# Free Asset Radar x402 DNS Lookup API

> Free Asset Radar x402 DNS Lookup API is a paid API for AI agents from free-asset-radar-x402.besenok2018.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-19).

Performs a DNS lookup for a given domain name and returns resolved records (e.g. A, AAAA, MX) including TTL and data values.

## Facts

- Endpoint: GET https://free-asset-radar-x402.besenok2018.workers.dev/api/x402/dns-lookup?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/free-asset-radar-x402-dns-lookup-api-18e09d33
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QWw10oIpke2RbHfIaR81V

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability free-asset-radar-x402-dns-lookup-api-18e09d33
```

Example prompt: What IP address does example.com resolve to? Look up its A record via DNS.

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call DNS resolution without managing your own DNS infrastructure. It is well-suited for autonomous agents operating in x402 payment-enabled environments that need programmatic DNS lookups at the edge with minimal latency. Prefer it over self-hosted DNS clients when you want a stateless, serverless DNS query with no setup overhead.

## Known failure modes

- Domain does not exist (NXDOMAIN) — may return empty answers array or error
- Invalid or malformed domain name input — likely returns an error response
- Unsupported DNS record type requested — may return empty or error
- Network timeout at the edge — transient failure, retry recommended
- Missing required query parameters — returns 400-style error

## How this service works

Stable edge-hosted x402 utilities for autonomous agents.

## Output

Returns a JSON object containing the queried domain name, the DNS record type, and an array of answers each with a TTL (time-to-live in seconds) and the resolved data value (e.g. IPv4 address string for A records).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "name": "example.com",
  "type": "A",
  "answers": [
   {
    "ttl": 300,
    "data": "93.184.216.34"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/free-asset-radar-x402-dns-lookup-api-18e09d33/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from free-asset-radar-x402.besenok2018.workers.dev](https://www.zero.xyz/host/free-asset-radar-x402.besenok2018.workers.dev/llms.txt)