# Email Address Validator

> Email Address Validator is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0324/call, status unknown (last checked 2026-09-14).

Validates an email address for RFC 5322 syntax, MX records, disposable domain detection, role-based address detection, free provider detection, and typo suggestions with deliverability scoring.

## Facts

- Endpoint: GET https://api.strale.io/x402/email-validate
- Price: $0.0324/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-strale-io-213f7203
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ETFylLVWlN2Rkda7_1D8e

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 api-strale-io-213f7203
```

Example prompt: Can you validate the email address john.doe@gmial.com and tell me if it's deliverable, whether it's disposable or role-based, and if there's a typo in the domain?

## When to prefer this

Use this endpoint when you need a comprehensive, multi-signal email validation that goes beyond simple regex checks — specifically when you need disposable domain detection, role-based address identification, typo correction suggestions, and MX record verification all in a single call. Prefer this over basic syntax checkers when cleaning user-submitted email lists, gating signups, or assessing email deliverability risk.

## Known failure modes

- Missing or malformed email query parameter returns an error
- Network or DNS timeout during MX record lookup may affect deliverability result
- Edge-case email formats that technically satisfy RFC 5322 may still fail domain lookup
- Unknown disposable domains not in the 5,361-entry list will not be flagged
- Payment not included or invalid returns 402 Payment Required

## How this service works

Validate an email address: RFC 5322 syntax, MX records, 5,361 disposable domain detection, role-based address detection (35 patterns), free provider detection, and typo suggestion for common providers (gmial.com ? gmail.com). Returns deliverability assess…

## Output

A structured deliverability assessment with per-check breakdown including: RFC 5322 syntax validity, MX record lookup result, disposable domain detection (against 5,361 known domains), role-based address detection (35 patterns), free provider flag, and a typo suggestion if the domain closely matches a common provider (e.g. gmial.com → gmail.com).

## Example request

```json
{
 "email": "zero-qa@agentmail.to"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "email"
 ],
 "properties": {
  "email": {
   "type": "string",
   "description": "Email address to validate"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "email": {
  "type": "string"
 },
 "valid": {
  "type": "boolean"
 },
 "domain": {
  "type": "string",
  "description": "Domain part of the email address"
 },
 "is_disposable": {
  "type": "boolean"
 },
 "has_mx_records": {
  "type": "boolean"
 },
 "is_role_address": {
  "type": "boolean"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-strale-io-213f7203/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)