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BasePrice Oracle x402
x402
BasePrice Oracle x402 is a paid API for AI agents from baseprice-x402.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-18).
Returns real-time DEX spot price and swap quote data for tokens on Base Mainnet (Chain ID 8453), paid per-call via x402.
Price / call$0.01
Success—
StatusUnknown
How this service works
Real-Time DEX Spot Price & Swap Quoter Oracle for Base Mainnet (Chain ID 8453), payable via x402.
Output
A JSON object containing the token's current spot price in USD, network identifier (Base Mainnet), liquidity depth in USD, 24-hour trading volume in USD, a timestamp of the quote, and token metadata — sourced from live DEX pools on Base (Chain ID 8453).
Example use cases
Live token price check for DeFi dashboard
“Can you pull the current spot price of WETH in USD from Base Mainnet DEX liquidity pools, along with today's trading volume and liquidity depth?”
Arbitrage opportunity detection
“Fetch the real-time on-chain price for USDC quoted in USD on Base Mainnet — I want to compare it against another exchange to spot any arbitrage gaps.”
Portfolio value monitoring agent
“Get me the latest DEX price of WETH on Base chain so I can update my portfolio tracker with the current on-chain valuation.”
Technical details
Endpoint
GEThttps://baseprice-x402.vercel.app/v1/quoteWhen to prefer
Choose this endpoint when you need real-time, on-chain DEX spot prices specifically for tokens on Base Mainnet (Chain ID 8453) and are operating in a pay-per-call x402 micropayment context. It is ideal for DeFi agents, arbitrage bots, portfolio trackers, and swap estimators that require fresh liquidity-pool-sourced prices rather than centralized exchange data or off-chain aggregators.
Side effects
- Payment not submitted or invalid x402 payment header returns 402 Payment Required
- Unsupported or unrecognized token symbol returns an error or empty token object
- Token has insufficient liquidity on Base DEX, resulting in unreliable or missing price data
- Network connectivity issues to Base Mainnet RPC may cause stale or failed price fetches
- Invalid quote currency specified may return unexpected results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| token | object | |
| network | string | |
| price_usd | number | |
| timestamp | string | |
| liquidity_usd | number | |
| volume_24h_usd | number |
Tags
x402
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