---
name: funding-rates.api.klymax402.com
description: This host provides a single endpoint that returns live perpetual futures funding rates for a specified token symbol across major centralized exchanges (Binance, Bybit, OKX). It returns per-exchange rates, annualized rates, open interest, mark price, and aggregate summary metrics. It does not cover spot prices, DeFi yields, or arbitrage scanning.
host: funding-rates.api.klymax402.com
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# funding-rates.api.klymax402.com

funding-rates.api.klymax402.com is a narrow, focused data host serving agents that need current perpetual futures funding rate data. It targets trading agents and portfolio monitors that need to assess funding costs, compare rates across Binance, Bybit, and OKX, or gauge market sentiment via funding spreads for a specific asset. It does not replace broader market data or DeFi yield hosts.

## When to use this host

Use this host when an agent needs to check current perpetual futures funding rates for a specific token across Binance, Bybit, or OKX — for example, to assess the cost of holding a leveraged position or to compare funding sentiment across venues. Do not use it for spot or DEX pricing (use dex_get_swap_quote instead), DeFi yield comparisons (use defi_find_best_yields instead), or systematic cross-exchange funding arbitrage scanning (use perp_scan_funding_arbitrage instead). This host is appropriate for single-asset funding rate lookups only; it is not a multi-asset screener or a historical funding rate archive.

## Capabilities

### Perpetual Funding Rate Data

Retrieves live funding rate data for perpetual futures contracts on a given token, including per-exchange breakdown, annualized rates, open interest, and mark price summary metrics.

- **`fetch-perpetual-funding-rates`** — Returns live perpetual futures funding rates for a given token symbol across major exchanges, including per-exchange rate, annualized rate, open interest, mark price, and summary metrics.

## Skill reference

### `fetch-perpetual-funding-rates`

**Perpetual Futures Funding Rates** — Returns live perpetual futures funding rates for a given token symbol across major exchanges, including per-exchange rate, annualized rate, open interest, mark price, and summary metrics.

*Use when:* Use when an agent needs to monitor current funding costs on perpetual futures positions, compare funding rates across exchanges (Binance, Bybit, OKX), or time entries based on funding sentiment and spread for a specific asset.

*Not for:* Do not use for spot prices — use dex_get_swap_quote instead. Do not use for DeFi yield comparisons — use defi_find_best_yields instead. Do not use for cross-exchange funding arbitrage scanning — use perp_scan_funding_arbitrage instead.

**Inputs:**

- `symbol` (string, required) — Token symbol for the perpetual futures pair to query (e.g. BTC, ETH, SOL).

**Returns:** Returns symbol, pair, exchange count, a summary object with average/annualized rates, spread, sentiment, and total open interest, plus a rates array with per-exchange fundingRate, annualizedRate, nextFundingTime, openInterest, and markPrice.

**Example:** `GET https://funding-rates.api.klymax402.com/api/rates?symbol=ETH`

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