{"uid":"cap_Bo9Hwog5VEUb9yjMpJyOc","slug":"cloudmaxi0x-ema-indicator-73c3493c","name":"CloudMaxi0x EMA Indicator","description":"Deterministic, verifiable crypto market data and honest backtest audits. Use GET /v1/data/ohlcv for exact OHLCV over a half-open range with a SHA-256 Merkle manifest - only closed candles are returned, exchange decimal strings are preserved byte for byte, so the same query always yields the same root. Use GET /v1/data/proof to verify one candle against a root you already hold. Use POST /v1/validate/trades to find out whether a list of trade returns can be distinguished from luck, and POST /v1/validate/filter to test a trade filter against a permutation null. GET /, /v1/schema and /v1/data/sources are free.","url":"https://cloudmaxi0x.com/v1/indicators/ema","method":"GET","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["symbol","interval","start_ms","end_ms"],"properties":{"end_ms":{"type":"integer","description":"EXCLUSIVE, epoch ms, exact multiple of the interval"},"period":{"type":"integer","description":"optional; defaults to 20"},"symbol":{"type":"string","description":"e.g. BTCUSDT"},"interval":{"enum":["1m","3m","5m","15m","30m","1h","2h","4h","6h","8h","12h","1d","3d","1w"],"type":"string"},"start_ms":{"type":"integer","description":"inclusive, epoch ms, exact multiple of the interval"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_MphKSthlouV9dVT_eIbOo","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a converged, SMA-seeded exponential moving average time series for a given symbol, interval, and date range, with warm-up history pre-fetched and discarded so all returned values are stable.","exampleAgentPrompt":"Can you fetch me a converged 20-period EMA for BTCUSDT on 1-hour candles from January 1 2024 00:00 UTC to February 1 2024 00:00 UTC? I need stable values that don't shift when computed from a longer range.","exampleUseCases":[{"title":"EMA crossover strategy signal generation","prompt":"Pull me the 12-period and 26-period EMA for ETHUSDT on 4-hour candles from March 1 2024 00:00 UTC to April 1 2024 00:00 UTC — I need fully converged values so I can detect crossover signals without warm-up drift."},{"title":"Backtesting momentum strategy with EMA","prompt":"I'm backtesting a momentum strategy and need a stable 50-period EMA for SOLUSDT on the 1-day interval from January 1 2023 00:00 UTC to January 1 2024 00:00 UTC — make sure the first value is already converged so my backtest results don't vary depending on the lookback window."},{"title":"Live trading dashboard EMA overlay","prompt":"Get me the 9-period EMA for BTCUSDT on 15-minute candles for the last 24 hours — I want values I can overlay on my chart without them jumping around as new data comes in."}],"resultDescription":"A time series of EMA values aligned to closed candle timestamps within the requested half-open range. Each value is SMA-seeded and warm-up-converged, published at the precision level that exactly reproduces the computation. The first returned value is already stable — it does not change when the same dates are recomputed from a longer range.","failureModes":["start_ms or end_ms not an exact multiple of the interval — request rejected with validation error","Symbol not supported or misspelled — returns error or empty series","end_ms not strictly greater than start_ms — invalid range error","Insufficient historical data before start_ms to complete warm-up — may return error or partial series","Payment failure via x402 protocol — 402 response before any data is returned","Interval enum value not recognized — schema validation error"],"whenToPreferThis":"Choose this endpoint when you need EMA values that are guaranteed to be stable and convergent — i.e., when the same date range must return identical values regardless of how far back you extend the query. It is specifically useful for backtesting pipelines, charting overlays, and multi-indicator strategies where EMA warm-up artifacts would corrupt results. Prefer it over computing EMA yourself from raw OHLCV data when you need SMA-seeded initialization and reproducible precision.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:37:27.127Z","isFirstParty":false}