# Polymarket Whale Orderflow & Cross-Venue Arbitrage Spread Matrix

> Polymarket Whale Orderflow & Cross-Venue Arbitrage Spread Matrix is a paid API for AI agents from stealthguard-402.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-17).

Analyzes deep CLOB orderbook imbalances, tracks smart-money wallet activity, and computes Limitless/Polymarket cross-venue arbitrage spread matrices for prediction market trading signals.

## Facts

- Endpoint: POST https://stealthguard-402.onrender.com/v1/alpha/polymarket-whale-orderflow?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-whale-orderflow-cross-venue-arbitrage-spread-matrix-183817b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5mgxitzCH1KuqODI7xrZG

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 polymarket-whale-orderflow-cross-venue-arbitrage-spread-matrix-183817b5 -d '<json body>'
```

Example prompt: Pull the current Polymarket whale orderflow analysis — I want to see CLOB orderbook imbalances, smart-money wallet tracking signals, and the Limitless vs Polymarket cross-venue arbitrage spread matrix so I can spot any mispricing opportunities right now.

## When to prefer this

Choose this endpoint when you need integrated prediction market alpha combining orderbook depth analysis, whale wallet tracking, and cross-venue arbitrage in a single call — particularly when comparing Polymarket and Limitless pricing simultaneously. Prefer over simpler endpoints when you need both smart-money flow AND arbitrage spread signals together.

## Known failure modes

- Empty or malformed request body returns schema validation error
- Market data unavailable during low-liquidity periods may return stale or incomplete signals
- Payment of 0.02 USDC via x402 protocol required; unpaid requests will be rejected with 402
- Cross-venue spread matrix may be incomplete if Limitless API is unreachable
- Smart-money tracking signals may lag during periods of high on-chain congestion

## How this service works

Deep CLOB orderbook imbalance, smart-money wallet tracking, and Limitless/Polymarket cross-venue arbitrage spread matrix.

## Output

Returns a structured payload containing deep CLOB orderbook imbalance metrics, smart-money wallet tracking signals indicating large-player positioning, and a cross-venue arbitrage spread matrix comparing Limitless and Polymarket prices — surfacing actionable alpha signals for prediction market traders.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "min_order_usd": {
   "type": "number",
   "default": 10000,
   "description": "Minimum order size in USD to track"
  },
  "include_cross_venue": {
   "type": "boolean",
   "default": true,
   "description": "Include cross-venue arbitrage matrix"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-whale-orderflow-cross-venue-arbitrage-spread-matrix-183817b5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stealthguard-402.onrender.com](https://www.zero.xyz/host/stealthguard-402.onrender.com/llms.txt)