# SignalPulse Polymarket Cross-Category Scanner

> SignalPulse Polymarket Cross-Category Scanner is a paid API for AI agents from signalpulse.theaslangroupllc.com, paid per call via x402, $1.99/call, status unknown (last checked 2026-09-15).

Scans open Polymarket prediction markets within a specified category against microstructure, whale positioning, base rates, and category intelligence to return ranked value opportunities with proprietary probability estimates vs market prices

## Facts

- Endpoint: GET https://signalpulse.theaslangroupllc.com/api/signal/polymarket
- Price: $1.99/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalpulse-polymarket-cross-category-scanner-1020aaa2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EhYesY1UGPzUaEDsW4Gd7

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 signalpulse-polymarket-cross-category-scanner-1020aaa2
```

Example prompt: Scan the Polymarket politics category for value opportunities with a short-term horizon and tell me which open contracts are most mispriced based on whale positioning and base rates.

## When to prefer this

Choose this endpoint when you need a broad cross-market scan within a specific Polymarket category to surface the highest-edge opportunities, rather than analyzing a single named market or event. It is particularly valuable when you want to combine multiple intelligence layers (CLOB microstructure, whale flows, base rates) in a single ranked output without manually querying individual contracts. Use the horizon parameter to tune whether short-term liquidity signals or long-term base rates dominate the ranking.

## Known failure modes

- Missing required ?category= parameter returns an error rather than scanning all categories
- Invalid category value returns an error or empty result
- No open markets in a category returns an empty scan (not charged)
- Network or data provider outage may cause stale or unavailable microstructure data
- Whale positioning data may lag real-time market activity by a short window

## How this service works

Polymarket cross-category scanner for AI trading agents. Scans open markets in one category (crypto, economics, geopolitics, politics, sports, esports, entertainment, weather, ai-tech) against CLOB microstructure, whale positioning, base rates, and category intelligence layers; returns ranked value opportunities with our probability vs the market price. Requires ?category=. Optional ?horizon=short|mid|long tunes which intelligence layers lead. Never charged for an empty scan.

## Output

A ranked list of open Polymarket contracts within the requested category, each showing the market's current implied probability versus SignalPulse's proprietary probability estimate, edge score, and supporting signals from CLOB microstructure, whale positioning, base rates, and category-specific intelligence layers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signalpulse-polymarket-cross-category-scanner-1020aaa2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signalpulse.theaslangroupllc.com](https://www.zero.xyz/host/signalpulse.theaslangroupllc.com/llms.txt)