# Mail Security Tools Email Check

> Mail Security Tools Email Check is a paid API for AI agents from api.mailsecuritytools.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Checks a single email address for disposable/role-account status and returns a safety verdict

## Facts

- Endpoint: GET https://api.mailsecuritytools.com/v1/email-check?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mail-security-tools-email-check-49d349ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Maxd4P8gWc0ykOsjeF7dN

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 mail-security-tools-email-check-49d349ce
```

Example prompt: Can you check whether jane@example.com is a disposable or role-based email address before I add it to my mailing list?

## When to prefer this

Choose this endpoint when you need a lightweight, low-cost ($0.01/call) check on individual email addresses to detect disposable or role-based addresses before user registration, list addition, or outreach. It is well-suited for real-time validation at the point of data entry rather than bulk batch processing.

## Known failure modes

- Missing or malformed email parameter returns an error
- Email string exceeding 320 characters rejected
- Network timeout if upstream lookup service is slow
- Invalid email format may return an error or unexpected verdict
- Rate limiting if called in rapid succession

## How this service works

Free directory of email-security and MSP tools for small businesses. Free-tier notes are dated from each vendor page.

## Output

Returns a JSON object with the checked email address, a verdict string (e.g. 'ok'), a boolean indicating whether the address is disposable, and a boolean indicating whether it is a role account (e.g. admin@, info@, support@).

## 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",
       "maxLength": 320,
       "description": "Email address"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "email": "jane@example.com",
  "verdict": "ok",
  "disposable": false,
  "role_account": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mail-security-tools-email-check-49d349ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.mailsecuritytools.com](https://www.zero.xyz/host/api.mailsecuritytools.com/llms.txt)