{"uid":"cap_vmahxUKwx_ds6mjiaElB0","slug":"fundingfeed-cross-exchange-perpetual-funding-rate-open-interest-af86e743","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/tempo?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":"Read live from Tempo's transfer index and balances API. Activity score is a transparent heuristic, not financial advice.","chain":"eip155:4217","address":"0xdb5aa553feeb2c3e3d03e8360b36fb0f7e480671","activity":{"byToken":{"USDC.e":107},"inbound7d":107,"outbound7d":0,"transfers7d":107,"volumeUsd7d":{"in":1.992,"out":0,"total":1.992},"lastTransfer":"2026-09-23T15:39:07.000Z","transfers24h":9,"firstTransfer7d":"2026-09-16T21:06:30.000Z","distinctCounterparties7d":43},"balances":[{"name":"Bridged USDC (Stargate)","amount":"153.575","symbol":"USDC.e","address":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"verified":true}],"chainName":"Tempo","generatedAt":"2026-09-23T00:00:00.000Z","activityScore":84}},"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_jM5wWPiuqLnoz2DGytrHL","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, open interest, and best bid/ask across 10 major crypto exchanges (OKX, Bybit, Gate.io, HTX, Hyperliquid, BingX, Bitget, Kraken, Coinbase, MEXC) for BTC, ETH, and SOL in a single call","exampleAgentPrompt":"Pull the latest cross-exchange funding rates for BTC right now — I want to see which venue has the highest and lowest annualized funding, the arbitrage spread, total open interest, and the best bid/ask so I can figure out where to leg into a cash-and-carry.","exampleUseCases":[{"title":"Cash-and-carry strategy timing","prompt":"Show me the annualized funding rate spread for ETH across all venues right now — I want to identify the best long/short pair for a cash-and-carry and see when the next funding event hits on each exchange."},{"title":"Crowded positioning detection","prompt":"Check total open interest for BTC across OKX, Bybit, Hyperliquid, and the other major perp venues — I'm trying to figure out if longs are overcrowded before I put on a position."},{"title":"Best execution venue selection","prompt":"I'm about to trade SOL perpetuals — can you pull the top-of-book best bid and ask across all supported exchanges so I know which venue to route my order to for the tightest spread?"}],"resultDescription":"Returns a JSON object with: per-venue current funding rates, min/max/mean annualized funding, cross-venue funding arbitrage spread, next funding timestamp per venue, total open interest in USD with per-venue breakdown, real-time best bid/ask across venues, and (for the /tempo endpoint) Tempo chain wallet activity including 7-day transfer volume, inbound/outbound counts, distinct counterparties, balances, and an activity score heuristic.","failureModes":["Upstream exchange API outage causes missing data for one or more venues","Rate limit or payment failure returns 402 with x402 payment required","Stale data if a venue's feed lags — check generatedAt timestamp","Unsupported coin symbol returns empty or error response","Network timeout from Cloudflare Worker if multiple upstream calls are slow"],"whenToPreferThis":"Choose FundingFeed when you need a single API call that aggregates perpetual funding rates across 10+ major exchanges simultaneously — avoiding the need to query each exchange individually. Ideal for funding arbitrage strategies, cash-and-carry sizing, crowded positioning detection, and best-execution routing. Prefer this over exchange-native APIs when cross-venue comparison is the goal. The /tempo endpoint additionally returns Tempo chain wallet activity, useful for verifying on-chain payment flow alongside funding data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T02:42:41.299Z","isFirstParty":false,"canonicalSlug":"fundingfeed-cross-exchange-perpetual-funding-rate-open-interest-af86e743"}