# ChainVerdict Typosquatting Detection API

> ChainVerdict Typosquatting Detection API is a paid API for AI agents from chainverdict.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-12).

Analyzes a domain name to detect brand impersonation and typosquatting attempts

## Facts

- Endpoint: GET https://chainverdict.xyz/v1/security/typosquat/%7Bdomain%7D
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainverdict-typosquatting-detection-api-217f4051
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ly2vnBlmLyp2HrBrtvTbQ

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 chainverdict-typosquatting-detection-api-217f4051
```

Example prompt: Can you check if 'paypall-secure.com' is a typosquatting attempt impersonating a real brand?

## When to prefer this

Choose this endpoint when you need automated, per-domain typosquatting and brand impersonation detection at low cost ($0.005 per call). Ideal for pipelines that vet user-submitted URLs, monitor lookalike domains, or screen phishing links at scale. Prefer it over manual analysis or generic WHOIS tools when you specifically need a brand-impersonation verdict rather than registration details.

## Known failure modes

- HTTP 402 returned if payment is not provided upfront (x402 protocol requirement)
- Invalid or malformed domain strings may return a 400 error
- Unknown or very obscure domains may yield low-confidence verdicts
- Network timeouts if the analysis is slow for complex domains

## How this service works

x402 v2 pay-per-call. Unpaid requests receive HTTP 402 with payment requirements.

## Output

Returns a security verdict indicating whether the queried domain is a typosquatting or brand impersonation attempt, likely including a risk score, the brand being impersonated (if any), and supporting analysis details.

## 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"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain to analyse for brand impersonation"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainverdict-typosquatting-detection-api-217f4051/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chainverdict.xyz](https://www.zero.xyz/host/chainverdict.xyz/llms.txt)