Endpoint · computeGETdata.greeneris.io /v1/validate/email ?email=contact%40anthropic.com
One-call email verification for lead qualification and list hygiene: RFC 5322 syntax check, then a live MX lookup over DNS-over-HTTPS (Cloudflare, Google fallback).
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One-call email verification for lead qualification and list hygiene: RFC 5322 syntax check, then a live MX lookup over DNS-over-HTTPS (Cloudflare, Google fallback). Detects non-existent domains (NXDOMAIN), null-MX domains that refuse mail (RFC 7505), and returns prioritized MX hosts. Query: [email protected]. Verdict: deliverable | risky | undeliverable. 1h cache per address.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.005 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://data.greeneris.io/v1/validate/email?email=contact%40anthropic.com
MCP server on this host: io.github.contentfactory/eu-verify
Seen
first 35 days ago · last 7 days ago
64 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.734 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.266: 0.066 uncertain ? + 0.200 short ? · 0.066 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| liveness it answered at all |
0.60 | 1.00 | 0.890 | 0.534 | 0 | −0.066 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.734 | gap to 1.000 = 0.266 · 0.200 short · 0.066 uncertain | 0.734 | −0.200 | −0.066 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.000 latency p95
+ 0.600 × 0.890 liveness
+ 0.200 × 1.000 price stability
= 0.734 → UNRATED: 56 of 30 paid calls weights 2026.09.6 · 56 samples · seed cap_01M1A59XG85YRC3TE1K39XMNDP|2026-09-03T19:37:39.367Z|2026.09.6
Verify it yourself
npx teppi-check https://data.greeneris.io/v1/validate/email?email=contact%40anthropic.comcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A59XG85YRC3TE1K39XMNDP