post
https://feed-api.cielo.finance/api/trading/base/v2/swap
Executes a token swap on Base chain. Amount is human-readable. Collateral determines which token is used as payment (buy) or received (sell). Slippage is in basis points (50 = 0.5%). Requires both X-API-KEY and Authorization Bearer token. Plans Included = Builder, Architect, Enterprise Cost per request = 10 credits.