# X402Node Funding Rate Arbitrage Aggregator

> X402Node Funding Rate Arbitrage Aggregator is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.015/call, status unknown (last checked 2026-10-01).

Returns cross-exchange perpetual funding rates for a symbol across OKX, Bybit, and Binance, with annualized rates, spread, cheapest/most expensive venue, and cash-and-carry arbitrage hints.

## Facts

- Endpoint: GET https://api.x402node.dev/market/funding-arb?utm_source=zero.xyz
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402node-funding-rate-arbitrage-aggregator-81934dd5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kTD1NGau24qlz1-ylVOid

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 x402node-funding-rate-arbitrage-aggregator-81934dd5
```

Example prompt: Show me the live funding rate spread for BTC perpetuals across OKX, Bybit, and Binance — I want to see which venue is cheapest, which is most expensive, the annualized rates, and whether there's a cash-and-carry arb opportunity right now.

## When to prefer this

Choose this endpoint when you need a single call to compare perpetual funding rates across OKX, Bybit, and Binance simultaneously for a given symbol, especially for identifying cross-exchange funding arbitrage opportunities or selecting the most cost-effective venue for a perpetual position. Prefer this over querying each exchange API individually when you want pre-computed spreads and annualized rates with an arbitrage signal already surfaced.

## Known failure modes

- Invalid or unsupported symbol returns an error or empty result
- One or more exchanges temporarily unreachable leads to partial data or error
- Payment not provided or insufficient USDC results in 402 Payment Required
- Rate limiting or quota exceeded returns a 429 error
- Symbol format mismatch (e.g. wrong case or separator) causes lookup failure

## How this service works

Cross-exchange perpetual funding-rate spread for a symbol across OKX, Bybit and Binance. Returns each venue funding rate, annualized, the cheapest and most expensive venue, the spread and a cash-and-carry funding arbitrage hint. Live aggregated derivatives data for funding arb and perp venue selection. funding rate arbitrage, perp funding, cross exchange spread, basis trade Accepts payment on Base or Solana — either network works.

## Output

A structured response containing per-venue funding rates (OKX, Bybit, Binance), each annualized, the identified cheapest and most expensive venue, the spread between them, and a plain-language cash-and-carry funding arbitrage hint indicating whether the spread is worth acting on.

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "symbol": {
       "type": "string",
       "description": "coin symbol, e.g. BTC, ETH, SOL (default BTC)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402node-funding-rate-arbitrage-aggregator-81934dd5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)