x402 census · quantum.halowerk.com · ca7b2e36acc8 · JSON

POST /v1/portfolio-qaoa

unprobed

Enumerates every selection of exactly k assets for at most 16 assets, maximizing summed expected return minus a caller-selected covariance penalty. It runs no quantum circuit and provides a deterministic classical optimum for testing a corresponding binary QAOA or QUBO formulation; it is not investment advice and ignores transaction costs and allocation sizes.

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://quantum.halowerk.com/v1/portfolio-qaoa

Method POST

Price $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E

Seller quantum.halowerk.com

Catalogs cdp (row updated 2026-09-01)

Listed since (lower bound) 2026-09-01 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-01

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-01 (catalog-reported, not verified on chain)

Category (keyword rule) other/unknown

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 13

Payments 94

USDC volume $0.33

Median payment $0.003

First / last payment 2026-08-10 / 2026-09-30

Sampler-shaped share of payments 98.9%

Payers that are not samplers 1

Source forensics-2026-09-30

Address 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "assets": [
    {
     "expected_return": 0.08,
     "name": "A"
    },
    {
     "expected_return": 0.06,
     "name": "B"
    },
    {
     "expected_return": 0.1,
     "name": "C"
    },
    {
     "expected_return": 0.04,
     "name": "D"
    }
   ],
   "covariance": [
    [
     0.04,
     0.01,
     0.015,
     0.005
    ],
    [
     0.01,
     0.03,
     0.008,
     0.004
    ],
    [
     0.015,
     0.008,
     0.06,
     0.006
    ],
    [
     0.005,
     0.004,
     0.006,
     0.02
    ]
   ],
   "risk_aversion": 0.7,
   "select_count": 2
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://quantum.halowerk.com/v1/portfolio-qaoa' -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/ca7b2e36acc8/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"ca7b2e36acc8"} 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 quantum.halowerk.com.