api.3route.io

https://api.3route.io/v1/:chainId/swap

Build an unsigned swap transaction for the best route. Builds an unsigned transaction for the selected route. Compare it with a fresh quote, validate every returned transaction field, obtain explicit signing approval, and broadcast it through the selected chain's RPC. For an ERC-20 source, approve the router in tx.to for at least srcAmount before executing the returned transaction, or pass a permit or usePermit2 instead.

last updated: Sep 24, 2026 · type: http · x402 v2

Payment Options

NetworkSchemeAmountPay To
Baseexact$0.001000 USDC0x5D89...07Eb
Basebatch-settlement$0.000010 USDC0x5D89...07Eb
eip155:42793exact0.00 tokens0x5D89...07Eb
solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpexact0.00 tokensAZ59bS...qfyD

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Resource Activity

via Bazaar · last 30 days
Calls
3
Unique Payers
1
Last Called
Sep 24, 2026