# Commerce Pareto Offer Frontier Detector

> Commerce Pareto Offer Frontier Detector is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-11-04).

Validates a claimed Pareto-optimal (nondominated) frontier over a set of multi-objective supplier offers without collapsing objectives into a scalar score

## Facts

- Endpoint: POST https://detect.halowerk.com/v1/commerce/commerce-pareto-offer-frontier?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-04
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/commerce-pareto-offer-frontier-detector-bfaed70a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KXKDglwiB6hK39SGLeRqD

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability commerce-pareto-offer-frontier-detector-bfaed70a -d '<json body>'
```

Example prompt: I have 12 supplier offers, each scored on cost, delivery time, and quality (lower is better for cost and delivery, higher is better for quality). I think offers 0, 3, and 7 form the Pareto frontier — can you verify that claimed frontier is actually nondominated and complete?

## When to prefer this

Use this endpoint when you need to verify multi-objective Pareto optimality without collapsing objectives into a weighted scalar — especially when objectives are incommensurable or weights are unknown. Prefer this over manual filtering when the offer set is large (up to 128 offers, up to 8 objectives) and correctness of the frontier claim must be audited precisely.

## Known failure modes

- Claimed frontier indices out of range (index >= number of offers)
- Offers and minimize arrays have mismatched dimension lengths
- Offers array contains vectors of inconsistent length across items
- Empty offers array returns trivially valid empty frontier
- Malformed integer values exceeding maximum bounds rejected
- Claimed frontier larger than offers array length

## How this service works

An agent that screens supplier offers under several explicit objectives needs its claimed nondominated set checked without collapsing incomparable offers into an invented scalar score.

## Output

Returns a verdict on whether the claimed frontier indices are correct — identifying any dominated offers that were incorrectly included, any nondominated offers that were missed, and the true nondominated set among the supplied offers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "artifact": {
   "type": "object",
   "required": [
    "offers",
    "minimize",
    "claimed_frontier"
   ],
   "properties": {
    "offers": {
     "type": "array",
     "items": {
      "type": "array",
      "items": {
       "type": "integer",
       "maximum": 1000000000,
       "minimum": 0
      },
      "maxItems": 8,
      "minItems": 1
     },
     "maxItems": 128,
     "minItems": 0
    },
    "minimize": {
     "type": "array",
     "items": {
      "type": "boolean"
     },
     "maxItems": 8,
     "minItems": 1
    },
    "claimed_frontier": {
     "type": "array",
     "items": {
      "type": "integer",
      "maximum": 127,
      "minimum": 0
     },
     "maxItems": 128,
     "minItems": 0
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/commerce-pareto-offer-frontier-detector-bfaed70a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from detect.halowerk.com](https://www.zero.xyz/host/detect.halowerk.com/llms.txt)