{"uid":"cap_hV5ZKNOkG2eBlxNlJcaiW","slug":"hergert-synthora-perpetuals-market-data-52b54dec","name":"Hergert Synthora Perpetuals Market Data","description":"Garantizamos soberanía digital mediante ejecución autónoma. Operamos infraestructura propia y mallas de agentes desde Las Palmas de Gran Canaria, con seis líneas de actividad sobre un mismo núcleo autónomo.","url":"https://api.hergertsynthora.com/v1/perps","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"asset":{"type":"string","description":"Perp symbol e.g. BTC, ETH, SOL. Omit for top-10 by open interest"},"limit":{"type":"integer","description":"Rows when no asset given (1-50, default 10)"},"history":{"type":"boolean","description":"Include recent 8h funding history for the asset (default true)"}}},"responseSchema":{"type":"json","example":{"ok":true,"niche":"perps","result":{"mark":97500,"asset":"BTC","oracle":97490,"signed":"ed25519","premium":0.0001,"day_volume":1850000000,"funding_rate":0.0000125,"open_interest":2260000000,"funding_apr_pct":10.95}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_m-VMK8miH2O2_Hn5nlNR5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time perpetual futures market data including mark price, oracle price, funding rate, open interest, and day volume for crypto assets","exampleAgentPrompt":"What's the current BTC perpetual mark price, oracle price, and funding rate right now — and include the last 8 hours of funding history?","exampleUseCases":[{"title":"Live BTC funding rate check","prompt":"Pull the latest funding rate, funding APR, and open interest for BTC perpetuals, and show me the last 8 hours of funding history."},{"title":"Top perps by open interest","prompt":"Give me the top 10 crypto perpetual futures ranked by open interest, with their current funding rates and day volumes."},{"title":"ETH basis and premium monitoring","prompt":"What's the current premium between ETH's mark price and oracle price on the perps market, and what's the day volume?"}],"resultDescription":"A JSON object containing: asset symbol, mark price, oracle price, premium, funding rate, annualized funding APR percentage, 24h day volume, open interest, and optionally an 8-hour funding rate history array. Results are ed25519-signed for authenticity.","failureModes":["Unknown asset symbol returns error or empty result","Limit parameter out of range (>50) may return validation error","Network or infrastructure downtime returns non-200 response","Payment failure via x402 protocol prevents data return"],"whenToPreferThis":"Use this endpoint when you need real-time perpetual futures market data — particularly funding rates, mark/oracle prices, open interest, and volume — for specific crypto assets or a ranked list of top perps. Prefer this over generic market data APIs when you need ed25519-signed responses or are building within the x402 micropayment ecosystem.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:01:58.776Z","isFirstParty":false}