# 54ch10 Pre-Interact URL Check

> 54ch10 Pre-Interact URL Check is a paid API for AI agents from 54ch10.uk, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-15).

Fetches and analyzes a public URL, returning a safety brief, domain registration info, and page content before you interact with it

## Facts

- Endpoint: GET https://54ch10.uk/v1/open
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/54ch10-pre-interact-url-check-a5fab5d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MW-vUBsH0K9yc1knZl6RW

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 54ch10-pre-interact-url-check-a5fab5d3
```

Example prompt: Before I click this link someone sent me — https://defi-airdrop-claim.xyz — can you check if it looks safe, tell me how old the domain is, and give me a brief of what the page actually says?

## When to prefer this

Choose this endpoint when you need a quick pre-interaction safety check on a URL — especially before connecting a wallet, clicking a link in a DeFi or crypto context, or forwarding a link to a user. It combines phishing detection, domain age/registrar lookup, and page content preview in a single call. Prefer it over raw WHOIS lookups or standalone phishing checkers when you need all three signals together. Not suitable for bulk crawling or deep security audits.

## Known failure modes

- URL is unreachable or returns a non-200 status — page.status reflects the actual HTTP code
- Private, localhost, or non-public URLs are rejected as invalid input
- Phishing source APIs may be temporarily unavailable, reducing coverage
- Domain WHOIS data may be incomplete or unavailable for some TLDs
- Malformed or non-HTTP(S) URLs result in validation errors
- Rate limits or payment failures return 402 Payment Required

## How this service works

54ch10: pre-interact URL check. Paste a link, get brief + domain + page. Taste /v1/open/free. 80 calls for $1. Wire in 30s. Analytics-only tooling. Not financial advice.

## Output

A JSON object containing: a safety brief with a risk band (e.g. 'clear'), a numeric score, phishing flags, and sources checked (e.g. OpenPhish status); domain info including creation date, age in days, and registrar; and page content including HTTP status, content type, and rendered markdown of the page body. Also returns the resolved URL and a disclaimer that results are informational only.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "Public http(s) URL to open (alias: url=)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "q": "https://example.com",
  "ok": true,
  "url": "https://example.com",
  "page": {
   "status": 200,
   "markdown": "# Example Domain\n\n…",
   "contentType": "text/html"
  },
  "tier": "x402",
  "brief": {
   "band": "clear",
   "flags": [],
   "score": 12,
   "sources": [
    {
     "id": "openphish",
     "label": "OpenPhish",
     "status": "live"
    }
   ],
   "summary": "URL parsed (host: example.com)."
  },
  "domain": {
   "created": "1995-08-14T04:00:00Z",
   "age_days": 11300,
   "registrar": "RESERVED-Internet Assigned Numbers Authority"
  },
  "disclaimer": "Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/54ch10-pre-interact-url-check-a5fab5d3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 54ch10.uk](https://www.zero.xyz/host/54ch10.uk/llms.txt)