# x402-factory Edge Signal Detail

> x402-factory Edge Signal Detail is a paid API for AI agents from x402-factory.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).

Returns a model probability vs. market probability divergence signal with Kelly fraction hint for a specific prediction market slug

## Facts

- Endpoint: GET https://x402-factory.com/v1/edge/%7Bslug%7D
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-factory-edge-signal-detail-2b2ce996
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RelXtRB1v-ju69MBORFQu

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 x402-factory-edge-signal-detail-2b2ce996
```

Example prompt: Pull the edge signal for the 'who-wins-world-series-2025' market slug — I want to see the model probability vs. the current market price and get a Kelly fraction hint for sizing a position.

## When to prefer this

Use this endpoint when you need a quantitative edge signal for a specific prediction market — specifically the gap between a model-estimated probability and the current live market price, along with Kelly-optimal bet sizing. Prefer this over raw market data endpoints when you want a pre-computed divergence signal with risk annotations rather than raw order book or probability data alone. Best suited for algorithmic agents making or evaluating prediction market positions on Kalshi or Polymarket.

## Known failure modes

- Invalid or unknown slug returns an error or empty data
- Payment not included returns HTTP 402 with X-PAYMENT requirements
- Stub model active — model_p may be placeholder values until production model is wired
- Single-venue markets lack cross-venue price validation, flagged in risk_notes
- Stale or missing market data may result in outdated divergence values

## How this service works

Paid data APIs for AI agents: prediction-market analytics, weather intelligence, weather×market edge signals, and SEC/gov data. Paid endpoints use the x402 protocol (HTTP 402 + USDC on Base): call without payment to receive requirements, retry with an X-PAYMENT header. Machine-readable catalog: /llms.txt. Per-endpoint docs: /docs/{id}.

## Output

A JSON object containing: model_p (model-estimated probability), market_p (current market price/probability), divergence_history (time series of model-vs-market divergence), model_distribution (probability-weighted outcome distribution), kelly_fraction_hint (suggested fractional Kelly bet size), and risk_notes (caveats about data quality or model status). Also includes meta fields: sources, data_mode, freshness, endpoint, and generated_at timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "model_p": 0.0276,
   "market_p": 0.329,
   "risk_notes": [
    "model_p comes from the deterministic stub model — placeholder numbers until the production model is wired",
    "single-venue market; no cross-venue price check"
   ],
   "divergence_history": [
    {
     "t": "2026-07-18T12:00:00.000Z",
     "divergence": 0.3014
    }
   ],
   "model_distribution": [
    {
     "p": 0.15,
     "value": 25.1
    },
    {
     "p": 0.2,
     "value": 26.2
    },
    {
     "p": 0.3,
     "value": 27.5
    },
    {
     "p": 0.2,
     "value": 28.8
    },
    {
     "p": 0.15,
     "value": 29.9
    }
   ],
   "kelly_fraction_hint": 0.25
  },
  "meta": {
   "docs": "https://x402-factory.com/docs/edge.detail",
   "sources": [
    "kalshi",
    "polymarket",
    "stub-model"
   ],
   "version": "1.0.0",
   "endpoint": "/v1/edge/{slug}",
   "data_mode": "live",
   "freshness": "realtime",
   "request_id": "req_00000000",
   "generated_at": "2026-08-21T03:58:57.936Z"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-factory-edge-signal-detail-2b2ce996/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-factory.com](https://www.zero.xyz/host/x402-factory.com/llms.txt)