Issue a Lithic virtual card, configure authorization rules, and simulate a transaction via the sandbox

Steps

1. Authenticate requests by including your API key in the Authorization header as a bare key value (not Bearer-prefixed) per docs.lithic.com/docs/api-basics.
2. POST to https://api.lithic.com/v1/cards with a body specifying type: VIRTUAL and optionally spend_limit, spend_limit_duration, and state: OPEN to create an active virtual card.
3. Optionally attach Authorization Rules via the Authorization Rules endpoints (docs.lithic.com/docs/authorization-rules-v2) to restrict the card to specific MCCs, merchants, or apply velocity limits.
4. In sandbox, simulate a card authorization by calling the simulations endpoint with the card token and a transaction amount; inspect the returned authorization decision.
5. Retrieve card PAN and CVV in sandbox (or in production only for PCI-compliant clients) via the card details endpoint.
6. Subscribe to card-related events using the Events API (docs.lithic.com/docs/events-api) to receive webhook notifications for authorizations, clearings, and disputes.