{"uid":"cap_1p4dYm1xpTJNH1AFAVlwP","slug":"myeliasignal-msvi-eth-usd-volatility-index-history-1fce2075","name":"MyeliaSignal MSVI ETH/USD Volatility Index History","description":"MSVI volatility index history for ETH — 63 days, per-row original signatures. — Ed25519 signed attestation","url":"https://api.myceliasignal.com/oracle/history/index/msvi/ethusd","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":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_sCKr1zY-xZop_NGK6scmu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns 63 days of MSVI volatility index history for ETH/USD with per-row Ed25519 signed attestations","exampleAgentPrompt":"Can you pull the last 63 days of MSVI volatility index history for ETH/USD from MyeliaSignal — I need the cryptographically signed per-row attestations so I can verify each data point independently?","exampleUseCases":null,"resultDescription":"An array of up to 63 daily MSVI (MyeliaSignal Volatility Index) values for ETH/USD, each row accompanied by an Ed25519 digital signature providing cryptographic attestation of the data's authenticity and origin from the MyeliaSignal oracle.","failureModes":["Payment not provided or invalid — 402 Payment Required","Network or oracle data unavailable — 503 Service Unavailable","Malformed request — 400 Bad Request","Rate limit exceeded — 429 Too Many Requests"],"whenToPreferThis":"Use this endpoint when you need a historical volatility index (MSVI) for ETH/USD with cryptographic attestation per data row, especially when downstream consumers or smart contracts require verifiable signed oracle data. Prefer over raw price feeds or unsigned volatility sources when data integrity guarantees are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T13:01:51.017Z","isFirstParty":false}