# SiteCheck Web Intel IP Geolocation & ASN Lookup

> SiteCheck Web Intel IP Geolocation & ASN Lookup is a paid API for AI agents from api.webintel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).

Resolves an IPv4 or IPv6 address to its BGP prefix, origin AS number, AS holder name, announcement status, and coarse country/coordinates via RIPEstat

## Facts

- Endpoint: GET https://api.webintel-api.workers.dev/api/security/ip-geolocation-asn?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-web-intel-ip-geolocation-asn-lookup-ac5948bf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WnVc-qws4p9P2XYCIq5sj

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 sitecheck-web-intel-ip-geolocation-asn-lookup-ac5948bf
```

Example prompt: Can you look up the ASN, BGP prefix, and approximate country for the IP address 203.0.113.45 — I want to know who owns that network and whether the prefix is currently announced?

## When to prefer this

Choose this endpoint when you need BGP-level network attribution (ASN, prefix, holder) combined with coarse geolocation in a single call, especially for security investigation, network enrichment, or routing analysis. It is better than pure geolocation APIs when AS/BGP data matters. For precise street-level location, use a dedicated commercial geolocation service. For blacklist/reputation checks, pair with complementary endpoints like CI Army or Talos on the same platform.

## Known failure modes

- Invalid or malformed IP address returns an error response
- Private/reserved IP ranges (e.g. 192.168.x.x, 10.x.x.x) may return no BGP data
- IP not covered by any announced prefix returns no ASN data
- RIPEstat upstream unavailability causes timeout or 502-class errors
- IPv6 addresses may have less complete geolocation data than IPv4

## How this service works

IPv4 or IPv6 address → covering BGP prefix, origin AS number and holder name, whether the prefix is announced, and a coarse country and map point, all from RIPEstat. Location is an estimate (a block-level database), not a street address; the city is often empty.

## Output

Returns the covering BGP prefix for the IP, the origin AS number and AS holder/organization name, whether that prefix is currently announced in BGP, and a coarse geolocation including country code and approximate lat/lng coordinates (block-level estimate from RIPEstat, city often absent).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "ip"
     ],
     "properties": {
      "ip": {
       "type": "string",
       "description": "IPv4 or IPv6 address such as 8.8.8.8 (required)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-web-intel-ip-geolocation-asn-lookup-ac5948bf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.webintel-api.workers.dev](https://www.zero.xyz/host/api.webintel-api.workers.dev/llms.txt)