# orbit Web Tools: Email Address Validator

> orbit Web Tools: Email Address Validator is a paid API for AI agents from orbit-web.orbit-builder.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).

Validates an email address for RFC syntax, MX/DNS records, disposable domain, role account, free provider, typo suggestions, SPF/DMARC, and returns a valid/risky/invalid verdict — without sending any mail.

## Facts

- Endpoint: GET https://orbit-web.orbit-builder.workers.dev/v1/email?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orbit-web-tools-email-address-validator-46255083
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lsvEFGB5vncOltOrsx2tY

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 orbit-web-tools-email-address-validator-46255083
```

Example prompt: Can you validate the email address info@github.com for me — check if it's syntactically correct, has real MX records, whether it's a disposable or role address, and give me an overall verdict on whether it's valid, risky, or invalid?

## When to prefer this

Choose this endpoint when you need a comprehensive, non-intrusive email validation that goes beyond simple regex — covering MX/DNS, disposable detection, role accounts, free providers, typo suggestions, and SPF/DMARC, all without sending a probe email. Ideal for pre-validating leads, signups, or contact lists at scale at $0.001 per call. Prefer alternatives if you need actual mailbox probing (SMTP RCPT TO) or real-time deliverability confirmation.

## Known failure modes

- Missing or malformed email query param returns an error or runs example input
- Domain has no MX and no A record fallback — may return invalid verdict
- Disposable domain list may not cover all providers (false negatives possible)
- SPF/DMARC checks depend on DNS availability at call time
- Network timeouts to DNS-over-HTTPS resolvers could cause intermittent failures

## How this service works

Web utilities for agents, computed live at call time: URL health/redirect/x402 check, web page to Markdown (robots.txt honoured), DNS lookup with SPF/DMARC, email address validation (MX, disposable, role, typo), HTTP security-header audit and AI-agent readiness audit (llms.txt, AI crawler rules, x402, MCP, OpenAPI). $0.001 per call. By orbit-builder.

## Output

A JSON object containing: the email and domain, syntax_ok boolean, mx records array, verdict string (valid/risky/invalid), reasons array explaining the verdict, disposable boolean, role boolean, free_provider boolean, suggestion for typo correction (or null), and SPF/DMARC presence flags.

## 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"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "mx": [
   "1 aspmx.l.google.com."
  ],
  "role": true,
  "email": "info@github.com",
  "domain": "github.com",
  "reasons": [
   "role account"
  ],
  "verdict": "risky",
  "syntax_ok": true,
  "disposable": false,
  "suggestion": null,
  "free_provider": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orbit-web-tools-email-address-validator-46255083/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from orbit-web.orbit-builder.workers.dev](https://www.zero.xyz/host/orbit-web.orbit-builder.workers.dev/llms.txt)