Free DEX aggregator API for cross-chain token swaps on 46 EVM chains. Single GET endpoint, no API keys, returns broadcast-ready tx calldata.

How do I add cross-chain swaps to my Go microservice?

Model response structs, build a retrying HTTP client with 15s timeout, call /v1/swap/{chainId} with params. Parse, broadcast tx via RPC.

Does swapapi.dev require API keys?

Nope—zero authentication. Production-ready out the gate.

🗄️ Databases & Backend

One GET Request Unlocks 46 Chains: Cross-Chain Swaps in Go Microservices

Devs expected cross-chain swaps to mean custom DEX routers, multi-chain headaches, and endless auth drama. Nope—swapapi.dev flips the script with one GET call, no keys, powering $56B monthly volume.

DevTools Feed Apr 03, 2026 4 min read

Go code snippet building cross-chain swap client with swapapi.dev

⚡ Key Takeaways

Integrate cross-chain swaps into Go with one GET—no keys, 46 chains covered. 𝕏
Structs + net/http make it production bulletproof: retries, timeouts, typed JSON. 𝕏
DeFi backend staple now; echoes Stripe's payment revolution for crypto. 𝕏

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#DeFi API #Go microservice #cross-chain swaps #swapapi.dev

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