# x402 Email Verification API

> x402 Email Verification API is a paid API for AI agents from x402-apis-eta.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Verifies whether an email address is valid and deliverable, paid per-request via x402 micropayment protocol

## Facts

- Endpoint: GET https://x402-apis-eta.vercel.app/api/verify-email
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-email-verification-api-a491d5c0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wR36aE3-hv3LU4zbBqkUz

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 x402-email-verification-api-a491d5c0
```

Example prompt: Can you verify whether the email address john.doe@example.com is valid and actually deliverable?

## When to prefer this

Choose this endpoint when you need a quick, no-account email validation with pay-per-use pricing via x402 micropayments — ideal for AI agents that need to validate emails ad hoc without managing API keys or subscriptions.

## Known failure modes

- Missing required 'email' parameter returns an error
- Malformed email string may return invalid status or error
- Payment failure via x402 protocol returns 402 Payment Required
- Network timeout or service unavailability returns 5xx error
- Disposable or catch-all domains may return uncertain result

## How this service works

AI-agent-friendly APIs with instant micropayments via x402 protocol. No API keys, no accounts - just pay and access.

## Output

Returns a verification result indicating whether the supplied email address is valid, properly formatted, and/or deliverable, without requiring an API key or account setup.

## Example request

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

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-email-verification-api-a491d5c0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-apis-eta.vercel.app](https://www.zero.xyz/host/x402-apis-eta.vercel.app/llms.txt)