# YRUZ Reverse IP Lookup

> YRUZ Reverse IP Lookup is a paid API for AI agents from yruz.one, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-19).

Performs a reverse IP lookup to find hostnames and domain names associated with a given IPv4 or IPv6 address

## Facts

- Endpoint: POST https://yruz.one/api/toolkit/reverse-ip-lookup?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/yruz-reverse-ip-lookup-f0aea5f4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9ZBzi8teURjvgQZhSvs9K

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 yruz-reverse-ip-lookup-f0aea5f4 -d '<json body>'
```

Example prompt: Can you do a reverse IP lookup on 104.21.45.67 and tell me what hostnames or domains are associated with it?

## When to prefer this

Choose this endpoint when you need to resolve an IP address back to its associated hostnames or domains, especially for cybersecurity investigations, network audits, or infrastructure mapping. It accepts both IPv4 and IPv6 addresses and is available at a low per-call cost via x402 micropayment, making it suitable for on-demand lookups in automated pipelines.

## Known failure modes

- Private or reserved IP addresses (e.g. 192.168.x.x, 10.x.x.x) may return empty results
- Malformed IP address strings will likely cause an error or empty result
- IPs with no reverse DNS records configured will return empty result sets
- Rate limiting or payment failures may return 402 errors
- IPv6 addresses may have limited reverse record availability

## How this service works

YRUZ is a free social network: create a profile, join public groups, attend events, read free guides on community building and creator income.

## Output

Returns a JSON object containing the results of the reverse IP lookup for the queried address, including any hostnames or domain names mapped to that IP. The response wraps results under a 'result' key along with a 'tool' identifier.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ip": {
   "type": "string",
   "description": "public IPv4/IPv6 (required)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "tool": "reverse-ip-lookup",
  "result": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/yruz-reverse-ip-lookup-f0aea5f4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from yruz.one](https://www.zero.xyz/host/yruz.one/llms.txt)