Kickbox alternative: Mailvett
Validate up to 10 email addresses per call: syntax, MX and mail provider, disposable, role and free-provider flags, typo fixes (gmial.com to gmail.com), domain age, SPF and DMARC, with a verdict and a 0-100 score. Keys work on the REST API and the MCP server.
Price comparison
| Plan | Price | Included |
|---|---|---|
| Mailvett Free | $0, no key, no card | 50 calls/day |
| Mailvett Cleaner | $19/month | 5,000 calls/month |
| Mailvett Growth | $49/month | 20,000 calls/month |
| Mailvett Agency | $99/month | 60,000 calls/month |
| Mailvett Pay as you go | $5 once | 1,000 calls, no expiry |
| Mailvett Cleaner yearly | $190/year | 5,000 calls/month |
| Mailvett Growth yearly | $490/year | 20,000 calls/month |
| Mailvett Agency yearly | $990/year | 60,000 calls/month |
Kickbox published prices on kickbox.com (2026-09-27): 1,000 = $10; 5,000 = $40; 10,000 = $70 (one-time credits).
What you get with Mailvett
- REST API with an OpenAPI spec and a remote MCP server for AI agents; the same key works on both.
- A free daily quota with no signup, so you can test on your own data first.
- Instant key after Stripe checkout; cancel any time, no overage charges.
Kickbox is a trademark of its owner; this page only compares published prices. Features differ between products, so check both before you switch.