# AgentUtility Email Verifier

> AgentUtility Email Verifier is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-10).

Verifies an email address and its domain using DNS-based risk checks (MX, SPF, DMARC, DKIM, disposable domain, role account) without probing the recipient mailbox.

## Facts

- Endpoint: POST https://x402.agentutility.ai/email-verify?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentutility-email-verifier-7c3d06c2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fipDolwwn-LwXBQB9Jil0

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 agentutility-email-verifier-7c3d06c2 -d '<json body>'
```

Example prompt: Can you verify whether buyer@acmecorp.com is a real, deliverable email address — check the domain's MX records, whether it's disposable, and if it's a role account like support or info?

## When to prefer this

Choose this endpoint when you need fast, privacy-safe email validation that goes beyond simple regex — specifically when you want DNS-level signals (MX, SPF, DMARC, DKIM) plus disposable-domain and role-account detection, without performing a live mailbox probe that could alert the recipient or get blocked by mail servers. Ideal for pre-send validation in email campaigns, onboarding flows, or lead qualification pipelines.

## Known failure modes

- Invalid or malformed email address returns an error or low score
- Domain has no MX records — can_receive_mail returns false
- Disposable domain detected — is_disposable flag set to true
- DNS lookup timeouts for obscure or newly registered domains may degrade result accuracy
- DKIM check may return inconclusive if no common selectors are found and none are provided

## How this service works

Verifies an email address and its domain with DNS-based risk checks: MX, disposable-domain, role-account, SPF, DMARC, and DKIM signals. Privacy-safe: does not probe the recipient mailbox. Use it as an email verifier, email verification API, or to validate email address deliverability.

## Output

Returns a JSON object with the email address and domain, a deliverability_score (0–100 integer), a risk label (e.g. 'low', 'medium', 'high'), a list of MX records, boolean flags for is_disposable, is_role_account, and can_receive_mail, and a verification_level string indicating the depth of checks performed (e.g. 'domain_dns_no_mailbox_probe').

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "email"
     ],
     "properties": {
      "email": {
       "type": "string",
       "description": "Email address to validate and score, e.g. 'buyer@example.com'."
      },
      "dkim_selectors": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "Optional DKIM selectors to check. Defaults to common selectors such as google, selector1, selector2, s1, and s2."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "risk": {
       "type": "string"
      },
      "email": {
       "type": "string"
      },
      "domain": {
       "type": "string"
      },
      "mx_records": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "is_disposable": {
       "type": "boolean"
      },
      "is_role_account": {
       "type": "boolean"
      },
      "can_receive_mail": {
       "type": "boolean"
      },
      "verification_level": {
       "type": "string"
      },
      "deliverability_score": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "risk": "low",
  "email": "support@example.com",
  "domain": "example.com",
  "mx_records": [
   "10 mail.example.com."
  ],
  "is_disposable": false,
  "is_role_account": true,
  "can_receive_mail": true,
  "verification_level": "domain_dns_no_mailbox_probe",
  "deliverability_score": 92
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentutility-email-verifier-7c3d06c2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.agentutility.ai](https://www.zero.xyz/host/x402.agentutility.ai/llms.txt)