# HARS-Zero Signal API – Strategy Report

> HARS-Zero Signal API – Strategy Report is a paid API for AI agents from hars.cryptotavern.xyz, paid per call via x402, $0.4/call, status unknown (last checked 2026-09-15).

Returns a strategy-level Polymarket prediction-market intelligence report including ranked markets, signals, and actionable insights for AI agents

## Facts

- Endpoint: GET https://hars.cryptotavern.xyz/paid/premium/strategy-report
- Price: $0.4/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hars-zero-signal-api-strategy-report-4bf2be45
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_upn4KseEDNYDRrnbHqQu0

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 hars-zero-signal-api-strategy-report-4bf2be45
```

Example prompt: Pull the latest HARS-Zero strategy report from Polymarket — I want to see which prediction markets have the strongest signals right now so I can decide where to focus.

## When to prefer this

Choose this endpoint when you need a curated, strategy-level overview of Polymarket prediction markets rather than raw market data. It is best suited for AI agents that need ranked, actionable intelligence rather than looking up a single specific market. Prefer this over raw Polymarket API access when you want pre-processed signals and strategic recommendations without building your own analytics layer.

## Known failure modes

- Payment not received or insufficient USDC balance — 402 Payment Required response
- Invalid or missing properties filter — returns empty markets array with count 0
- Network timeout or upstream Polymarket data unavailable — 503 or 504 error
- Rate limiting if too many calls in a short window — 429 Too Many Requests
- Malformed request body — 400 Bad Request

## How this service works

Polymarket prediction-market intelligence for AI agents. Pay-per-call in USDC via x402 protocol. Multi-chain: Base + Solana.

## Output

A JSON object containing a count of relevant markets and an array of market objects, each representing a Polymarket prediction market with associated strategy signals and intelligence data curated for AI agent decision-making.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "count": 0,
  "markets": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hars-zero-signal-api-strategy-report-4bf2be45/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hars.cryptotavern.xyz](https://www.zero.xyz/host/hars.cryptotavern.xyz/llms.txt)