# SixPath Email Validation

> SixPath Email Validation is a paid API for AI agents from sixpath.vercel.app, paid per call via x402, $0.121348/call, status unknown (last checked 2026-10-21).

Validates an email address to verify its format, deliverability, and authenticity

## Facts

- Endpoint: POST https://sixpath.vercel.app/api/email-validation?utm_source=zero.xyz
- Price: $0.121348/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sixpath-email-validation-f4d6fd1e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_81IWw4DNfhwt9IuPZ1AeF

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 sixpath-email-validation-f4d6fd1e -d '<json body>'
```

Example prompt: Can you check if the email address john.doe@example.com is valid and actually deliverable before I add it to my contact list?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call email validation without a subscription, especially in workflows on the Base blockchain using the x402 payment protocol. It is well-suited for single-address spot checks during user registration, lead qualification, or form submission validation where you want to avoid committing to a monthly SaaS plan.

## Known failure modes

- Invalid or missing email address in request body returns a 400 error
- Network or DNS lookup failure may result in inconclusive deliverability check
- Payment not provided or insufficient USDC balance triggers 402 payment required
- Rate limiting or server-side errors return 5xx responses
- Newly registered domains may not yet resolve, causing false negatives

## How this service works

All-in-one API hub: Social Media, Jobs, Finance, Crypto, and Tools. Pay-per-call with x402 protocol on Base chain.

## Output

Returns a structured validation result for the submitted email address, typically including whether the format is valid, whether the domain exists and has mail exchange records, whether the address is deliverable, and whether it belongs to a known disposable email provider.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sixpath-email-validation-f4d6fd1e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sixpath.vercel.app](https://www.zero.xyz/host/sixpath.vercel.app/llms.txt)