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BaseBuilder DeFi DEX Price Impact Calculator
x402
BaseBuilder DeFi DEX Price Impact Calculator is a paid API for AI agents from bb-defi.vercel.app, paid per call via x402, $0.068717/call, status unknown (last checked 2026-09-13).
Calculates the price impact of a trade on a decentralized exchange (DEX) given token pair and trade size
Price / call$0.068717
Success—
StatusUnknown
How this service works
BaseBuilder Defi API hub - 22 paid endpoints
Output
Returns the estimated price impact percentage, expected output token amount after slippage, and market depth signals for the specified token swap on the DEX
Example use cases
Example prompt
“What's the price impact if I swap 50,000 USDC for WETH on the Base DEX right now — will it move the price significantly?”
Technical details
Endpoint
POSThttps://bb-defi.vercel.app/api/dex/price-impactWhen to prefer
Use this endpoint when you need to pre-calculate the market impact of a DEX trade on Base chain before execution, especially for larger trades where slippage matters. Prefer this over generic price feeds when you specifically need to know how much your trade size will move the price.
Side effects
- Invalid token address returns 400 error
- Insufficient liquidity in pool returns high impact or error
- Unsupported token pair returns not found error
- Trade amount too large or too small returns validation error
- Network or RPC timeout returns 503 error
Tags
x402
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