# Kronos Crypto Market-Pulse Feed

> Kronos Crypto Market-Pulse Feed 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 cursor-based, material-change-only feed of funding, open-interest, and alert state for up to 5 crypto assets, with explicit no-change packets and a next-poll timestamp.

## Facts

- Endpoint: GET https://kronossignals.com/api/v1/market-pulse
- 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-crypto-market-pulse-feed-5f881bf1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6fp2f3li88LcQjQUY8prV

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-crypto-market-pulse-feed-5f881bf1
```

Example prompt: Check Kronos Market Pulse for any material changes in funding rate, open-interest regime, or alerts for BTC, ETH, and SOL since my last poll — pass in my previous cursor so we only get what actually changed.

## When to prefer this

Choose this endpoint when you need efficient, incremental polling for crypto market microstructure signals — specifically funding rates, open-interest regimes, and alert sets — without re-fetching unchanged data. Ideal for autonomous agents that run on a tight polling loop and need explicit no-change semantics plus a server-derived next-poll time. Prefer it over full-snapshot endpoints when bandwidth efficiency and change-detection latency matter, or when you need to track up to 5 assets simultaneously in one call.

## Known failure modes

- Invalid or expired cursor returns an error or falls back to a full snapshot
- More than 5 assets in the comma-separated list causes a validation error
- Unknown asset slug returns an error or is silently dropped
- Upstream data source stale flag triggers a recovered/stale status rather than fresh data
- Payment not settled via x402 returns a 402 Payment Required response

## How this service works

Material-change feed for up to 5 crypto assets. Pass the cursor from your last call and receive ONLY what changed since: funding sign or band, funding trend, open-interest regime, alert set, and source stale/recovered. Returns an explicit no-change packet rather than pretending, plus per-asset freshness and a next-poll time derived from the real 5-minute collection cadence. Market data, not advice. $0.02 USDC via x402.

## Output

A change-only packet per tracked asset containing: funding sign or band, funding trend, open-interest regime, active alert set, and data-source staleness/recovery status — plus per-asset freshness timestamps, a next-poll datetime derived from the 5-minute collection cadence, and a next_cursor for the subsequent call. Returns an explicit no-change packet when nothing has moved.

## 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": {
      "since": {
       "type": "string",
       "description": "Opaque cursor returned as next_cursor by a previous call. Omit on first call."
      },
      "assets": {
       "type": "string",
       "description": "Comma-separated asset slugs, max 5. Defaults to btc."
      }
     }
    }
   },
   "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-crypto-market-pulse-feed-5f881bf1/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)