Verify

x402 resource x402 REST

api.x-402.online · api.x-402.online · Comms & Messaging

Provider site ↗

Check whether an email address is well-formed and its domain can receive mail, before you send. Five DNS checks on an email address, no message sent: syntax, MX presence and hosts, SPF record, DMARC policy, disposable domain, role address. Returns deliverable as NO, RISKY or LIKELY. It does not open

Price per call 0.005 USDC per call published unit: per call

Calls · 30d 2 counted by the source, no daily split

Buyers · 30d — Observed sending wallets · Base USDC · partial sender history · purchases unverified

Volume · 30d — Observed Base USDC inflows · not attributable or not measured

Inflow growth · 7d — not comparable (baseline under $1 or window incomplete)

Trx · 30d — Observed transfers · not attributable or not measured

Attribution blocked. The payout address is also published by 58 other service(s); the volume cannot be attributed to one of them.

Observed inflows · last 30 days

No inflow observed in this window

The payout address is also published by 58 other service(s); the volume cannot be attributed to one of them.

Observed inflows by window for Verify.
Window	Observed	Transfers
Last complete day (2026-11-04)	—	—
Last 7 days	—	—
Last 30 days	—	—
Growth, 7d against the 7 before	not comparable

Source: on-chain transfer scan (USDC on Base) Window: 2026-10-06 → 2026-11-04 Scanned: 30/30 days Sample: 0 days with a measurement First seen: never Last update: 2026-11-04

Daily history →. Observed transfers show value arriving at the payout address; they do not establish service revenue.

Blockchain wallets

Full addresses · public payment evidence

Receiving wallets are payment addresses published for this service. Sending wallets transferred funds to an exclusive receiving address; this alone does not prove a purchase or identify an agent.

Receiving wallets · provider payment addresses

All published receiving wallet addresses for Verify.
Network	Full wallet address	Evidence
Solana	3tvSUk2R16rrL4eo2diYpMUsBH1wa3tafqJE44x3bVgs	Shared address · activity cannot be assigned to this serviceFrom source record · source: x402_bazaar
Base	0x2c871c2b8876dc35e9e19646fda5abf1cd27735f	Shared address · activity cannot be assigned to this serviceFrom source record · source: x402_bazaar

Sending wallets · observed counterparties

No sending wallet addresses have been retained for this service. Buyer wallets are unknown; daily totals and reported payer counts do not reveal their addresses.

Coverage includes retained scans only, not every historical transaction. Earlier daily totals cannot recover sender addresses. Sender lists exclude shared receiving wallets, whose transfers could belong to another service. A provider address does not establish wallet ownership.

Competitors & category benchmark

Rank the whole category →

Closest competitors Comms & Messaging

Email 2,672 calls · 0.03 USDC per call —
Mx lookup 1,195 calls · 0.0216 USDC per call —
Person profile 860 calls · 0.001 USDC per call —
Person email status 364 calls · 0.001 USDC per call —
Match 312 calls · 0.01 USDC per call —

Sorted by source-measured calls, not by our opinion. The right-hand figure is observed inflow, which stays empty for peers whose address is shared.

Category benchmark 3,273 services in this category

With a measured call count	966 (29.5 %)
With a published price	1,206 (36.8 %)
With attributable inflows	29 (0.9 %)
Observed inflows · 30d	$57.30
Median measured calls	1
Median price per call	$0.01