{"uid":"cap_dL4cE797t8QiFxjc3uv99","slug":"saylor-innovations-oracle-price-feed-6a1681c5","name":"Saylor Innovations Oracle Price Feed","description":"On-chain oracle price from Chainlink data feeds on Ethereum and Base for ETH, BTC, LINK, SOL, stablecoins and EUR, with update time and a staleness flag.","url":"https://saylorinnovations.com/api/oracle/price?utm_source=zero.xyz","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","required":["pair"],"properties":{"pair":{"type":"string","description":"the feed pair such as ETH/USD, BTC/USD, USDC/USD (ETH-USD and ETHUSD also work)"},"chain":{"type":"string","description":"optional: ethereum (default) or base"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["pair","chain","feed_address","price","price_text","decimals","updated_at","age_seconds","heartbeat_seconds","stale","round_id","answered_in_round","available_pairs","note","source"],"properties":{"note":{"type":"string","description":"Caveat or context for reading the result"},"pair":{"type":"string"},"chain":{"type":"string","description":"Blockchain the data is for"},"price":{"type":"number","description":"Price"},"stale":{"type":"boolean"},"source":{"type":"string","description":"Data source the values come from"},"decimals":{"type":"number","description":"Token decimal places"},"round_id":{"type":"string","description":"Round id identifier"},"price_text":{"type":"string","description":"Price text"},"updated_at":{"type":"string","description":"Updated at (UTC unless a time zone is given)"},"age_seconds":{"type":"number","description":"Age, in seconds"},"feed_address":{"type":"string","description":"Feed address"},"available_pairs":{"type":"array","description":"Available pairs"},"answered_in_round":{"type":"string","description":"Answered in round"},"heartbeat_seconds":{"type":"number","description":"Heartbeat, in seconds"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LV976Gj-FBO5QYarjWrFs","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current on-chain Chainlink oracle price for a given asset pair (ETH/USD, BTC/USD, LINK, SOL, stablecoins, EUR) on Ethereum or Base, including update time and a staleness flag.","exampleAgentPrompt":"What's the current on-chain Chainlink price for ETH/USD on Ethereum — and is the feed fresh or stale?","exampleUseCases":[{"title":"DeFi liquidation threshold check","prompt":"Before executing this trade, pull the current Chainlink BTC/USD oracle price on Ethereum and tell me if the feed is stale — I need to know if the on-chain price is safe to act on."},{"title":"Multi-chain price discrepancy monitor","prompt":"Get me the ETH/USD Chainlink oracle price on both Ethereum and Base so I can compare them — include the age in seconds for each feed so I can flag any divergence."},{"title":"Stablecoin peg verification","prompt":"Check the on-chain Chainlink price for USDC/USD on Ethereum and tell me whether it's pegged near $1 and how old the last update is."}],"resultDescription":"A JSON object containing the normalized pair name, blockchain, Chainlink feed contract address, price as a number and formatted string, decimal places, last update timestamp (UTC), age in seconds, heartbeat interval in seconds, a boolean staleness flag, round ID, answered-in-round, a list of all available pairs, a contextual note, and the data source attribution.","failureModes":["Unsupported pair requested — returns error indicating the pair is not available, with a list of supported pairs","Invalid chain parameter — returns error if a chain other than 'ethereum' or 'base' is specified","Chainlink feed temporarily unreachable — may return stale data with stale:true or a fetch error","Payment not received (x402) — returns 402 Payment Required before data is delivered","Rate limiting or node timeout — returns a 5xx error if the on-chain RPC is congested"],"whenToPreferThis":"Use this endpoint when you need tamper-resistant, on-chain oracle prices sourced directly from Chainlink data feeds rather than a centralized exchange API. Ideal for DeFi agents that need to verify whether a price feed is fresh (staleness flag + age_seconds), need the feed contract address for smart contract interactions, or need prices on both Ethereum mainnet and Base. Prefer this over CEX price endpoints when on-chain provenance and heartbeat metadata matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T06:54:00.529Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-oracle-price-feed-6a1681c5"}