# Polymarket Trading Signals API – Monthly Subscription

> Polymarket Trading Signals API – Monthly Subscription is a paid API for AI agents from x402.sashco.ca, paid per call via x402, $33/call, status unknown (last checked 2026-10-10).

Subscribes a user to monthly push notifications and access for high-confidence Polymarket trading signals, including smart-money wallet tracking and ML-based edge detection.

## Facts

- Endpoint: POST https://x402.sashco.ca/signals/subscribe/month?utm_source=zero.xyz
- Price: $33/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-trading-signals-api-monthly-subscription-a54d95e0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_atRWzrdfhKt3zg_uz7Fxd

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-trading-signals-api-monthly-subscription-a54d95e0 -d '<json body>'
```

Example prompt: Sign me up for a one-month Polymarket trading signals subscription so I get push notifications whenever a high-confidence smart-money or insider-pattern signal fires on any prediction market — pay with USDC on Base via x402.

## When to prefer this

Choose this endpoint when you want ongoing, proactive alerting for Polymarket trading signals over a full month rather than one-off per-query lookups. It is ideal for automated trading pipelines, research monitoring, or any workflow where missing a signal fire is costly and polling is impractical. Prefer it over per-call signal endpoints when the volume of signals expected over a month makes a flat monthly subscription more cost-effective than pay-per-signal pricing.

## Known failure modes

- Insufficient USDC balance on Base wallet — payment fails and subscription is not created
- Invalid or missing x402 payment header — returns 402 Payment Required
- Duplicate active subscription — may return conflict or silently extend
- Push notification endpoint not configured — signals fire but cannot be delivered
- Network timeout during payment processing — subscription state may be ambiguous

## How this service works

Wallet reputation and trading-signal detection for Polymarket prediction markets -- combining smart-money wallet tracking, insider-pattern detection, and a custom ML edge model. Wallet reputation scores, per-market wallet flow by persona, a free signal-accuracy track record, and push notifications when a high-confidence signal fires. Pay-per-call via x402 (USDC on Base). Machine-readable pricing: GET /.well-known/x402.

## Output

A subscription confirmation object indicating that the monthly plan is active, along with access credentials or webhook configuration for receiving push notifications when high-confidence trading signals fire on Polymarket prediction markets.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "required": [
    "method"
   ]
  }
 },
 "description": "30-day signal push subscription. Same delivery and exclusions as the day tier."
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "format": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-trading-signals-api-monthly-subscription-a54d95e0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.sashco.ca](https://www.zero.xyz/host/x402.sashco.ca/llms.txt)