Authentication

Every API call is authenticated with an API key passed in the x-api-key header. Keys are bound to an account or an organization and inherit that owner's plan and balance.

RFCCheck and CURPCheck share accounts: one key calls the RFC endpoints and the CURP endpoints, on rfccheck.com or curpcheck.com, and every call draws from the same plan and balance.

Generating a key

Open API Keys in your dashboard and click Create key. Give the key a label so future-you can tell apart your CI key from your production key.

Keys are shown only once at creation time. Copy yours into a secret manager (1Password, AWS Secrets Manager, Doppler, .env, your CI provider's secrets) before navigating away. If you lose a key, delete it and create a new one. There is no way to recover it.

Using a key

Pass the key in the x-api-key header on every request:

curl -X POST https://inecheck.com/v1/ine/verify \
  -H "x-api-key: rfc_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"cic": "123456789", "id_ciudadano": "987654321"}'

await fetch("https://inecheck.com/v1/ine/verify", {
  method: "POST",
  headers: {
    "x-api-key": process.env.INECHECK_API_KEY,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ cic: "123456789", id_ciudadano: "987654321" }),
});

import os, requests

requests.post(
    "https://inecheck.com/v1/ine/verify",
    headers={"x-api-key": os.environ["INECHECK_API_KEY"]},
    json={"cic": "123456789", "id_ciudadano": "987654321"},
)

Rotating keys

Rotate keys whenever a teammate leaves or a key may have been exposed. The recommended pattern: create the new key, deploy it to your secret store, switch traffic over, then delete the old key from the dashboard.

Organization keys

Keys created inside an organization (under /org/:slug/api-keys) bill against the organization's plan and balance, not the creator's personal account. Use organization keys whenever the cost should be attributed to a team rather than an individual.

Error responses

• 401 Unauthorized: the key is missing, malformed, or has been deleted.
• 402 Payment Required: the key authenticated, but the owner has no remaining credits or prepaid balance.
• 429 Too Many Requests: rate limit exceeded. Back off and retry.