# Cryptyx Perpetual Futures Funding Rate

> Cryptyx Perpetual Futures Funding Rate is a paid API for AI agents from www.cryptyx.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the current perpetual futures funding rate for a crypto asset, including annualized rate and z-score vs trailing 30-day distribution, sourced from Deribit and CoinGlass.

## Facts

- Endpoint: GET https://www.cryptyx.ai/api/funding-rate
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cryptyx-perpetual-futures-funding-rate-5cf2b936
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KASetAYsKJFRPRfBR4GPV

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-perpetual-futures-funding-rate-5cf2b936
```

Example prompt: What's the current BTC perpetual futures funding rate right now — give me the annualized rate and z-score so I can see if it's stretched relative to the last 30 days.

## When to prefer this

Use this endpoint when you need real-time perpetual futures funding rate data enriched with statistical context (z-score, annualized rate) rather than a raw feed. Preferred over generic exchange APIs when you want cross-source aggregation from Deribit and CoinGlass in a single call, especially for carry trade analysis, crowding detection, or timing entries when funding reaches statistical extremes.

## Known failure modes

- Unknown or unsupported asset symbol returns empty rates array or 400 error
- Upstream data feed from Deribit or CoinGlass temporarily unavailable — may return stale or missing data
- Missing required query param defaults to no asset filtering — may return full universe or error
- Rate limit exceeded for high-frequency polling — 402 or 429 response

## How this service works

CRYPTYX | institutional-grade crypto intelligence: 150+ signals, 440+ metrics, 200+ assets. | Daily aggregated-exchanges close funding rate (fr_close) for one asset, last N days, sourced from compat.fut_funding_1d (CoinGlass/Deribit, UTC-1 anchor day, ALL_EXCHANGES scope). Response is a raw JSON array of {asof_day, asset, fr_close} rows ordered DESC — no wrapper object. No annualization, no z-score, no FUT_FUNDING_STRESS signal context — use /api/ai/signals or composite endpoints for enrichment. Cheap historical funding feed for carry-trade backtests and crowding diagnostics.

## Output

Returns a JSON array with the asset symbol, current funding rate, annualized funding rate, and z-score vs the trailing 30-day distribution — useful for identifying carry trade setups, crowding signals, and extreme funding conditions.

## 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",
     "required": [
      "asset"
     ],
     "properties": {
      "days": {
       "type": "number",
       "description": "Number of trailing days to return (1-365, default 30)."
      },
      "asset": {
       "type": "string",
       "description": "Asset symbol (e.g. BTC, ETH, SOL). Trimmed and uppercased server-side."
      }
     }
    }
   },
   "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/cryptyx-perpetual-futures-funding-rate-5cf2b936/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.cryptyx.ai](https://www.zero.xyz/host/www.cryptyx.ai/llms.txt)