# Polymarket CLOB Alpha Divergence Scanner

> Polymarket CLOB Alpha Divergence Scanner is a paid API for AI agents from stealthguard-402.onrender.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-19).

Scans Polymarket CLOB orderbooks for volume spikes and smart-money spread divergence, returning sanitized alpha signals

## Facts

- Endpoint: POST https://stealthguard-402.onrender.com/v1/polymarket_alpha_divergence?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-clob-alpha-divergence-scanner-cf791b01
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gEw-Pe7a1XAn2ZdbPVOnW

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-clob-alpha-divergence-scanner-cf791b01 -d '<json body>'
```

Example prompt: Scan Polymarket's CLOB orderbooks right now for any volume spikes or smart-money spread divergence and give me the sanitized alpha signals.

## When to prefer this

Choose this endpoint when you need real-time, sanitized alpha signals specifically from Polymarket CLOB orderbooks, particularly for detecting volume spikes and smart-money spread divergence. Prefer it over generic market data endpoints because it includes CanaryGuard sanitization, making it safe for autonomous agent pipelines. Use it when you want actionable prediction market signals rather than raw orderbook data.

## Known failure modes

- Polymarket CLOB API unavailable or rate-limited — returns error or stale data
- No significant divergence detected — returns empty or neutral signal set
- Payment validation failure — call blocked if x402 payment header is missing or invalid
- Malformed POST body — returns schema validation error
- Render.com cold start delay — first call after idle period may time out

## How this service works

Scans Polymarket CLOB orderbooks for volume spikes and smart-money spread divergence, returning CanaryGuard sanitized alpha.

## Output

Returns CanaryGuard-sanitized alpha signals including detected volume spikes and smart-money spread divergence metrics from Polymarket CLOB orderbooks, pre-screened to remove prompt injection and malicious content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "default": 15,
   "description": "Max markets to analyze"
  },
  "category": {
   "type": "string",
   "default": "crypto",
   "description": "Category filter (crypto, politics, fed, ai)"
  },
  "strict_mode": {
   "type": "boolean",
   "default": true,
   "description": "Deterministic prompt-injection sanitization strictness"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-clob-alpha-divergence-scanner-cf791b01/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)