Visa Network Timeout Test Card Numbers
Visa · Network Timeout: network_timeout introduces a ~10s delay before the gateway responds. Use it to test client timeouts, webhook retry storms, and queue workers that assume fast responses.
Visa test PANs use standard 16-digit formatting. MockCard returns Luhn-valid numbers and a signed payment_intent webhook — ideal for Stripe-style integrations and CI pipelines.
When to use: Load tests and resilience checks where your HTTP client timeout is shorter than gateway latency.
CI tip: Run with webhook_url set to measure whether your handler times out before the event arrives.
Typical decline_code in webhook payloads: processing_error.
Click card to flip
Same scenario, other networks
Need webhook race conditions or 3DS abandonment? See payment failure testing and the API docs. Compare plans on pricing.
API example
const res = await fetch("https://mockcard.io/api/v1/generate", {
method: "POST",
headers: {
"Content-Type": "application/json",
"X-Api-Key": process.env.MOCKCARD_API_KEY ?? "",
},
body: JSON.stringify({
brand: "visa", // visa | mastercard | rupay | amex
scenario: "success", // success | insufficient_funds | 3ds_challenge …
}),
});
const card = await res.json();
// { card_number, expiry_month, expiry_year, cvv, brand, scenario }
console.log(card.card_number, card.cvv);