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Saylor Innovations Oracle Price Feed
x402
Saylor Innovations Oracle Price Feed is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
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.
Price / call$0.01
Success—
StatusUnknown
How this service works
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.
Output
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.
Example use cases
DeFi liquidation threshold check
“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.”
Multi-chain price discrepancy monitor
“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.”
Stablecoin peg verification
“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.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/oracle/price?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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