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BaseBuilder DeFi Bridge Swap Rate
x402
BaseBuilder DeFi Bridge Swap Rate is a paid API for AI agents from bb-defi.vercel.app, paid per call via x402, $0.145638/call, status unknown (last checked 2026-09-14).
Returns the current swap rate for bridging tokens across chains via the BaseBuilder DeFi bridge
Price / call$0.145638
Success—
StatusUnknown
How this service works
BaseBuilder Defi API hub - 22 paid endpoints
Output
Returns the current exchange/swap rate for bridging the specified token pair across chains, including the expected output amount and any associated bridge fees.
Example use cases
Example prompt
“What's the current bridge swap rate on BaseBuilder DeFi to convert 1 ETH from Ethereum mainnet to USDC on Base chain?”
Technical details
Endpoint
POSThttps://bb-defi.vercel.app/api/bridge/swap-rateWhen to prefer
Use this endpoint when you need a real-time bridge swap rate quote between two tokens on different chains, specifically when operating within the BaseBuilder DeFi ecosystem or targeting Base chain. Prefer this over generic DEX aggregators when you specifically want bridge rates (cross-chain) rather than same-chain swaps.
Side effects
- Unsupported token pair returns an error or null rate
- Unsupported source/destination chain combination returns error
- Invalid or missing required parameters returns 400 bad request
- Payment not received or insufficient funds returns 402
- Service unavailable or provider downtime returns 503
- Extremely low liquidity may return an unusable rate
Tags
x402
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