# x402.sashco.ca Signals Subscribe Day

> x402.sashco.ca Signals Subscribe Day is a paid API for AI agents from x402.sashco.ca, paid per call via x402, $2/call, status unknown (last checked 2026-10-11).

Subscribes to a 24-hour stream of real-time prediction-market signals pushed to your callback URL, filtered by persona and market, with sports markets excluded.

## Facts

- Endpoint: POST https://x402.sashco.ca/signals/subscribe/day?utm_source=zero.xyz
- Price: $2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-sashco-ca-signals-subscribe-day-2eb744b7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nabJEqHCOBjjHbOJZNHbZ

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 x402-sashco-ca-signals-subscribe-day-2eb744b7 -d '<json body>'
```

Example prompt: Subscribe me to a 24-hour push-notification feed of Polymarket signals filtered to my political-events persona and send each signal as it fires to https://mybot.example.com/webhook.

## When to prefer this

Choose this endpoint when you need real-time, event-driven delivery of prediction market signals to a webhook rather than polling. Ideal for trading bots, alert pipelines, or data-capture workflows that require sub-second signal delivery. Prefer over polling-based alternatives when latency matters and your infrastructure can receive POST callbacks.

## Known failure modes

- Missing or invalid callback_url returns an error at subscribe time
- Sports-category markets cannot be re-enabled even if specified in filters
- Callback URL unreachable causes silent signal delivery failures or retries
- Payment of $2 USDC not fulfilled results in subscription rejection
- Subscription expires after 24 hours with no auto-renewal

## 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 acknowledging the 24-hour signal feed is active; thereafter, each fired signal matching your persona/market filters is POSTed in real time to the provided callback_url as a webhook event. Sports-category markets are always excluded regardless of filter settings.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "required": [
    "method"
   ]
  }
 },
 "description": "24h signal push subscription: fired signals matching your filters POSTed to callback_url (required). Sports excluded. Pricing math: GET /track-record."
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-sashco-ca-signals-subscribe-day-2eb744b7/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)