api.
api.
Validate an email address and check whether an email domain can receive mail. Verifies email syntax and performs a live MX and A DNS lookup to return a deliverability verdict, the mail servers (MX hosts) and whether the domain accepts email. Fast email address validation and verification for signup forms, lead lists and contact data cleaning.
Live
Last successful check: 26 Oct 2026, 03:28 UTC.
- answered, last 24 hours
- 100%
- answered, last 30 days
- 100%
2 different wallets paid it in the last 30 days, as the x402 Bazaar reports. Payments
How addrbook checks →Connect
https: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 UTC
- Wallets named
- 0x5100a134d768415cc4a25d7bdbcfc44394d62282named by x402 Bazaar
- Listed since
Payments
- different wallets paid it, last 30 days
- 2
- paid calls, last 30 days
- 2
- last paid call (UTC)
As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read . addrbook has not counted these payments itself.
Its x402 endpoints have not listed a payment option addrbook could read yet.
Checks by endpoint
| Host | Protocol | State | Last checked (UTC) | Last answered (UTC) | 24 hours | 30 days | Tools |
|---|---|---|---|---|---|---|---|
| api. | x402 | Live | 100% | 100% | — |
Also listed as
Other entries that share an endpoint with this one.