Endpoint · computeGETdata.greeneris.io /v1/validate/isin ?isin=US0378331005
Deterministic ISIN check before routing an order or paying a market-data API: structure regex (2-letter country or XS/EU, 9-char NSIN, check digit) and the Luhn checksum over the…
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Deterministic ISIN check before routing an order or paying a market-data API: structure regex (2-letter country or XS/EU, 9-char NSIN, check digit) and the Luhn checksum over the base-36 expansion. Query: ?isin=US0378331005. Returns valid, country_code, nsin, check_digit and is_international. A corrupted ISIN means a rejected order or the wrong instrument. Pure offline computation, 1y cache.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.002 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://data.greeneris.io/v1/validate/isin?isin=US0378331005
MCP server on this host: io.github.contentfactory/eu-verify
Seen
first 35 days ago · last 8 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
0.793 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.207: 0.071 uncertain ? + 0.136 short ? · 0.007 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.32 | 0.283 | 0.057 | −0.136 | −0.007 | |
| liveness it answered at all |
0.60 | 1.00 | 0.894 | 0.536 | 0 | −0.064 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.793 | gap to 1.000 = 0.207 · 0.136 short · 0.071 uncertain | 0.793 | −0.136 | −0.071 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.283 latency p95
+ 0.600 × 0.894 liveness
+ 0.200 × 1.000 price stability
= 0.793 → UNRATED: 58 of 30 paid calls weights 2026.09.6 · 58 samples · seed cap_01M1A59YECRY109CV5XK19S0XC|2026-09-02T09:32:41.189Z|2026.09.6
Verify it yourself
npx teppi-check https://data.greeneris.io/v1/validate/isin?isin=US0378331005curl -s https://api.teppi.xyz/v1/trust/cap_01M1A59YECRY109CV5XK19S0XC