# x402broker Email Validator

> x402broker Email Validator is a paid API for AI agents from x402broker.com, paid per call via x402 or MPP, $0.005/call, status unknown (last checked 2026-10-20).

Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX, SPF, and DMARC record verification

## Facts

- Endpoint: GET https://x402broker.com/v1/email-validator?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402broker-email-validator-d7cda4bb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JvCfdeaA9OA4b_DM4yzlz

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 x402broker-email-validator-d7cda4bb
```

Example prompt: Can you check whether john.doe@example.com is a real, deliverable email — specifically whether it's from a disposable provider, whether it's a role account, and whether the domain has valid MX, SPF, and DMARC records?

## When to prefer this

Choose this endpoint when you need a comprehensive single-call check combining syntax validation, disposable provider detection, role account flagging, and live DNS MX/SPF/DMARC record verification for an email address. It is ideal for B2B lead screening, SaaS signup fraud prevention, and pre-send email list hygiene where you need more than just syntax checking. Prefer this over simple regex validators when live DNS deliverability and spam-protection record verification matter.

## Known failure modes

- Invalid or missing email query parameter returns an error response
- DNS lookup timeouts if the target domain's nameservers are slow or unresponsive
- Unknown or newly created domains may lack MX/SPF/DMARC records and return empty results
- Disposable provider list may not include very new burner email services
- Rate limiting if too many requests are sent in rapid succession

## How this service works

Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (Live x402 v2, IETF MPP & MCP endpoint at https://x402broker.com/v1/email-validator)

## Output

Returns a structured report indicating email syntax validity, whether the provider is a known disposable or burner service, whether the address is a role account (e.g. info@, admin@, support@), and live DNS lookup results for the domain's MX, SPF, and DMARC records, giving a comprehensive deliverability assessment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "email"
 ],
 "properties": {
  "email": {
   "type": "string",
   "minLength": 1,
   "description": "Email address to validate for syntax, MX deliverability, and disposable risk"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402broker-email-validator-d7cda4bb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)