# GET /dns: $0.001 per call

Look up DNS records for any domain: A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, PTR, DS, DNSKEY, HTTPS, or ALL common types at once. Pass ?name=example.com&type=MX. An IP address with type=PTR does a reverse lookup. Uses DNS-over-HTTPS (Cloudflare 1.1.1.1) and reports DNSSEC validation and NXDOMAIN.

- **Price:** $0.001 in USDC, the same on Base, Solana, Polygon, Arbitrum. Failed calls are never charged.
- **Free trial:** yes, 20 free calls a day from Claude, Cursor or any MCP client ([set-up](/mcp/setup)).
- **Answers cached for:** 5 min
- **Data sources:** Cloudflare DNS (free)
- **Lane:** Utilities ([OpenAPI](/openapi/utilities.json))
- **Live health:** [status page](/status)

## Free sample

See an answer for the demo input first, free (no payment, 10 a minute): [https://aayatai.com/sample/dns](/sample/dns). It is a stored real answer when we have one, otherwise an example marked `"kind": "illustrative"`.

```bash
curl "https://aayatai.com/sample/dns"
```

## 1. See the price (free)

Call it without paying: you get `402 Payment Required` and a `PAYMENT-REQUIRED` header with the exact price and where to pay.

```bash
curl -i "https://aayatai.com/dns?name=example.com&type=MX"
```

## 2. Pay and call (TypeScript)

```bash
npm install @x402/fetch @x402/evm viem
```

```ts
import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";

// A wallet used only by your agent, holding a little USDC on Base.
const account = privateKeyToAccount(process.env.WALLET_PRIVATE_KEY as `0x${string}`);
const pay = wrapFetchWithPaymentFromConfig(fetch, {
  schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(account) }],
});

const res = await pay("https://aayatai.com/dns?name=example.com&type=MX");
console.log(await res.json());
```

## 3. Or as an MCP tool

```ts
// MCP server: https://aayatai.com/mcp (Streamable HTTP). With the x402 MCP client (see /start):
const result = await client.callTool("dns", {"name":"example.com","type":"MX"});
```

## Inputs

- `name` **(required)** (string): Domain name (or IP address for PTR), e.g. example.com.
- `type` (string; one of `A`, `AAAA`, `CNAME`, `MX`, `NS`, `TXT`, `SOA`, `CAA`, `SRV`, `PTR`, `DS`, `DNSKEY`, `HTTPS`, `SVCB`, `ALL`; default `A`): Record type, or ALL for the common ones.

Bad inputs are rejected with HTTP 400 before any payment is asked for.

## Example answer

```json
{
  "name": "example.com",
  "type": "MX",
  "status": "NOERROR",
  "dnssecValidated": true,
  "records": [
    {
      "name": "example.com",
      "type": "MX",
      "ttl": 86400,
      "data": "0 ."
    }
  ]
}
```

## Related

- [GET /email-check](/services/email-check) ($0.002): Check an email address before you use it: syntax, whether its domain has mail servers (MX, with null-MX and A-record fallback), disposable/throwaway providers, 
- [GET /rdap](/services/rdap) ($0.002): Domain registration lookup (RDAP, the modern WHOIS): registrar, abuse contact, created/updated/expiry dates, domain age, days until expiry, status codes, name s
- [GET /qr](/services/qr) ($0.001): Turn text or a link into a QR code.

New here? [Getting started in 60 seconds](/start). All services: [Aayat AI](/).