# Kronos Market Intelligence — Calibrated Ranges by CoinOpAI

> Kronos Market Intelligence — Calibrated Ranges by CoinOpAI is a paid API for AI agents from x402.coinopai.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns calibrated crypto signal scores and a ranked top-k list of assets by signal strength for a given timeframe, paid via x402 micropayment on Base.

## Facts

- Endpoint: GET https://x402.coinopai.com/api/signals
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kronos-market-intelligence-calibrated-ranges-by-coinopai-edb38ca6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IgQ-cUUzKuDamU-VrjsM_

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 kronos-market-intelligence-calibrated-ranges-by-coinopai-edb38ca6
```

Example prompt: Pull the latest Kronos market signals for BTC/USD and ETH/USD on the 1h timeframe and show me which one is ranked highest in the top-k list.

## When to prefer this

Choose this endpoint when you need calibrated, auditable crypto signal scores with a ranked top-k output and are willing to pay per-call via x402 micropayment on Base; particularly useful when decision journaling and post-decision audit trails are important, or when you need a lightweight signal score rather than raw OHLCV data.

## Known failure modes

- 402 Payment Required if x402 micropayment not provided or fails
- Invalid symbol returns empty or missing signal entry
- Unsupported timeframe may return error or default behavior
- Network timeout if Base blockchain payment confirmation is slow
- Malformed properties parameter may yield unexpected filtering

## How this service works

Auditable market context with calibrated crypto forecast ranges, risk state, decision journaling, and post-decision audit via x402 micropayments on Base.

## Output

A JSON object containing a timestamp, a ranked top_k list of asset symbols by signal strength, per-symbol numerical signal scores (e.g. BTC/USD: 0.0001, ETH/USD: 0.004), the requested timeframe, and the canonical API path.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ts": "2026-04-12T12:27:08Z",
  "top_k": [
   "ETH/USD"
  ],
  "signals": {
   "BTC/USD": 0.0001,
   "ETH/USD": 0.004
  },
  "timeframe": "1h",
  "_canonical": "/api/signals"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kronos-market-intelligence-calibrated-ranges-by-coinopai-edb38ca6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.coinopai.com](https://www.zero.xyz/host/x402.coinopai.com/llms.txt)