Will Stripe deprecate this workflow?

MockCard complements Stripe — it doesn't replace live API testing.

Stripe sandbox alternative

Keep Stripe for live parity — use MockCard when sandbox can't model retries, limbo, or duplicate webhooks.

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What sandbox does well

Stripe test mode validates real API compatibility — PaymentIntents, Connect, and dashboard flows. Keep using it before release.

What sandbox misses

Controlled duplicate webhooks, limbo (captured but no webhook), latency storms, and 3DS abandonment on demand. MockCard targets those gaps with a single REST API.

Recommended split

Stripe sandbox for E2E with real objects; MockCard for unit/integration tests and webhook handler suites in CI.

Frequently asked questions

Will Stripe deprecate this workflow?: MockCard complements Stripe — it doesn't replace live API testing.

Related guides

Stripe test cards
Stripe webhook health check
Test card numbers for payment testing