagship_t5",
     "state": "first_ever",
     "z_scores": {
      "EFF_ER_30D": 1.9,
      "EFF_HURST_60D": 2.4,
      "TR_MA_DIST_180D": 2.08,
      "TR_RET_60D": 2.35
     }
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://cryptyx.ai/api/v1/harness/first-ever' -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/ac9dce60db94/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"ac9dce60db94"} 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 cryptyx.ai.