# Perp Funding Rates by Exchange > Perp Funding Rates by Exchange is a paid API for AI agents from derivs.duoleads.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-15). Returns current perpetual futures funding rates across 8 crypto exchanges for a given coin symbol, including per-venue rate, APR, mark price, index price, and next funding time. ## Facts - Endpoint: GET https://derivs.duoleads.com/v1/funding-rates?utm_source=zero.xyz - Price: $0.003/call - Payment: x402 - Status: unknown - Last checked: 2026-10-15 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/perp-funding-rates-by-exchange-c0149a30 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Nirl4JVrctVqC7-ql3sHA 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 perp-funding-rates-by-exchange-c0149a30 ``` Example prompt: What are the current perpetual funding rates for ETH across all exchanges — show me the APR on each venue and flag which one is highest and lowest right now? ## When to prefer this Use this endpoint when you need real-time, multi-exchange funding rate comparison for a specific coin symbol in a single call — particularly for funding arbitrage analysis, monitoring long/short carry costs, or gauging market sentiment across Bybit, Hyperliquid, dYdX, Gate, Kraken, Bitfinex, Deribit, and OKX simultaneously. Prefer this over exchange-native APIs when you need a normalized, cross-venue view without separate API keys. The x402 micropayment model ($0.003/call) makes it cost-effective for on-demand agent queries without subscription overhead. ## Known failure modes - Invalid or unknown coin symbol returns an error or empty venues array - Stale data flagged with stale:true on individual venue objects when exchange feed is delayed - Some venues may return null mark price if no active market - dYdX or other venues may return rate:0 if contract is newly listed or inactive - Payment failure via x402/USDC on Base if wallet balance is insufficient ## How this service works Perp funding rates, open interest, futures basis, implied volatility, liquidations, order book depth and a perp screener for crypto perpetual futures across 8 exchanges (Bybit, Hyperliquid, dYdX, Gate, Kraken, Bitfinex, Deribit, OKX), paid per call over x402 with USDC on Base. No account, no API key. ## Output A JSON object containing: per-venue funding rate data (mark price, index price, current rate, 8h-normalized rate, APR%, next funding time, predicted rate, interval hours, quote currency, staleness flag) for up to 8 exchanges; a summary with average APR, min/max APR venue, and spread; recent 24-hour funding history stats for the most active venue; and a coin/as_of timestamp for freshness. ## Request schema (JSON Schema) ```json { "type": "object", "$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", "required": [ "coin" ], "properties": { "coin": { "type": "string", "maxLength": 32, "minLength": 1, "description": "Coin symbol: BTC, ETH, SOL, PEPE ... (also BTCUSDT, BTC-PERP, XBT, 1000PEPE, kPEPE)." } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object" } } } } } ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "coin": "BTC", "colo": null, "as_of": "2026-10-14T23:00:00Z", "units": { "mark": "USD per coin (USDT/USDC at par)", "rate": "fraction per funding interval (0.0001 = 0.01 %)", "index": "USD per coin (oracle price on Hyperliquid and dYdX)", "times": "ISO 8601 UTC", "apr_pct": "simple annualised percent = rate * 24 / interval_h * 365 * 100", "rate_8h": "fraction per 8 hours = rate * 8 / interval_h", "interval_h": "hours between funding payments" }, "recent": { "as_of": "2026-10-14T23:00:00Z", "hours": 24, "stats": { "n": 24, "avg_apr_pct": 9.96273, "avg_rate_8h": 0.00009098383333, "max_rate_8h": 0.0001, "min_rate_8h": 0.0000346392, "pct_positive": 100 }, "venue": "hyperliquid", "prints": [ { "rate": 0.0000125, "time": "2026-10-13T23:00:00Z", "rate_8h": 0.0001 }, { "rate": 0.000006651, "time": "2026-10-14T00:00:00Z", "rate_8h": 0.000053208 } ] }, "venues": [ { "mark": 81631.8, "rate": 0.00003501, "as_of": "2026-10-14T23:00:00Z", "index": 81672.62, "quote": "USDT", "stale": false, "venue": "bybit", "symbol": "BTCUSDT", "apr_pct": 3.83359, "rate_8h": 0.00003501, "interval_h": 8, "predicted_rate": null, "next_funding_time": "2026-10-15T00:00:00Z", "contract_multiplier": 1 }, { "mark": 81624, "rate": 0.0000125, "as_of": "2026-10-14T23:00:00Z", "index": 81658, "quote": "USDC", "stale": false, "venue": "hyperliquid", "symbol": "BTC", "apr_pct": 10.95, "rate_8h": 0.0001, "interval_h": 1, "predicted_rate": null, "next_funding_time": "2026-10-15T00:00:00Z", "contract_multiplier": 1 }, { "mark": null, "rate": 0, "as_of": "2026-10-14T23:00:00Z", "index": 81538.38, "quote": "USD", "stale": false, "venue": "dydx", "symbol": "BTC-USD", "apr_pct": 0, "rate_8h": 0, "interval_h": 1, "predicted_rate": 0, "next_funding_time": "2026-10-15T00:00:00Z", "contract_multiplier": 1 } ], "summary": { "venues": 8, "max_apr": { "venue": "kraken", "apr_pct": 11.8121 }, "min_apr": { "venue": "dydx", "apr_pct": 0 }, "avg_apr_pct": 5.30702, "avg_rate_8h": 0.000048465931, "spread_apr_pct": 11.8121 }, "see_also": { "params": [ "min_apr", "min_volume_usd" ], "reason": "Looking for the widest … (truncated) ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/perp-funding-rates-by-exchange-c0149a30/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from derivs.duoleads.com](https://www.zero.xyz/host/derivs.duoleads.com/llms.txt)