Toolsmith

toolcall.click · x402

Email verification and deliverability check without sending anything: syntax, MX records, disposable-domain detection (121k+ known domains), role-account and free-provider flags. JSON verdict with a bounce/deliverability risk level. Validate emails for signup fraud prevention, list hygiene and lead qualification. $0.004 USDC per call, pay via x402, no API key.

Name and description as published by x402 Bazaar

Live

Last successful check: 25 Oct 2026, 20:20 UTC.

answered, last 24 hours: 100%
answered, last 30 days: 100%

How addrbook checks →

Connect

https://toolcall.click/t/email/validate

x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.

Who's behind it

Listed by: x402 Bazaarlast seen 25 Oct, 19:50 UTC
Wallets named: 0x84fa7ea8303d4f503267e2e998a3f7d980e814a5named by x402 Bazaar
Listed since: 25 Oct 2026, 17:50 UTC

Checks by endpoint

Host	Protocol	State	Last checked (UTC)	Last answered (UTC)	24 hours	30 days	Tools
toolcall.click	x402	Live	25 Oct, 20:20	25 Oct, 20:20	100%	100%	—

Also listed as

Other entries that share an endpoint with this one.

toolcall.click