RUC EC Validator

Ecuadorian RUC (tax ID) · Issuer: SRI. SRI electronic receipts, supplier onboarding.

Format

13 digits. Individual: cédula + 001. Private company: third digit 9. Public entity: third digit 6.

Check-digit algorithm

1. Individual: validate the embedded cédula (mod 10) and branch suffix.
2. Private: weights 4,3,2,7,6,5,4,3,2, mod 11.
3. Public: weights 3,2,7,6,5,4,3,2 over 8 digits, mod 11.

Use cases

SRI electronic receipts, supplier onboarding.

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":"EC_RUC","value":"0398413539001"}'

# Python
import requests
r = requests.post("https://validalatam.p.rapidapi.com/validate", json={"type": "EC_RUC", "value": "0398413539001"},
                 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: "EC_RUC", value: "0398413539001" }) });
const { valid, formatted, error } = await r.json();

# Response
{
  "valid": true,
  "type": "EC_RUC",
  "country": "EC",
  "input": "0398413539001",
  "normalized": "0398413539001",
  "formatted": "0398413539001"
}

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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