# Kronos Signals Crypto Market Digest

> Kronos Signals Crypto Market Digest is a paid API for AI agents from kronossignals.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Returns a structured composite market digest for a single crypto asset, bundling derivatives signals, market regime, realized volatility, fear-greed index, and ML forecast probability in one call.

## Facts

- Endpoint: GET https://kronossignals.com/api/v1/digest/btc
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kronos-signals-crypto-market-digest-39fa58ba
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ap1YdIQaCjm6LcIbLchfF

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-signals-crypto-market-digest-39fa58ba
```

Example prompt: Can you pull the full Kronos market digest for Bitcoin — I want the funding rate, basis, open interest, market regime, realized volatility, fear-greed index, and ML forecast all in one shot?

## When to prefer this

Use this endpoint when an AI agent needs a single-call, comprehensive market intelligence bundle for a crypto asset rather than fetching derivatives, volatility, sentiment, and forecasts from separate endpoints. Ideal as a 'start here' context-gathering step before any trading decision, alert generation, or research task. Prefer over individual signal endpoints when breadth of coverage matters more than depth on a single metric.

## Known failure modes

- Unsupported asset slug returns an error — only 16 specific assets are supported (btc, eth, sol, bnb, xrp, doge, ada, avax, link, dot, ltc, trx, bch, atom, etc.)
- ML forecast probability field is only populated for BTC, ETH, and SOL; other assets return null or omit that field
- Payment failure via x402 if USDC balance or payment header is missing/invalid
- Rate limiting or upstream data source latency may cause stale or delayed signals
- Malformed asset query parameter returns a 400 or equivalent error

## How this service works

Structured market digest for any of the 16 supported crypto assets. Deterministic composite from live signals: derivatives (funding, basis, OI), market regime, 30d realized volatility, fear-greed index, and ML forecast probability (BTC/ETH/SOL only). Single-call 'start here' bundle for autonomous agents. $0.02 USDC via x402. Live track record at /api/stats: ~54% directional hit, ~70% in-range over 15k+ scored forecasts — measured on served predictions, not a backtest.

## Output

A structured JSON bundle containing derivatives signals (funding rate, basis, open interest), market regime classification, 30-day realized volatility, fear-greed index reading, and (for BTC/ETH/SOL) an ML forecast probability — all sourced live for the requested asset.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "asset": {
       "type": "string",
       "description": "Asset slug — btc, eth, sol, bnb, xrp, etc."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kronos-signals-crypto-market-digest-39fa58ba/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)