How do I integrate token swaps into a Rust Axum server?

Add deps, define structs, call fetch_swap async, handle statuses, expose POST endpoint. Full code above—copy-paste ready.

What EVM chains does swapapi.dev support?

46 total: Ethereum, Polygon, Arbitrum, Optimism, Base, and more. Check docs for chainId list.

Is swapapi.dev really free with no API key?

Yes—for starters. No keys needed, but watch rate limits for high-volume bots.

Does it handle slippage and MEV protection?

Gives min_amount_out and price_impact. Build your own frontrun guards on top.

🗄️ Databases & Backend

Rust Backends Swap Tokens Effortlessly: One API Call Conquers 46 Chains

Rust backends just got a DeFi superpower: token swaps across 46 EVM chains with a single GET request. Forget liquidity pool nightmares—swapapi.dev handles the routing magic.

DevTools Feed Apr 03, 2026 4 min read 12 views

Rust code snippet executing token swap via swapapi.dev API in Axum server

⚡ Key Takeaways

Integrate token swaps in Rust with one GET to swapapi.dev—no DEX routers needed. 𝕏
Axum + reqwest makes async swaps blazing fast across 46 EVM chains. 𝕏
This is DeFi's 'SendGrid moment'—abstracts complexity, predicts mass adoption. 𝕏

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#Axum #DeFi API #Rust backend #swapapi.dev #token swaps

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