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Vaultfire Chainlink Price Feed Reader
x402
Vaultfire Chainlink Price Feed Reader is a paid API for AI agents from theloopbreaker.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Reads a Chainlink Data Feed price on Base, Avalanche, Arbitrum, or Polygon and returns the current answer, decimals, roundId, updatedAt timestamp, and freshness status.
Price / call$0.01
Success—
StatusUnknown
How this service works
Read any supported Chainlink Data Feed (ETH/USD, BTC/USD, LINK/USD, USDC/USD, AVAX/USD, MATIC/USD) on Base, Avalanche, Arbitrum, or Polygon. Returns answer, decimals, roundId, updatedAt, and freshness status. Data source: Chainlink decentralized oracle network — Vaultfire reads the on-chain AggregatorV3 proxy and exposes it via x402.
Output
Returns the current price answer (scaled by decimals), the number of decimals, the roundId, the updatedAt timestamp of the latest round, and a freshness status flag indicating whether the data is recent enough to be trusted.
Example use cases
DeFi liquidation risk monitoring
“Can you check if the LINK/USD price from Chainlink on Polygon is still fresh? I need to know if my collateral is at risk of liquidation right now.”
Cross-chain price arbitrage detection
“Pull the latest BTC/USD prices from Chainlink on both Arbitrum and Avalanche for me — I want to see if there's a trading opportunity between these chains.”
Stablecoin peg verification system
“What's the USDC/USD price from the Chainlink oracle on Base right now, and when was it last updated? I need to make sure the peg is holding.”
Technical details
Endpoint
GEThttps://theloopbreaker.com/api/x402/oracle/price-feedWhen to prefer
Use this endpoint when you need a real-time, decentralized, on-chain Chainlink oracle price for one of the six supported pairs (ETH, BTC, LINK, USDC, AVAX, MATIC vs USD) across Base, Avalanche, Arbitrum, or Polygon — especially when you need round metadata and freshness guarantees from the AggregatorV3 interface, not just a spot price from a centralized exchange API.
Side effects
- Unsupported feed pair returns an error (only ETH/USD, BTC/USD, LINK/USD, USDC/USD, AVAX/USD, MATIC/USD are supported)
- Unsupported network returns an error (only Base, Avalanche, Arbitrum, Polygon)
- Stale data flagged as not fresh if updatedAt is too old
- Payment failure if x402 USDC payment is not included or insufficient
- RPC timeout if the on-chain node is slow to respond
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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