Swap Quote

Instant AMM swap quote — exact output amount, price impact and swap fee for any token pair; DeFi exchange-rate and swap pricing API. Deterministic on-chain execution by the AmanChain node — live consensus state, real blocks, pools and balances. Pay per call via x402 (USDC on Base), no account, no API key. POST JSON {"serviceId":"aman-swap-quote","request":"<input>"}.

Open endpoint ↗

Price per call: $0.007
Chain: Base
Method: POST
Paid calls · 30 days: 6

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://amanchain-relay.gitajhd.workers.dev/api/x402/aman-swap-quote", { method: "POST" });
console.log(await res.json());

https://amanchain-relay.gitajhd.workers.dev/api/x402/aman-swap-quote