# Klymax402 Batch Email Verification

> Klymax402 Batch Email Verification is a paid API for AI agents from email-verification.api.klymax402.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Verifies up to 100 email addresses in a single batch call, returning validity status for each

## Facts

- Endpoint: GET https://email-verification.api.klymax402.com/api/verify/batch
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/klymax402-batch-email-verification-87426ed9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pHSGtVoLTTtafe-7dwezf

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 klymax402-batch-email-verification-87426ed9
```

Example prompt: Can you verify all of these email addresses for me at once — alice@example.com, bob@test.org, carol@fake.net, and 30 more from my list — and tell me which ones are valid?

## When to prefer this

Choose this endpoint when you need to verify multiple email addresses in a single API call (up to 100 at a time), making it far more efficient than calling the single-email endpoint repeatedly. Ideal for list hygiene workflows, batch imports, form submission processing, or any scenario where you have a collection of emails to validate at once.

## Known failure modes

- More than 100 emails submitted — batch limit exceeded error
- Malformed email strings in array causing parsing failures
- Empty array input returning no results
- Rate limiting or quota exhaustion if called too frequently
- Network timeout for very large batches near the 100-item limit

## How this service works

Verify up to 100 email addresses in batch

## Output

A result set containing a validity assessment for each submitted email address, indicating which are valid, invalid, or otherwise flagged (e.g. disposable, undeliverable, or risky), returned as an array of per-email verification outcomes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "emails": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "description": "Array of email addresses (max 100)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/klymax402-batch-email-verification-87426ed9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from email-verification.api.klymax402.com](https://www.zero.xyz/host/email-verification.api.klymax402.com/llms.txt)