# Kronos x402 Crypto Derivatives Signals API

> Kronos x402 Crypto Derivatives Signals API is a paid API for AI agents from kronossignals.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns real-time derivatives market intelligence signals (funding rate, open interest, basis, volume) for a specified crypto asset via paid x402 micropayment

## Facts

- Endpoint: GET https://kronossignals.com/api/v1/signals/%7Basset%7D
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kronos-x402-crypto-derivatives-signals-api-6453d544
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9I5rNwqHjb2cQWxw4yaFc

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-x402-crypto-derivatives-signals-api-6453d544
```

Example prompt: Pull the latest derivatives signals for BTC-USD — I want to see the current funding rate, whether it's trending up or down, and how open interest has changed in the last hour.

## When to prefer this

Choose this endpoint when you need real-time crypto perpetual futures intelligence — specifically funding rates, open interest trends, and basis — for a named asset, and are comfortable with micropayment-per-call x402 billing. Prefer this over free alternatives when you need structured, heuristic-processed signal output with a human-readable interpretation rather than raw exchange data.

## Known failure modes

- Payment not included or invalid x402 payment header — 402 Payment Required response
- Unknown or unsupported asset symbol — likely 404 or error payload
- Data source (Bybit) temporarily unavailable — available field may be false
- Stale data due to up to 5-minute lag — as_of timestamp should be checked
- Malformed asset path parameter — request error

## How this service works

Paid market-intelligence API over x402

## Output

A JSON object containing: a plain-English 'read' summarizing the signal, the asset identifier, mark price, index price, basis, funding rate, annualized funding rate, funding trend direction, open interest, 1-hour OI change (absolute and percent), 24h volume, next funding time, funding interval in hours, number of samples, data source (Bybit), availability flag, cache TTL, timestamp, and a disclaimer that this is a heuristic signal with up to 5-minute data lag.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "read": "Elevated positive funding (10.9% ann., trend rising); OI growing. Heuristic only.",
  "as_of": "2026-07-02T10:00:00.000Z",
  "asset": "BTC-USD",
  "basis": 0.000186,
  "inputs": {
   "samples": 12,
   "mark_price": 107500,
   "volume_24h": 12000000,
   "data_source": "bybit",
   "index_price": 107480,
   "funding_rate": 0.0001,
   "open_interest": 85000,
   "next_funding_time": "2026-07-02T16:00:00.000Z"
  },
  "samples": 12,
  "available": true,
  "disclaimer": "Heuristic signal. Not financial advice. Data lags up to 5 minutes.",
  "mark_price": 107500,
  "volume_24h": 12000000,
  "data_source": "bybit",
  "index_price": 107480,
  "funding_rate": 0.0001,
  "oi_change_1h": {
   "abs": 320,
   "pct": 0.3765
  },
  "cache_ttl_sec": null,
  "funding_trend": "rising",
  "open_interest": 85000,
  "next_funding_time": "2026-07-02T16:00:00.000Z",
  "funding_interval_hours": 8,
  "funding_rate_annualized": 0.1095
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kronos-x402-crypto-derivatives-signals-api-6453d544/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kronossignals.com](https://www.zero.xyz/host/kronossignals.com/llms.txt)