# CRYPTYX Signal Events

> CRYPTYX Signal Events is a paid API for AI agents from cryptyx.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Retrieves historical signal-triggered events for a digital asset over a specified lookback window, indicating which intelligence signals fired on which days

## Facts

- Endpoint: GET https://cryptyx.ai/api/asset/signal-events
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cryptyx-signal-events-59ece7a8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7OHdBoILtICZ4zeTvQDx0

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 cryptyx-signal-events-59ece7a8
```

Example prompt: Can you check CRYPTYX for any signal events that fired on BTC over the last 30 days — specifically things like volatility compression or other intelligence signals?

## When to prefer this

Use this endpoint when you need to know which specific named intelligence signals fired for a given crypto asset over a historical window — particularly for backtesting, alerting pipelines, or explaining recent price behavior in terms of structured signal triggers. Prefer this over generic price APIs when you need pre-computed, labeled signal events rather than raw OHLCV data.

## Known failure modes

- Missing required 'symbol' parameter returns a 400-level error
- Unknown or unsupported asset symbol returns empty events array or error
- Invalid 'days' value (negative or non-numeric) returns a validation error
- Service unavailable or upstream data gap returns a 5xx error
- Insufficient payment (x402) results in payment-required response before data is delivered

## How this service works

Per-asset triggered signal ledger over 7-365 days, A/B grades only. Per event: signal, direction (long/short/neutral), z, confidence, horizon, grade, close price, and realised 7-day forward return. Coverage: pass any asset in the CRYPTYX 200+ tracked universe (BTC, ETH, SOL, top-cap + long-tail).

## Output

A list of signal event objects, each containing the date the signal was evaluated, the signal identifier (e.g. VOL_COMPRESSION_7v30), and a boolean indicating whether the signal was triggered on that day

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "symbol"
 ],
 "properties": {
  "days": {
   "type": "number",
   "description": "Lookback days"
  },
  "symbol": {
   "type": "string",
   "description": "Asset symbol"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "events": [
  {
   "day": "2026-04-25",
   "signal_id": "VOL_COMPRESSION_7v30",
   "triggered": true
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cryptyx-signal-events-59ece7a8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptyx.ai](https://www.zero.xyz/host/cryptyx.ai/llms.txt)