# ASN Lookup

> ASN Lookup is a paid API for AI agents from coockies-ai.vercel.app, paid per call via x402, $0.191243/call, status unknown (last checked 2026-10-18).

Looks up Autonomous System Number (ASN) information for a given IP address or ASN identifier, returning network ownership and routing details.

## Facts

- Endpoint: POST https://coockies-ai.vercel.app/api/asn-lookup?utm_source=zero.xyz
- Price: $0.191243/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/asn-lookup-c443d069
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_me6ts3gSSOptfw5-S-sMp

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 asn-lookup-c443d069 -d '<json body>'
```

Example prompt: Look up the ASN information for the IP address 8.8.8.8 — I want to know which organization owns it and what autonomous system number it belongs to.

## When to prefer this

Use this endpoint when you need to quickly identify the network owner, ISP, or autonomous system behind an IP address as part of a pay-per-call workflow using x402 on Base chain. It is suitable for ad-hoc enrichment of individual IPs in security, fraud detection, or network analysis pipelines without managing a subscription.

## Known failure modes

- Invalid or malformed IP address returns an error
- Private or reserved IP ranges may not return meaningful ASN data
- Unrecognized ASN identifiers return empty or null results
- Service unavailability or upstream data provider timeout
- Payment failure via x402 preventing request processing

## How this service works

194 production-ready API endpoints. AI, Search, Social, Finance, Crypto. Pay-per-call with x402 on Base chain.

## Output

Returns an object containing ASN-related details for the queried IP or ASN identifier, including the autonomous system number, owning organization name, network prefix/CIDR range, country of registration, and ISP or carrier name.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/asn-lookup-c443d069/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coockies-ai.vercel.app](https://www.zero.xyz/host/coockies-ai.vercel.app/llms.txt)