{"uid":"cap_zflyMZIP9W0BRCtRtHg3o","slug":"speraxos-chainlink-price-feed-607f0adf","name":"SperaxOS Chainlink Price Feed","description":"AI-powered DeFi intelligence APIs payable via the x402 HTTP payment protocol. No API key required — pay per request with USDC on Base. Identity-only (SIWX) endpoints are free for wallets with an agentcash identity.","url":"https://chat.sperax.io/api/x402/tools/chainlink/getPrice?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"pair":{"type":"string","description":"Pair to read, e.g. \"ETH/USD\", \"BTC-USD\", or a bare \"ETH\" (USD is assumed)."},"chain":{"type":"string","description":"Chain to read from: ethereum, arbitrum, base, bsc, polygon or optimism. Defaults to ethereum."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_4D0Gwj9Thr2yduUUVk8TV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0xD74f5255D557944cf7Dd0E45FF521520002D5748","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches the current on-chain Chainlink oracle price for a given asset pair on a specified EVM chain","exampleAgentPrompt":"What's the current Chainlink oracle price for ETH/USD on Arbitrum?","exampleUseCases":[{"title":"Real-time ETH price for DeFi bot","prompt":"What's the latest Chainlink price for ETH/USD on Base right now? I need the on-chain oracle value for my trading strategy."},{"title":"Multi-chain BTC price comparison","prompt":"Can you pull the Chainlink BTC/USD price from both Ethereum and Polygon so I can compare the oracle feeds across chains?"},{"title":"Altcoin price check for portfolio rebalancing","prompt":"What is the current Chainlink price for LINK on Arbitrum? I want to decide if I should rebalance my DeFi position."}],"resultDescription":"Returns the current Chainlink oracle price for the requested asset pair on the specified EVM chain, sourced directly from the on-chain price feed.","failureModes":["Unsupported pair — Chainlink feed does not exist for the requested pair on the given chain","Unsupported chain — chain name not in the allowed set (ethereum, arbitrum, base, bsc, polygon, optimism)","Payment failure — x402 USDC payment not processed, request rejected","RPC/oracle unavailability — on-chain feed temporarily unreachable","Malformed pair string — pair not parseable (e.g. missing slash, invalid ticker)"],"whenToPreferThis":"Use this endpoint when you need a trustless, on-chain Chainlink oracle price for a major crypto asset pair without managing API keys or subscriptions. Ideal for DeFi agents, trading bots, or any application requiring a decentralized price source that is not dependent on a centralized exchange API. Prefer this over CEX REST APIs when tamper-resistance and on-chain verifiability matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T00:48:04.800Z","isFirstParty":false,"canonicalSlug":"speraxos-chainlink-price-feed-607f0adf"}