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API · /creditcard-api

Credit Card API

healthy 4,561 Subscribers

A fast, fully-local payment-card toolkit: validate card numbers with the Luhn (mod-10) checksum, detect the brand by IIN/prefix (Visa, Mastercard including the 2-series, American Express, Discover, Diners, JCB, UnionPay, Maestro), format and mask numbers with brand-correct grouping, list supported brands with their valid lengths and CVV length, and generate synthetic Luhn-valid TEST card numbers for QA. Pure server-side compute, no third-party upstream, and inputs are never logged. It is algorithmic only (no real issuer/bank BIN-database lookup). Ideal for checkout forms, payment flows, fraud pre-checks and test fixtures.

#creditcard #payments #luhn #validation #bin #fintech #dev-tools
api.oanor.com/creditcard-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

/api/creditcard-api/openapi.json
/api/creditcard-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
67 ms
Server probes · 24h
Subscribers
4,561
active
Total calls
32
last 7 days
status Full status page → · 32 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 5,000 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 5,000 calls/month, 2 req/s
  • Luhn validation + card-brand detection by IIN/prefix
  • No credit card, inputs never logged
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Basic

€7.00 /month

  • 100,000 calls / month
  • 12 requests / second
  • Hard cap (429 above quota, no overage)
  • 100,000 calls/month, 12 req/s
  • All endpoints: validate, format, mask, brands catalog
  • Synthetic Luhn-valid TEST card generation for QA
  • Commercial use, email support
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Pro

€24.00 /month

  • 700,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 700,000 calls/month, 40 req/s
  • Full validation + brand + format/mask + TEST-generation suite
  • Priority email support, commercial use
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Mega

€69.00 /month

  • 4,000,000 calls / month
  • 150 requests / second
  • Hard cap (429 above quota, no overage)
  • 4,000,000 calls/month, 150 req/s
  • All endpoints at highest throughput
  • Priority support, commercial use, inputs never logged
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Built by

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IBAN Validation API

Validate IBANs with the ISO 7064 mod-97 checksum and per-country length and structure checks, and resolve the BIC and bank details for supported countries. A local parse endpoint works for every IBAN country offline; the validate endpoint adds bank-code verification and BIC. Ideal for payments, billing, onboarding and KYC.

api.oanor.com/iban-api

JSON Schema API

Validate JSON against JSON Schema, server-side. Check any data against a schema (Draft-07 or 2020-12) and get a clear pass/fail plus a detailed list of every error with its instance path, failing keyword and message; verify that a schema itself is well-formed; or infer a starter JSON Schema automatically from a sample document, complete with detected formats like email, URI and date. Built on the battle-tested Ajv engine with full format validation. Every endpoint accepts GET (JSON-encoded parameters) or a JSON POST body and runs entirely locally with no third-party upstream, so responses are instant and the service is always available. Ideal for API request/response validation, form and data-entry checks, ETL and data-quality pipelines, no-code platforms and contract testing.

api.oanor.com/jsonschema-api

Phone Validation API

Validate, parse and format phone numbers using Google libphonenumber: validity check, E.164 / national / international / RFC-3966 formats, country and calling code detection, and line type (mobile, fixed-line, VoIP, toll-free, premium-rate). Covers every country.

api.oanor.com/phone-api

Email Validation API

Verify email addresses without sending anything: RFC syntax validation, live MX-record lookup, disposable/throwaway detection (5,500+ domain blocklist), role-account and free-provider flags, "did you mean" typo suggestion, and a 0–100 deliverability score.

api.oanor.com/email-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Credit Card API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Credit Card API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Credit Card API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Credit Card API cost?
Credit Card API has a free tier with 100 calls / month. Paid plans start at €7.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Credit Card API GDPR-compliant?
All requests to Credit Card API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/creditcard-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/creditcard-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/creditcard-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/creditcard-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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