# CRYPTYX Funding Rate API

> CRYPTYX Funding Rate API is a paid API for AI agents from cryptyx.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns current perpetual futures funding rates with z-score and annualized rate for a given digital asset

## Facts

- Endpoint: GET https://cryptyx.ai/api/funding-rate
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cryptyx-funding-rate-api-bd0b118c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nXKw7dEDZZUToo_HmckWP

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-funding-rate-api-bd0b118c
```

Example prompt: What's the current funding rate for BTC on CRYPTYX — give me the z-score and annualized rate so I can tell if it's at an extreme.

## 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) for a specific crypto asset. Prefer this over raw exchange APIs when you want pre-computed intelligence signals rather than raw tick data, or when building trading strategies that need to assess whether funding rates are at historical extremes.

## Known failure modes

- Unknown or unsupported asset symbol returns empty rates array or error
- Missing asset parameter may return default or error response
- Rate limiting if too many requests are made in quick succession
- Stale data if upstream exchange feeds are delayed

## How this service works

Aggregated-exchange daily perpetual funding rate per asset, last N days. Raw feed — no annualisation, no z-score. Cheap historical input for carry-trade backtests and crowding diagnostics. Coverage: pass any asset in the CRYPTYX 200+ tracked universe (BTC, ETH, SOL, top-cap + long-tail).

## Output

Returns an array of funding rate objects for the requested asset, each containing the asset symbol, current funding rate (e.g. 0.0001), annualized rate (e.g. 0.036 = 3.6%), and a z-score indicating how extreme the current rate is relative to historical norms (e.g. -0.64).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "asset": {
   "type": "string",
   "description": "Asset symbol (e.g. BTC, ETH, SOL)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "rates": [
  {
   "asset": "BTC",
   "z_score": -0.64,
   "annualized": 0.036,
   "funding_rate": 0.0001
  }
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cryptyx-funding-rate-api-bd0b118c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptyx.ai](https://www.zero.xyz/host/cryptyx.ai/llms.txt)