CI UY Validator
Uruguayan national ID (CI) · Issuer: DNIC. User registration, KYC and public forms in Uruguay.
Free online validator
Validated with the public algorithm; we don't store your input.Format
6–7 digits plus a check digit: 1.234.567-2.
Check-digit algorithm
- Left-pad to 7 digits.
- Weights 2,9,8,7,6,3,4.
- DV = (10 − sum mod 10) mod 10.
Use cases
User registration, KYC and public forms in Uruguay.
Code examples
# curl (RapidAPI)
curl -X POST "https://validalatam.p.rapidapi.com/validate" -H "Content-Type: application/json" \
-H "X-RapidAPI-Key: $RAPIDAPI_KEY" -H "X-RapidAPI-Host: validalatam.p.rapidapi.com" \
-d '{"type":"UY_CI","value":"18300911"}'# Python
import requests
r = requests.post("https://validalatam.p.rapidapi.com/validate", json={"type": "UY_CI", "value": "18300911"},
headers={"X-RapidAPI-Key": KEY, "X-RapidAPI-Host": "validalatam.p.rapidapi.com"})
print(r.json()["valid"], r.json()["formatted"])// JavaScript (fetch)
const r = await fetch("https://validalatam.p.rapidapi.com/validate", { method: "POST",
headers: { "Content-Type": "application/json", "X-RapidAPI-Key": KEY, "X-RapidAPI-Host": "validalatam.p.rapidapi.com" },
body: JSON.stringify({ type: "UY_CI", value: "18300911" }) });
const { valid, formatted, error } = await r.json();# Response
{
"valid": true,
"type": "UY_CI",
"country": "UY",
"input": "18300911",
"normalized": "18300911",
"formatted": "1.830.091-1"
}API plans on RapidAPI
Free plan to get started; paid plans for production volume and batch validation (up to 1000 per request).
FAQ
How is the CI UY check digit calculated?
Left-pad to 7 digits. Weights 2,9,8,7,6,3,4. DV = (10 − sum mod 10) mod 10.
What is the CI UY format?
6–7 digits plus a check digit: 1.234.567-2.
Are 6-digit IDs valid?
Yes, they are left-padded with a zero before computing.
Is this validator free?
Yes, the web tool is free. To integrate it, use the API: there's a free plan on RapidAPI.
Does the API store the numbers I validate?
No. Validation is deterministic, with no storage and no third-party lookups.