# SiteCheck Web Intel – Disposable Email Domain Check

> SiteCheck Web Intel – Disposable Email Domain Check 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).

Checks whether a given email address's domain (or a bare domain) appears on a community blocklist of ~9,900 known disposable and temporary email providers

## Facts

- Endpoint: GET https://api.webintel-api.workers.dev/api/security/email-disposable?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-disposable-email-domain-check-22a9f94a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DkwmaZYJiULM0pjK53fMY

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-disposable-email-domain-check-22a9f94a
```

Example prompt: Can you check if the email address user@mailinator.com is from a known disposable or throwaway email service?

## When to prefer this

Use this endpoint when you need a fast, low-cost check against a large community-maintained blocklist of disposable email domains — ideal for signup validation, lead scoring, or fraud prevention workflows. Prefer this over manual domain checks or full email verification services when you only need to know if a domain is commonly associated with throwaway accounts and do not need inbox reachability testing.

## Known failure modes

- Missing 'email' query parameter returns a 400 or error response
- Domain not found in list returns a negative/false result, which does not confirm the domain is legitimate
- False negatives are possible for newer or obscure disposable email domains not yet in the community list
- Rate limiting or payment failure (x402) may block requests if USDC balance is insufficient
- Invalid or malformed email/domain input may cause unexpected results

## How this service works

Checks whether an email address's domain (or a domain you give) is on the community disposable and temporary email blocklist (about 9,900 domains). Only the domain is checked, never the mailbox, and a domain missing from the list is not proven to be permanent.

## Output

Returns a boolean or status indicating whether the queried domain appears on the community disposable/temporary email blocklist (~9,900 domains). The mailbox portion of the email is ignored; only the domain is checked. A negative result (not on list) does not guarantee the domain is permanent.

## 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": [
      "email"
     ],
     "properties": {
      "email": {
       "type": "string",
       "description": "Email address or domain, e.g. user@mailinator.com or mailinator.com (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-disposable-email-domain-check-22a9f94a/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)