Endpoint · computeGETstaging.402utils.com /v1/email-check ?email=user%40example.com
Validate an email address before you accept a signup or send to it: RFC 5322 syntax, whether the domain resolves and its MX records, whether it is a disposable/throwaway domain…
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Validate an email address before you accept a signup or send to it: RFC 5322 syntax, whether the domain resolves and its MX records, whether it is a disposable/throwaway domain (community blocklist), and whether it is a role account (info@, support@…). DNS is checked over DoH. No SMTP probing (intrusive and spammy), so a true 'domainExists' does not guarantee the mailbox exists.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.003 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://staging.402utils.com/v1/email-check?email=user%40example.com
Seen
first 11 days ago · last 10 hr ago
13 free handshakes
Payment
Pays through
x402
Offered on?
Base Sepolia USDC
Listed on?
Base Sepolia
Handshakescomputed 1 day ago
0.200 from 12 free handshakes over 30 days · UNRATED ?
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.50 | 0.000 | 0.000 | −0.303 | −0.297 | |
| latency p95 it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.200 | gap to 1.000 = 0.800 · 0.503 short · 0.297 uncertain | 0.200 | −0.503 | −0.297 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
BURN_INFREE_TIER_ONLY
Verify it yourself
npx teppi-check https://staging.402utils.com/v1/email-check?email=user%40example.comcurl -s https://api.teppi.xyz/v1/trust/cap_01M36CNNENHWRWT6F7Z0EKTB5G