Practical research
Choosing a swap API for an integration
Evaluate the operational contract as carefully as the quote.
Match the integration model
0x and KyberSwap expose quote and transaction workflows; 1inch also offers intent modes; LI.FI combines routes across bridges and swap providers. Choose based on the action your product must complete.
Write down access conditions
Document API keys, quotas, permitted chains, fee fields and transaction assembly rules. Treat returned spender and execution addresses as distinct roles. Keep secret API credentials on the server.
Test controlled failure
Exercise an unsupported pair, expired quote, provider timeout and rejected transaction. A route being returned does not prove it can execute. Do not turn missing data into a zero fee or a positive availability flag.
Profiles: 0x / Matcha, KyberSwap, 1inch, LI.FI
Sources checked
Source review: . Product documentation describes intended behavior; no trade execution or security audit was performed.
- API overview ↗
Quote integration and API access
- Aggregator architecture ↗
Split routing, PMMs and custom fees
- Fusion execution ↗
Resolver intents and MEV scope
- Architecture ↗
Unified bridge, DEX and solver orchestration
This publication compiles documented information. It does not provide investment advice, recommend trades, connect wallets or execute swaps.
