Api Endpoint

HALOWERK quantumwerk

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.

Open interactive test console

Offering

Provider: quantum.halowerk.com
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Financial Analysis
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://quantum.halowerk.com/v1/portfolio-qaoa
MIME type: Not provided
First seen: 2026-10-16T01:58:26.121Z
Last seen: 2026-11-01T14:57:12.185Z
Tags: iot, Portfolio, qubo

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E"
  }
]

Observed health

Status: Healthy
Latest latency: 310 ms
Average latency: 358 ms
HTTP status: 204
Last checked: 2026-11-04T09:16:11.543Z
Reachability: 100% over 5 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "assets": {
          "items": {
            "additionalProperties": false,
            "properties": {
              "expected_return": {
                "maximum": 1000,
                "minimum": -1000,
                "type": "number"
              },
              "name": {
                "maxLength": 64,
                "minLength": 1,
                "type": "string"
              }
            },
            "required": [
              "name",
              "expected_return"
            ],
            "type": "object"
          },
          "maxItems": 16,
          "minItems": 1,
          "type": "array"
        },
        "covariance": {
          "items": {
            "items": {
              "maximum": 1000000,
              "minimum": -1000000,
              "type": "number"
            },
            "maxItems": 16,
            "minItems": 1,
            "type": "array"
          },
          "maxItems": 16,
          "minItems": 1,
          "type": "array"
        },
        "risk_aversion": {
          "maximum": 1000000,
          "minimum": 0,
          "type": "number"
        },
        "select_count": {
          "maximum": 16,
          "minimum": 1,
          "type": "integer"
        }
      },
      "required": [
        "assets",
        "covariance",
        "select_count",
        "risk_aversion"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST",
        "PUT",
        "PATCH"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": true,
  "properties": {
    "input": {
      "additionalProperties": true,
      "properties": {
        "bodyType": {
          "const": "json"
        },
        "exampleUrl": {
          "format": "uri",
          "type": "string"
        },
        "method": {
          "const": "POST"
        },
        "schemaUrl": {
          "format": "uri",
          "type": "string"
        },
        "type": {
          "const": "http"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType"
      ],
      "type": "object"
    },
    "output": {
      "additionalProperties": true,
      "properties": {
        "exampleUrl": {
          "format": "uri",
          "type": "string"
        },
        "schemaUrl": {
          "format": "uri",
          "type": "string"
        },
        "type": {
          "const": "json"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}