Endpoint · computeGET2s.io /api/email/validate ?email=jane.doe%40gmail.com
Validate an email address and return structured signals: RFC syntax validity (isSyntaxValid + reason if not), the normalized address with split local/domain, and boolean flags for…
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Validate an email address and return structured signals: RFC syntax validity (isSyntaxValid + reason if not), the normalized address with split local/domain, and boolean flags for isDisposable (throwaway/temp-mail domain), isRoleAccount (info@, support@, admin@, …), and isFreeProvider (gmail/outlook/yahoo/icloud/…). With checkMx (default true) it also reports hasMxRecords — whether the domain publishes MX records, looked up live via DNS-over-HTTPS — plus the MX hosts. IMPORTANT: this is NOT a deliverability or mailbox-existence guarantee (catch-all domains, greylisting, and privacy relays make that impossible to assert from a single lookup); hasMxRecords reflects DNS MX presence only. Useful for signup-flow hygiene, lead scrubbing, and flagging disposable/role addresses before sending.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.0025 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://2s.io/api/email/validate?email=jane.doe%40gmail.com
Seen
first 35 days ago · last 24 days ago
33 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC, Solana
Listed on?
Base, Solana
Score, from free handshakes onlyweights 2026.09.1
UN
RATED
RATED
0.736 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.264: 0.135 uncertain ? + 0.129 short ? · 0.064 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.35 | 0.256 | 0.051 | −0.129 | −0.020 | |
| liveness it answered at all |
0.60 | 1.00 | 0.808 | 0.485 | 0 | −0.115 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.736 | gap to 1.000 = 0.264 · 0.129 short · 0.135 uncertain | 0.736 | −0.129 | −0.135 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.256 latency p95
+ 0.600 × 0.808 liveness
+ 0.200 × 1.000 price stability
= 0.736 → UNRATED: 32 of 30 paid calls weights 2026.09.1 · 32 samples · seed cap_01M1A5QD74KMNA0XR0ZDWD2FY9|2026-08-17T20:40:18.513Z|2026.09.1
Verify it yourself
npx teppi-check https://2s.io/api/email/validate?email=jane.doe%40gmail.comcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QD74KMNA0XR0ZDWD2FY9