{"uid":"cap_77sfbi8FtEL0oL45IeGLo","slug":"claw402-polygon-ema-exponential-moving-average-endpoint-3e9c8d11","name":"claw402 Polygon EMA (Exponential Moving Average) Endpoint","description":"Backed by vergex.trade. Pay for any API with USDC. No API keys. No registration. Just a wallet.","url":"https://claw402.ai/api/v1/polygon/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"],"type":"string"},"queryParams":{"type":"object","properties":{"limit":{"type":"string"},"order":{"type":"string"},"window":{"type":"string"},"adjusted":{"type":"string"},"timespan":{"type":"string"},"timestamp":{"type":"string"},"series_type":{"type":"string"},"stockTicker":{"type":"string"},"expand_underlying":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"code":0,"data":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UoGB6vIyyZzKPFkz4Jw4k","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns Exponential Moving Average (EMA) technical indicator data for a given stock ticker, paid per-call via USDC on Polygon network with no API key required.","exampleAgentPrompt":"What's the exponential moving average for AAPL using a daily timespan, a window of 20, and close prices as the series type — give me the last 10 results in descending order?","exampleUseCases":null,"resultDescription":"A JSON object with a status code (0 for success) and a data array containing time-series EMA values for the requested ticker, timespan, window, and series type. Each data point includes the EMA value and its corresponding timestamp.","failureModes":["Missing required stockTicker parameter returns empty or error response","Invalid ticker symbol returns empty data array","Unsupported timespan or series_type enum value causes malformed request","Insufficient USDC balance or payment failure blocks the request at the x402 payment layer","Rate limiting or network issues at the underlying Polygon.io data source may return empty data","Out-of-range or future timestamps may return no data"],"whenToPreferThis":"Use this endpoint when you need EMA technical indicator data for US equities without registering for a traditional API key, and you prefer pay-per-call USDC micropayments via the x402 protocol. Ideal for lightweight algorithmic trading agents, backtesting scripts, or financial dashboards that need on-demand EMA calculations without subscription overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:57:37.262Z","isFirstParty":false}