RUT Validator

Chilean RUT / RUN · Issuer: SII / Registro Civil. SII e-invoices, user registration, shipping.

Format

7–8 digit body plus a check digit 0–9 or K: 12.345.678-5.

Check-digit algorithm

1. Walk the body right-to-left with cyclic weights 2,3,4,5,6,7.
2. DV = 11 − (sum mod 11).
3. 11 → 0, 10 → K.

Use cases

SII e-invoices, user registration, shipping.

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":"CL_RUT","value":"168378769"}'

# Python
import requests
r = requests.post("https://validalatam.p.rapidapi.com/validate", json={"type": "CL_RUT", "value": "168378769"},
                 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: "CL_RUT", value: "168378769" }) });
const { valid, formatted, error } = await r.json();

# Response
{
  "valid": true,
  "type": "CL_RUT",
  "country": "CL",
  "input": "168378769",
  "normalized": "168378769",
  "formatted": "16.837.876-9"
}

API plans on RapidAPI

Free plan to get started; paid plans for production volume and batch validation (up to 1000 per request).

See plans on RapidAPI →

FAQ

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