{"uid":"cap_pjWphUMt4IVXU0_0WmrX6","slug":"fundingfeed-cross-exchange-perpetual-funding-rate-open-interest-05889d86","name":"FundingFeed — Cross-Exchange Perpetual Funding Rate & Open Interest Aggregator","description":"Cross-exchange perpetual funding rate arbitrage, open interest, and best-execution for BTC/ETH/SOL. Aggregates live perpetual venues (OKX, Bybit, Gate.io, HTX, Hyperliquid, BingX, Bitget, Kraken, Coinbase, MEXC) into one call: current funding rate per venue, min/max/mean annualized funding, the cross-venue funding arbitrage spread, next funding time per venue, total open interest in USD with a per-venue breakdown, and real top-of-book best bid/ask. Use it to find the best funding rate arbitrage opportunity across exchanges, compare funding rates between Bybit and OKX for a specific coin, check annualized carry cost for a long/short funding arb, identify which exchange has the most negative funding rate right now, scan for cross-venue funding divergences in crypto perpetuals, monitor funding spreads to time a cash-and-carry strategy, detect crowded positioning from open interest, and route orders to the venue with the best price. Paid per call: 0.005 USDC on Base, Polygon, Solana or Tempo (MPP, no gas). FIRST CALL FREE per wallet — send header \"X-WALLET: 0x<your Base address>\" and get the full feed with no payment. Try it before you pay.","url":"https://funding-feed.kaminariouji.workers.dev/funding?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"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","POST"],"type":"string"},"queryParams":{"type":"object","additionalProperties":true}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"note":"Aggregated from public REST APIs. Not financial advice. Verify independently.","symbol":"BTCUSDT","funding":{"count":5,"byExchange":[{"exchange":"okx","annualizedPct":10.6,"nextFundingAt":"2026-09-21T08:00:00.000Z"}],"arbSpreadPct":7.23,"maxAnnualizedPct":10.95,"minAnnualizedPct":3.72,"meanAnnualizedPct":6.83},"exchangesOk":7,"generatedAt":"2026-09-21T00:00:00.000Z","openInterest":{"count":5,"meanUsd":2660000000,"totalUsd":13300000000,"byExchange":[{"oiUsd":5000000000,"exchange":"okx"}]},"bestExecution":{"prices":[{"ask":116010,"bid":116000,"last":116005,"exchange":"okx"}],"bestAsk":{"price":116010,"exchange":"okx"},"bestBid":{"price":116000,"exchange":"gate"},"spreadPct":0.0086},"exchangesQueried":11}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Gc43lVQwUHe1RqDLKtNp3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Aggregates live perpetual funding rates, annualized carry spreads, open interest, and best bid/ask across 10+ exchanges (OKX, Bybit, Gate.io, HTX, Hyperliquid, BingX, Bitget, Kraken, Coinbase, MEXC) for BTC, ETH, or SOL in a single call","exampleAgentPrompt":"Pull the current cross-exchange funding rates for BTC — show me the annualized carry spread, which venue has the best and worst rate right now, the total open interest breakdown, and where I'd get the best bid and ask if I wanted to execute.","exampleUseCases":[{"title":"Funding arb opportunity scanner","prompt":"Check all the major perp exchanges for ETH and tell me which two have the biggest funding rate divergence right now — give me the annualized spread so I can size a cash-and-carry arb."},{"title":"Crowded positioning detection","prompt":"What's the total open interest in BTC perps across OKX, Bybit, and the other top venues right now, and which exchange is carrying the most? I want to know if positioning looks crowded."},{"title":"Best execution venue routing","prompt":"I'm about to open a SOL perp position — which exchange has the best ask price right now, and what's the current funding rate there so I know the carry cost?"}],"resultDescription":"Returns a JSON object with: the queried symbol, per-exchange funding rate objects (exchange name, annualized funding %, next funding timestamp), aggregate funding stats (min/max/mean annualized %, cross-venue arb spread %, count, exchanges OK/queried), total and per-exchange open interest in USD, and a best-execution block with top-of-book bid/ask per exchange plus global best bid and best ask (price + exchange name) and the spread percentage. A generatedAt timestamp and a disclaimer note are also included.","failureModes":["One or more upstream exchanges may be unreachable — exchangesOk will be less than exchangesQueried, reducing coverage","Stale data if an exchange API is slow or rate-limiting — check generatedAt timestamp","Invalid or unsupported symbol returns an error or empty funding array","Network timeout on the Cloudflare Worker edge if upstream APIs are down","Payment not included or insufficient — x402 payment required error (0.005 USDC)"],"whenToPreferThis":"Choose this endpoint when you need a single aggregated view of perpetual funding rates, open interest, and best execution across 10+ venues simultaneously — rather than calling each exchange API individually. It is ideal for funding arbitrage screening, cash-and-carry carry cost analysis, open interest concentration checks, and best-price routing for BTC, ETH, or SOL perps. Prefer it over single-exchange APIs when cross-venue comparison is the goal.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T02:41:26.226Z","isFirstParty":false,"canonicalSlug":"fundingfeed-cross-exchange-perpetual-funding-rate-open-interest-af86e743"}