# Cerwal Archive URL Lookup

> Cerwal Archive URL Lookup is a paid API for AI agents from cerwal.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Retrieves a web archive (cached/historical version) of a given URL, pay-per-request via USDC

## Facts

- Endpoint: POST https://cerwal.vercel.app/api/archive
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cerwal-archive-url-lookup-6b114d3a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EkcWUHdiZDl1xLuJVYO5Z

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 cerwal-archive-url-lookup-6b114d3a -d '<json body>'
```

Example prompt: Can you find me an archived version of https://example.com/old-article so I can read what the page said before it was taken down?

## When to prefer this

Use this endpoint when you need to retrieve a cached or historical version of a web page, especially when the live page may be unavailable, deleted, or changed. It's a good fit for agents needing no-auth, pay-as-you-go archive lookups billed in USDC without subscriptions.

## Known failure modes

- URL has never been archived — success: false with no data
- Invalid or malformed URL input — request rejected
- URL is valid but archive retrieval times out
- Archive provider unavailable — service error
- Payment not completed via x402 — request blocked before execution

## How this service works

Web scraping and search for AI agents. No auth, no subscriptions. Pay per request in USDC via x402.

## Output

Returns a JSON object with a 'success' boolean and a 'data' object containing the archived content or metadata for the requested URL. The data field holds the archived page information retrieved from a web archive source.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "url"
 ],
 "properties": {
  "url": {
   "type": "string",
   "description": "URL to find archive for"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cerwal-archive-url-lookup-6b114d3a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cerwal.vercel.app](https://www.zero.xyz/host/cerwal.vercel.app/llms.txt)