{"id":"c27ad7cc-e503-4f85-bfb6-7ef71287d2ec","shortId":"LmtXxs","kind":"x402","title":"Derivatives dashboard: funding rates, open interest, long/short ratios, whale positions, and liquidations via x402 micropayment.","tagline":"Derivatives dashboard: funding rates, open interest, long/short ratios, whale positions, and liquidations via x402 micropayment.","description":"The `/funding-rates` endpoint is part of Otto AI's x402 Agent Swarm, a suite of 30+ AI-powered crypto and DeFi endpoints accessible via x402 V2 micropayments. This specific endpoint provides a derivatives intelligence dashboard covering funding rates, open interest, long/short ratios, whale positions, and liquidation data. It accepts an optional `symbol` query parameter — omit it for a broad market overview, or pass a token symbol (e.g., BTC, ETH) for a detailed single-asset view. The endpoint costs $0.10 per call, paid in USDC on Base, Polygon, or Solana.\n\nPayment follows the x402 V2 protocol: an initial GET returns a 402 with a `PAYMENT-REQUIRED` header containing base64-encoded payment options (EIP-3009 USDC, Permit2 ERC-20, or Solana USDC). The caller signs the payment and retries with a `PAYMENT-SIGNATURE` header. On success, the response includes a signed EIP-712 receipt in the `PAYMENT-RESPONSE` header as cryptographic proof of delivery. As a read-only data endpoint, it also supports Sign-In-With-X (SIWX): after one paid call, subsequent requests within one hour can use a wallet signature instead of paying again.\n\nThe response follows a standard envelope: `{\"status\": \"success\", \"data\": {...}}` where the `data` object contains the derivatives metrics. The endpoint is live and returns 402 when probed without payment. Otto AI also exposes these services via MPP at mpp.ottoai.services and supports on-chain reputation feedback via ERC-8004.","tags":[],"capabilities":["derivatives-data","funding-rates","open-interest","long-short-ratios","whale-positions","liquidation-data","x402-micropayment","usdc-payment","multi-chain-payment","siwx-repeat-access","eip-712-receipts","permit2-ready"],"categories":["defi","market-data","crypto"],"synonyms":["funding rate API","derivatives dashboard","open interest API","long short ratio","whale positions","liquidation tracker","perp funding rates","crypto derivatives data","futures funding"],"warnings":["Response data schema is untyped — the `data` field is described only as a generic object with no documented properties","No concrete example response available; actual field names and structure are unknown","SIWX repeat-access behavior and exact session duration (stated as 1 hour) are not independently verified"],"endpointUrl":"https://x402.ottoai.services/funding-rates","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"100000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2","assetTransferMethod":"permit2"},"payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"100000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","extra":{},"payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"100000","scheme":"exact","network":"eip155:137","maxTimeoutSeconds":300},{"asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","extra":{"assetTransferMethod":"permit2"},"payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"100000","scheme":"exact","network":"eip155:137","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"},"payTo":"6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5","amount":"100000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}]},"qualityScore":"0.720","qualityRationale":"Full OpenAPI 3.1 schema is available with clear endpoint descriptions, parameters, and pricing. The endpoint is live (402 challenge confirmed). However, the response data schema is generic (just `type: object`) with no detailed field definitions, and no concrete example response is available, so the exact shape of the derivatives data must be inferred from the 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'-3009':147 '-712':176 '-8004':270 '/funding-rates':32 '0.10':111 '30':46 '402':133,246 'accept':80 'access':54 'agent':41 'ai':38,48,252 'ai-pow':47 'also':197,253 'asset':106 'base':118 'base64':142 'base64-encoded':141 'broad':90 'btc':99 'call':113,208 'caller':156 'chain':265 'contain':140,236 'cost':110 'cover':67 'crypto':50 'crypto derivatives data' 'cryptograph':185 'dashboard':2,17,66 'data':78,194,231,234 'defi':52 'deliveri':188 'deriv':1,16,64,238 'derivatives dashboard' 'derivatives-data' 'detail':103 'e.g':98 'eip':146,175 'eip-712-receipts' 'encod':143 'endpoint':33,53,61,109,195,241 'envelop':228 'erc':150,269 'eth':100 'expos':254 'feedback':267 'follow':123,225 'fund':3,18,68 'funding rate API' 'funding-rates' 'futures funding' 'get':130 'header':139,167,183 'hour':213 'includ':172 'initi':129 'instead':219 'intellig':65 'interest':6,21,71 'liquid':12,27,77 'liquidation tracker' 'liquidation-data' 'live':243 'long short ratio' 'long-short-ratios' 'long/short':7,22,72 'market':91 'metric':239 'micropay':15,30,58 'mpp':258 'mpp.ottoai.services':260 'multi-chain-payment' 'object':235 'omit':86 'on-chain':263 'one':206,212 'open':5,20,70 'open interest API' 'open-interest' 'option':82,145 'otto':37,251 'overview':92 'paid':114,207 'paramet':85 'part':35 'pass':94 'pay':221 'payment':122,137,144,159,165,181,250 'payment-requir':136 'payment-respons':180 'payment-signatur':164 'per':112 'permit2':149 'permit2-ready' 'perp funding rates' 'polygon':119 'posit':10,25,75 'power':49 'probe':248 'proof':186 'protocol':127 'provid':62 'queri':84 'rate':4,19,69 'ratio':8,23,73 'read':192 'read-on':191 'receipt':177 'reput':266 'request':210 'requir':138 'respons':171,182,224 'retri':161 'return':131,245 'servic':256 'sign':157,174,200 'sign-in-with-x':199 'signatur':166,218 'singl':105 'single-asset':104 'siwx':204 'siwx-repeat-access' 'solana':121,153 'specif':60 'standard':227 'status':229 'subsequ':209 'success':169,230 'suit':44 'support':198,262 'swarm':42 'symbol':83,97 'token':96 'usdc':116,148,154 'usdc-payment' 'use':215 'v2':57,126 'via':13,28,55,257,268 'view':107 'wallet':217 'whale':9,24,74 'whale positions' 'whale-positions' 'within':211 'without':249 'x':203 'x402':14,29,40,56,125 'x402-micropayment'","prices":[{"id":"0f559f14-a971-4852-aff0-b8137499f8d7","listingId":"c27ad7cc-e503-4f85-bfb6-7ef71287d2ec","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"100000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2","assetTransferMethod":"permit2"},"payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"100000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","extra":{},"payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"100000","scheme":"exact","network":"eip155:137","maxTimeoutSeconds":300},{"asset":"0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359","extra":{"assetTransferMethod":"permit2"},"payTo":"0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808","amount":"100000","scheme":"exact","network":"eip155:137","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"},"payTo":"6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5","amount":"100000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:34.176Z"}],"sources":[{"listingId":"c27ad7cc-e503-4f85-bfb6-7ef71287d2ec","source":"x402_bazaar","sourceId":"https://x402.ottoai.services/funding-rates","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:34.176Z","lastSeenAt":"2026-04-22T04:02:49.501Z"}],"details":{"listingId":"c27ad7cc-e503-4f85-bfb6-7ef71287d2ec","quickStartSnippet":"# 1. GET the endpoint to receive the 402 payment challenge\ncurl -i https://x402.ottoai.services/funding-rates\n\n# 2. With optional symbol filter:\ncurl -i 'https://x402.ottoai.services/funding-rates?symbol=BTC'\n\n# Returns 402 with PAYMENT-REQUIRED header.\n# Decode header, sign USDC payment, retry with PAYMENT-SIGNATURE header.","exampleRequest":null,"exampleResponse":{"data":{"description":"Derivatives intelligence: funding rates, open interest, long/short ratios, whale positions, and liquidations."},"status":"success"},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The /funding-rates endpoint provides derivatives intelligence: funding rates, open interest, long/short ratios, whale positions, and liquidations","source_url":"https://x402.ottoai.services"},{"claim":"The endpoint costs $0.10 per call","source_url":"https://x402.ottoai.services"},{"claim":"Payment is accepted in USDC on Base, Polygon, and Solana","source_url":"https://x402.ottoai.services"},{"claim":"Read-only endpoints support SIWX for 1-hour free repeat access after initial payment","source_url":"https://x402.ottoai.services"},{"claim":"Every call returns a signed EIP-712 receipt as verifiable proof of service delivery","source_url":"https://x402.ottoai.services"},{"claim":"The optional symbol query parameter provides a detailed view for a specific token; omitting it returns a market overview","source_url":"https://x402.ottoai.services"},{"claim":"Otto AI also offers MPP-based access at mpp.ottoai.services","source_url":"https://x402.ottoai.services"},{"claim":"On-chain reputation via ERC-8004 is supported","source_url":"https://x402.ottoai.services"}],"useCases":["Monitoring perpetual futures funding rates across exchanges to identify arbitrage opportunities","Tracking open interest and long/short ratios to gauge market sentiment before entering trades","Detecting whale position changes and large liquidation events for risk management","Building automated trading strategies that react to derivatives market conditions","Generating daily derivatives market summaries for research or newsletter content"],"bestFor":["Crypto trading bots needing real-time derivatives intelligence","DeFi agents that incorporate funding rate signals into strategy execution","Market research tools aggregating derivatives metrics across venues"],"notFor":["Traditional equities or forex derivatives data","Historical backtesting with granular time-series data (endpoint appears to return current snapshots)","Users who need free or API-key-based access without crypto wallet payments"],"kindDetails":{},"updatedAt":"2026-04-22T01:07:26.723Z"}}