3Route · V6 1 Swap

by 3Route

GETBaseSolanaeip155:42793

$0.001

per call · USD Coin on Base

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. The compatibility parameters permit and usePermit2 are ignored. For an ERC-20 source, approve the router in tx.to for at least srcAmount before executing the returned transaction.

Endpoint

GET https://3route.agents.bakingbad.dev/api/v6.1/:chainId/swap

7

Calls / 30d

1

Unique payers / 30d

Aug 21

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://3route.agents.bakingbad.dev/api/v6.1/:chainId/swap", {
  method: "GET",
});
const data = await res.json();
cURL
curl -X GET \
  "https://3route.agents.bakingbad.dev/api/v6.1/:chainId/swap?amount=1000000000000000000&dst=0x2222222222222222222222222222222222222222&fee=0&from=0x1111111111111111111111111111111111111111&gasPrice=1000000000&includeBlockNumber=false&includeProtocols=false&includeTokensInfo=false&isExactOutput=false&receiver=0x1111111111111111111111111111111111111111&referrer=0x1111111111111111111111111111111111111111&slippage=1&src=0x0000000000000000000000000000000000000000" \
  -H "X-PAYMENT: <signed x402 payment>"

Example response

{
  "dstAmount": "950000",
  "dstAmountMin": "940500",
  "gas": 210000,
  "srcAmount": "1000000000000000000",
  "tx": {
    "data": "0x1234",
    "from": "0x1111111111111111111111111111111111111111",
    "gas": "210000",
    "gasPrice": "1000000000",
    "to": "0x2222222222222222222222222222222222222222",
    "value": "1000000000000000000"
  }
}

Payment details

Pay to0x5d89060682fce50ecaa7600af6a5645bd2b107eb
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana, eip155:42793
Schemesexact, batch-settlement

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