77trust / 100

Crypto Swap Route

by ISHOB in Onchain & crypto

x402 APIPassing, checked 3 h ago

Best DEX swap route and quote on Ethereum, Base, Arbitrum, Optimism, Polygon or BNB Chain via the KyberSwap aggregator (400+ liquidity sources, split routes): output amount, slippage-protected minimum, USD value change, gas, hops. With `sender`, also an unsigned ready-to-sign transaction plus the ERC-20 allowance check. Quotes only; ISHOB never sends transactions.

GET
https://api.ishob.com/v1/crypto/swap-route
Price
$0.001
per call in USDC
Uptime
100%
last 30 days
Response time
695 ms
1.3 s slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://api.ishob.com/v1/crypto/swap-route

Each call costs $0.001 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://api.ishob.com/v1/crypto/swap-route?amount=1&chain=base&token_in=native&token_out=0x833589fcd6edb6e08f4c7c32d4f71b54bda02913

Parameters

ParameterTypeRequiredDescription
amountstringNoAmount of token_in in normal units, e.g. '1.5' (or use amount_raw)
amount_rawstringNoAmount of token_in in base units (wei)
chainstringYes One of: ethereum, base, arbitrum, optimism, polygon, bsc.
senderstringNoOptional wallet address: returns an unsigned transaction + allowance check
slippage_bpsintegerNoSlippage tolerance in basis points Default: 50.
token_instringYesToken address, or 'native' for ETH/POL/BNB
token_outstringYesToken address, or 'native'

Example response

The provider's example. We can't check it without paying.

{
  "amount_in": "1",
  "amount_out": "2488.92",
  "amount_out_min": "2476.47",
  "route": {
    "exchanges": [
      "uniswap-v3"
    ],
    "paths": 1
  },
  "router": "0x6131B5fae19EA4f9D964eAc0408E4408b66337b5",
  "usd": {
    "gas": 0.019,
    "value_change_pct": 0.03
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.ishob.com/v1/crypto/swap-route?amount=1&chain=base&token_in=native&token_out=0x833589fcd6edb6e08f4c7c32d4f71b54bda02913'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.ishob.com/v1/crypto/swap-route?amount=1&chain=base&token_in=native&token_out=0x833589fcd6edb6e08f4c7c32d4f71b54bda02913' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.ishob.com%2Fv1%2Fcrypto%2Fswap-route
const res = await pay("https://api.ishob.com/v1/crypto/swap-route?amount=1&chain=base&token_in=native&token_out=0x833589fcd6edb6e08f4c7c32d4f71b54bda02913");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.ishob.com/v1/crypto/swap-route?amount=1&chain=base&token_in=native&token_out=0x833589fcd6edb6e08f4c7c32d4f71b54bda02913")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

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3 h agoPassed402960 ms$0.001
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29 h agoPassed40241 ms$0.001
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2 days agoPassed402766 ms$0.001