Endpoint · lookupGETapi.strale.io /x402/email-deliverability-check
Check email deliverability for a domain: SPF, DKIM, DMARC, MX records, blacklist status.
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Check email deliverability for a domain: SPF, DKIM, DMARC, MX records, blacklist status. Returns 0-100 score.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.054 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.strale.io/x402/email-deliverability-check
MCP server on this host: io.github.strale-io/strale
Seen
first 35 days ago · last 16 hr ago
78 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.815 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.185: 0.082 uncertain ? + 0.103 short ? · 0.085 to A
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.49 | 0.339 | 0.068 | −0.103 | −0.030 | |
| liveness it answered at all |
0.60 | 1.00 | 0.912 | 0.547 | 0 | −0.053 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.815 | gap to 1.000 = 0.185 · 0.103 short · 0.082 uncertain | 0.815 | −0.103 | −0.082 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.339 latency p95
+ 0.600 × 0.912 liveness
+ 0.200 × 1.000 price stability
= 0.815 → UNRATED: 70 of 30 paid calls weights 2026.09.6 · 70 samples · seed cap_01M1A5AAE92BEY5EGPA9RFHZQF|2026-09-01T18:17:29.725Z|2026.09.6
Verify it yourself
npx teppi-check https://api.strale.io/x402/email-deliverability-checkcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5AAE92BEY5EGPA9RFHZQF